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(-) Description

Title :  THREE DIMENSIONAL STRUCTURE OF A PEPTIDE EXTENDING OUT ONE END OF A CLASS I MHC BINDING SITE
 
Authors :  E. J. Collins, D. N. Garboczi, D. C. Wiley
Date :  01 Aug 94  (Deposition) - 31 Mar 95  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.00
Chains :  Asym. Unit :  A,B,C,D,E,F
Biol. Unit 1:  A,B,C  (1x)
Biol. Unit 2:  D,E,F  (1x)
Keywords :  Histocompatibility Antigen (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  E. J. Collins, D. N. Garboczi, D. C. Wiley
Three-Dimensional Structure Of A Peptide Extending From One End Of A Class I Mhc Binding Site.
Nature V. 371 626 1994
PubMed-ID: 7935798  |  Reference-DOI: 10.1038/371626A0
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - CLASS I HISTOCOMPATIBILITY ANTIGEN (HLA-A 0201) (ALPHA CHAIN)
    ChainsA, D
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System Taxid562
    GeneBETA-2-MICROGLOBULIN
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606
 
Molecule 2 - BETA 2-MICROGLOBULIN
    ChainsB, E
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System Taxid562
    GeneBETA-2-MICROGLOBULIN
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606
 
Molecule 3 - DECAMERIC PEPTIDE FROM CALRETICULIN
    ChainsC, F
    EngineeredYES
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606

 Structural Features

(-) Chains, Units

  123456
Asymmetric Unit ABCDEF
Biological Unit 1 (1x)ABC   
Biological Unit 2 (1x)   DEF

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (0, 0)

(no "Ligand,Modified Residues,Ions" information available for 2CLR)

(-) Sites  (0, 0)

(no "Site" information available for 2CLR)

(-) SS Bonds  (6, 6)

Asymmetric Unit
No.Residues
1A:101 -A:164
2A:203 -A:259
3B:25 -B:80
4D:101 -D:164
5D:203 -D:259
6E:25 -E:80

(-) Cis Peptide Bonds  (4, 4)

Asymmetric Unit
No.Residues
1Tyr A:209 -Pro A:210
2His B:31 -Pro B:32
3Tyr D:209 -Pro D:210
4His E:31 -Pro E:32

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (24, 48)

Asymmetric Unit (24, 48)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
01UniProtVAR_004334F33Y1A02_HUMANPolymorphism2075684A/DF9Y
02UniProtVAR_004335D54N1A02_HUMANPolymorphism41549215A/DD30N
03UniProtVAR_016726A65G1A02_HUMANPolymorphism41557613A/DA41G
04UniProtVAR_004336Q67R1A02_HUMANPolymorphism41559117A/DQ43R
05UniProtVAR_076446R89G1A02_HUMANPolymorphism199474430A/DR65G
06UniProtVAR_004337K90N1A02_HUMANPolymorphism199474436A/DK66N
07UniProtVAR_016727H94Q1A02_HUMANPolymorphism78306866A/DH70Q
08UniProtVAR_004338T97I1A02_HUMANPolymorphism199474457A/DT73I
09UniProtVAR_016728H98D1A02_HUMANPolymorphism1136683A/DH74D
10UniProtVAR_076691D96NB2MG_HUMANDisease (AMYL8)398122820B/ED76N
11UniProtVAR_004339V119L1A02_HUMANPolymorphism1071743A/DV95L
12UniProtVAR_004340R121M1A02_HUMANPolymorphism199474485A/DR97M
13UniProtVAR_004341Y123C1A02_HUMANPolymorphism1136697A/DY99C
14UniProtVAR_004342Y123F1A02_HUMANPolymorphism1136697A/DY99F
15UniProtVAR_004343W131G1A02_HUMANPolymorphism1136702A/DW107G
16UniProtVAR_004344M162K1A02_HUMANPolymorphism41549316A/DM138K
17UniProtVAR_004345A173T1A02_HUMANPolymorphism1059526A/DA149T
18UniProtVAR_004346V176E1A02_HUMANPolymorphism9256983A/DV152E
19UniProtVAR_004348L180Q1A02_HUMANPolymorphism  ---A/DL156Q
20UniProtVAR_004347L180W1A02_HUMANPolymorphism9260156A/DL156W
21UniProtVAR_004349T187E1A02_HUMANPolymorphism  ---A/DT163E
22UniProtVAR_016729E190D1A02_HUMANPolymorphism879577815A/DE166D
23UniProtVAR_016730W191G1A02_HUMANPolymorphism3098019A/DW167G
24UniProtVAR_004350A260E1A02_HUMANPolymorphism41540417A/DA236E

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)
Biological Unit 1 (24, 24)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
01UniProtVAR_004334F33Y1A02_HUMANPolymorphism2075684AF9Y
02UniProtVAR_004335D54N1A02_HUMANPolymorphism41549215AD30N
03UniProtVAR_016726A65G1A02_HUMANPolymorphism41557613AA41G
04UniProtVAR_004336Q67R1A02_HUMANPolymorphism41559117AQ43R
05UniProtVAR_076446R89G1A02_HUMANPolymorphism199474430AR65G
06UniProtVAR_004337K90N1A02_HUMANPolymorphism199474436AK66N
07UniProtVAR_016727H94Q1A02_HUMANPolymorphism78306866AH70Q
08UniProtVAR_004338T97I1A02_HUMANPolymorphism199474457AT73I
09UniProtVAR_016728H98D1A02_HUMANPolymorphism1136683AH74D
10UniProtVAR_076691D96NB2MG_HUMANDisease (AMYL8)398122820BD76N
11UniProtVAR_004339V119L1A02_HUMANPolymorphism1071743AV95L
12UniProtVAR_004340R121M1A02_HUMANPolymorphism199474485AR97M
13UniProtVAR_004341Y123C1A02_HUMANPolymorphism1136697AY99C
14UniProtVAR_004342Y123F1A02_HUMANPolymorphism1136697AY99F
15UniProtVAR_004343W131G1A02_HUMANPolymorphism1136702AW107G
16UniProtVAR_004344M162K1A02_HUMANPolymorphism41549316AM138K
17UniProtVAR_004345A173T1A02_HUMANPolymorphism1059526AA149T
18UniProtVAR_004346V176E1A02_HUMANPolymorphism9256983AV152E
19UniProtVAR_004348L180Q1A02_HUMANPolymorphism  ---AL156Q
20UniProtVAR_004347L180W1A02_HUMANPolymorphism9260156AL156W
21UniProtVAR_004349T187E1A02_HUMANPolymorphism  ---AT163E
22UniProtVAR_016729E190D1A02_HUMANPolymorphism879577815AE166D
23UniProtVAR_016730W191G1A02_HUMANPolymorphism3098019AW167G
24UniProtVAR_004350A260E1A02_HUMANPolymorphism41540417AA236E

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)
Biological Unit 2 (24, 24)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
01UniProtVAR_004334F33Y1A02_HUMANPolymorphism2075684DF9Y
02UniProtVAR_004335D54N1A02_HUMANPolymorphism41549215DD30N
03UniProtVAR_016726A65G1A02_HUMANPolymorphism41557613DA41G
04UniProtVAR_004336Q67R1A02_HUMANPolymorphism41559117DQ43R
05UniProtVAR_076446R89G1A02_HUMANPolymorphism199474430DR65G
06UniProtVAR_004337K90N1A02_HUMANPolymorphism199474436DK66N
07UniProtVAR_016727H94Q1A02_HUMANPolymorphism78306866DH70Q
08UniProtVAR_004338T97I1A02_HUMANPolymorphism199474457DT73I
09UniProtVAR_016728H98D1A02_HUMANPolymorphism1136683DH74D
10UniProtVAR_076691D96NB2MG_HUMANDisease (AMYL8)398122820ED76N
11UniProtVAR_004339V119L1A02_HUMANPolymorphism1071743DV95L
12UniProtVAR_004340R121M1A02_HUMANPolymorphism199474485DR97M
13UniProtVAR_004341Y123C1A02_HUMANPolymorphism1136697DY99C
14UniProtVAR_004342Y123F1A02_HUMANPolymorphism1136697DY99F
15UniProtVAR_004343W131G1A02_HUMANPolymorphism1136702DW107G
16UniProtVAR_004344M162K1A02_HUMANPolymorphism41549316DM138K
17UniProtVAR_004345A173T1A02_HUMANPolymorphism1059526DA149T
18UniProtVAR_004346V176E1A02_HUMANPolymorphism9256983DV152E
19UniProtVAR_004348L180Q1A02_HUMANPolymorphism  ---DL156Q
20UniProtVAR_004347L180W1A02_HUMANPolymorphism9260156DL156W
21UniProtVAR_004349T187E1A02_HUMANPolymorphism  ---DT163E
22UniProtVAR_016729E190D1A02_HUMANPolymorphism879577815DE166D
23UniProtVAR_016730W191G1A02_HUMANPolymorphism3098019DW167G
24UniProtVAR_004350A260E1A02_HUMANPolymorphism41540417DA236E

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

(-) PROSITE Motifs  (1, 4)

Asymmetric Unit (1, 4)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1IG_MHCPS00290 Immunoglobulins and major histocompatibility complex proteins signature.B2MG_HUMAN98-104
 
  2B:78-84
E:78-84
1A02_HUMAN281-287
 
  2A:257-263
D:257-263
Biological Unit 1 (1, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1IG_MHCPS00290 Immunoglobulins and major histocompatibility complex proteins signature.B2MG_HUMAN98-104
 
  1B:78-84
-
1A02_HUMAN281-287
 
  1A:257-263
-
Biological Unit 2 (1, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1IG_MHCPS00290 Immunoglobulins and major histocompatibility complex proteins signature.B2MG_HUMAN98-104
 
  1-
E:78-84
1A02_HUMAN281-287
 
  1-
D:257-263

(-) Exons   (1, 2)

Asymmetric Unit (1, 2)
 ENSEMBLUniProtKBPDB
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength
1.1ENST000003164481ENSE00001255609chr19:13049414-13049584171CALR_HUMAN1-31312C:1-10
F:1-10
10
10
1.2ENST000003164482ENSE00001255592chr19:13049948-13050049102CALR_HUMAN31-65350--
1.3ENST000003164483ENSE00001255581chr19:13050242-13050445204CALR_HUMAN65-133690--
1.4ENST000003164484ENSE00001255572chr19:13050867-1305096195CALR_HUMAN133-164320--
1.5ENST000003164485ENSE00001255567chr19:13051057-13051266210CALR_HUMAN165-234700--
1.6ENST000003164486ENSE00001255558chr19:13051355-13051468114CALR_HUMAN235-272380--
1.7ENST000003164487ENSE00001255547chr19:13051558-13051701144CALR_HUMAN273-320480--
1.8ENST000003164488ENSE00001255537chr19:13054351-1305444393CALR_HUMAN321-351310--
1.9ENST000003164489ENSE00001255601chr19:13054527-13055304778CALR_HUMAN352-417660--

(-) Sequences/Alignments

Asymmetric Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
  Number of residues per labelling interval =   
  UniProt sequence: complete  aligned part    
   Show mapping: SCOP domains CATH domains Pfam domains Secondary structure (by author)
SAPs(SNPs) PROSITE motifs Exons
(details for a mapped element are shown in a popup box when the mouse pointer rests over it)
Chain A from PDB  Type:PROTEIN  Length:275
 aligned with 1A02_HUMAN | P01892 from UniProtKB/Swiss-Prot  Length:365

    Alignment length:275
                                    34        44        54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284       294     
           1A02_HUMAN    25 GSHSMRYFFTSVSRPGRGEPRFIAVGYVDDTQFVRFDSDAASQRMEPRAPWIEQEGPEYWDGETRKVKAHSQTHRVDLGTLRGYYNQSEAGSHTVQRMYGCDVGSDWRFLRGYHQYAYDGKDYIALKEDLRSWTAADMAAQTTKHKWEAAHVAEQLRAYLEGTCVEWLRRYLENGKETLQRTDAPKTHMTHHAVSDHEATLRCWALSFYPAEITLTWQRDGEDQTQDTELVETRPAGDGTFQKWAAVVVPSGQEQRYTCHVQHEGLPKPLTLRWE 299
               SCOP domains d2clra2 A:1-181 Class I MHC, alpha-1 and alpha-2 domains                                                                                                                             d2clra1 A:182-275 Class I MHC, alpha-3 domain                                                  SCOP domains
               CATH domains 2clrA01 A:1-181 Murine Class I Major Histocompatibility Complex, H2-DB, subunit A, domain 1                                                                                          2clrA02 A:182-275 Immunoglobulins                                                              CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeeeeeeeee........eeeeeeee..eeeeeee........ee.hhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhh.........eeeeeeeeee.....eeeeeeeeee..eeeeee......eee....hhhhhhhhhh..hhhhhhhhhh.hhhhhhhhhhhh.hhhh......eeeeeeeeee..eeeeeeeeeee.....eeeeee..ee.....ee...ee.....eeeeeeeeee......eeeeee.......eeee.. Sec.struct. author
             SAPs(SNPs) (1) --------Y--------------------N----------G-R---------------------GN---Q--ID--------------------L-M-C-------G------------------------------K----------T--E---Q------E--DG--------------------------------------------------------------------E--------------------------------------- SAPs(SNPs) (1)
             SAPs(SNPs) (2) --------------------------------------------------------------------------------------------------F--------------------------------------------------------W----------------------------------------------------------------------------------------------------------------------- SAPs(SNPs) (2)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------IG_MHC ------------ PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2clr A   1 GSHSMRYFFTSVSRPGRGEPRFIAVGYVDDTQFVRFDSDAASQRMEPRAPWIEQEGPEYWDGETRKVKAHSQTHRVDLGTLRGYYNQSEAGSHTVQRMYGCDVGSDWRFLRGYHQYAYDGKDYIALKEDLRSWTAADMAAQTTKHKWEAAHVAEQLRAYLEGTCVEWLRRYLENGKETLQRTDAPKTHMTHHAVSDHEATLRCWALSFYPAEITLTWQRDGEDQTQDTELVETRPAGDGTFQKWAAVVVPSGQEQRYTCHVQHEGLPKPLTLRWE 275
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270     

Chain B from PDB  Type:PROTEIN  Length:100
 aligned with B2MG_HUMAN | P61769 from UniProtKB/Swiss-Prot  Length:119

    Alignment length:100
                                    29        39        49        59        69        79        89        99       109       119
           B2MG_HUMAN    20 AIQRTPKIQVYSRHPAENGKSNFLNCYVSGFHPSDIEVDLLKNGERIEKVEHSDLSFSKDWSFYLLYYTEFTPTEKDEYACRVNHVTLSQPKIVKWDRDM 119
               SCOP domains d2clrb_ B: beta2-microglobulin                                                                       SCOP domains
               CATH domains 2clrB00 B:0-99 Immunoglobulins                                                                       CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ......eeeeee.........eeeeeeeeee.....eeeeee..ee....ee...ee.....eeeeeeeee.......eeeeee.......eeee..... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------N----------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------IG_MHC --------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------- Transcript
                 2clr B   0 MIQRTPKIQVYSRHPAENGKSNFLNCYVSGFHPSDIEVDLLKNGERIEKVEHSDLSFSKDWSFYLLYYTEFTPTEKDEYACRVNHVTLSQPKIVKWDRDM  99
                                     9        19        29        39        49        59        69        79        89        99

Chain C from PDB  Type:PROTEIN  Length:10
 aligned with CALR_HUMAN | P27797 from UniProtKB/Swiss-Prot  Length:417

    Alignment length:10
                                    10
           CALR_HUMAN     1 MLLSVPLLLG  10
               SCOP domains ---------- SCOP domains
               CATH domains ---------- CATH domains
               Pfam domains ---------- Pfam domains
         Sec.struct. author .......... Sec.struct. author
                 SAPs(SNPs) ---------- SAPs(SNPs)
                    PROSITE ---------- PROSITE
               Transcript 1 Exon 1.1   Transcript 1
                 2clr C   1 MLLSVPLLLG  10
                                    10

Chain D from PDB  Type:PROTEIN  Length:275
 aligned with 1A02_HUMAN | P01892 from UniProtKB/Swiss-Prot  Length:365

    Alignment length:275
                                    34        44        54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284       294     
           1A02_HUMAN    25 GSHSMRYFFTSVSRPGRGEPRFIAVGYVDDTQFVRFDSDAASQRMEPRAPWIEQEGPEYWDGETRKVKAHSQTHRVDLGTLRGYYNQSEAGSHTVQRMYGCDVGSDWRFLRGYHQYAYDGKDYIALKEDLRSWTAADMAAQTTKHKWEAAHVAEQLRAYLEGTCVEWLRRYLENGKETLQRTDAPKTHMTHHAVSDHEATLRCWALSFYPAEITLTWQRDGEDQTQDTELVETRPAGDGTFQKWAAVVVPSGQEQRYTCHVQHEGLPKPLTLRWE 299
               SCOP domains d2clrd2 D:1-181 Class I MHC, alpha-1 and alpha-2 domains                                                                                                                             d2clrd1 D:182-275 Class I MHC, alpha-3 domain                                                  SCOP domains
               CATH domains 2clrD01 D:1-181 Murine Class I Major Histocompatibility Complex, H2-DB, subunit A, domain 1                                                                                          2clrD02 D:182-275 Immunoglobulins                                                              CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeeeeeeeee........eeeeeeee..eeeeeee........ee.hhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhh.........eeeeeeeeee.....eeeeeeeeee..eeeeee......eee....hhhhhhhhhh..hhhhhhhhhh.hhhhhhhhhhhh.hhhh......eeeeeeeeee..eeeeeeeeeee.....eeeeee..ee.....ee...ee.....eeeeeeeeee......eeeeee.......eeee.. Sec.struct. author
             SAPs(SNPs) (1) --------Y--------------------N----------G-R---------------------GN---Q--ID--------------------L-M-C-------G------------------------------K----------T--E---Q------E--DG--------------------------------------------------------------------E--------------------------------------- SAPs(SNPs) (1)
             SAPs(SNPs) (2) --------------------------------------------------------------------------------------------------F--------------------------------------------------------W----------------------------------------------------------------------------------------------------------------------- SAPs(SNPs) (2)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------IG_MHC ------------ PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2clr D   1 GSHSMRYFFTSVSRPGRGEPRFIAVGYVDDTQFVRFDSDAASQRMEPRAPWIEQEGPEYWDGETRKVKAHSQTHRVDLGTLRGYYNQSEAGSHTVQRMYGCDVGSDWRFLRGYHQYAYDGKDYIALKEDLRSWTAADMAAQTTKHKWEAAHVAEQLRAYLEGTCVEWLRRYLENGKETLQRTDAPKTHMTHHAVSDHEATLRCWALSFYPAEITLTWQRDGEDQTQDTELVETRPAGDGTFQKWAAVVVPSGQEQRYTCHVQHEGLPKPLTLRWE 275
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270     

Chain E from PDB  Type:PROTEIN  Length:100
 aligned with B2MG_HUMAN | P61769 from UniProtKB/Swiss-Prot  Length:119

    Alignment length:100
                                    29        39        49        59        69        79        89        99       109       119
           B2MG_HUMAN    20 AIQRTPKIQVYSRHPAENGKSNFLNCYVSGFHPSDIEVDLLKNGERIEKVEHSDLSFSKDWSFYLLYYTEFTPTEKDEYACRVNHVTLSQPKIVKWDRDM 119
               SCOP domains d2clre_ E: beta2-microglobulin                                                                       SCOP domains
               CATH domains 2clrE00 E:0-99 Immunoglobulins                                                                       CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ......eeeeee.........eeeeeeeeee.....eeeeee..ee....ee...ee.....eeeeeeeee.......eeeeee.......eeee..... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------N----------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------IG_MHC --------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------- Transcript
                 2clr E   0 MIQRTPKIQVYSRHPAENGKSNFLNCYVSGFHPSDIEVDLLKNGERIEKVEHSDLSFSKDWSFYLLYYTEFTPTEKDEYACRVNHVTLSQPKIVKWDRDM  99
                                     9        19        29        39        49        59        69        79        89        99

Chain F from PDB  Type:PROTEIN  Length:10
 aligned with CALR_HUMAN | P27797 from UniProtKB/Swiss-Prot  Length:417

    Alignment length:10
                                    10
           CALR_HUMAN     1 MLLSVPLLLG  10
               SCOP domains ---------- SCOP domains
               CATH domains ---------- CATH domains
               Pfam domains ---------- Pfam domains
         Sec.struct. author .......... Sec.struct. author
                 SAPs(SNPs) ---------- SAPs(SNPs)
                    PROSITE ---------- PROSITE
               Transcript 1 Exon 1.1   Transcript 1
                 2clr F   1 MLLSVPLLLG  10
                                    10

   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
    → Modified Residue (blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
  x → Chemical Group (purple background, 'x', labelled with number + name, e.g. ACE or NH2)
  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (3, 6)

Asymmetric Unit

(-) CATH Domains  (2, 6)

Asymmetric Unit
(-)
Class: Alpha Beta (26913)
(-)
Class: Mainly Beta (13760)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 2CLR)

(-) Gene Ontology  (142, 179)

Asymmetric Unit(hide GO term definitions)
Chain A,D   (1A02_HUMAN | P01892)
molecular function
    GO:0042608    T cell receptor binding    Interacting selectively and non-covalently with a T cell receptor, the antigen-recognizing receptor on the surface of T cells.
    GO:0046977    TAP binding    Interacting selectively and non-covalently with TAP protein, transporter associated with antigen processing protein. TAP protein is a heterodimeric peptide transporter consisting of the subunits TAP1 and TAP2.
    GO:0030881    beta-2-microglobulin binding    Interacting selectively and non-covalently with beta-2-microglobulin.
    GO:0042605    peptide antigen binding    Interacting selectively and non-covalently with an antigen peptide.
    GO:0005515    protein binding    Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
    GO:0005102    receptor binding    Interacting selectively and non-covalently with one or more specific sites on a receptor molecule, a macromolecule that undergoes combination with a hormone, neurotransmitter, drug or intracellular messenger to initiate a change in cell function.
biological process
    GO:0019731    antibacterial humoral response    An immune response against bacteria mediated through a body fluid. Examples of this process are the antibacterial humoral responses in Mus musculus and Drosophila melanogaster.
    GO:0019882    antigen processing and presentation    The process in which an antigen-presenting cell expresses antigen (peptide or lipid) on its cell surface in association with an MHC protein complex.
    GO:0019885    antigen processing and presentation of endogenous peptide antigen via MHC class I    The process in which an antigen-presenting cell expresses a peptide antigen of endogenous origin on its cell surface in association with an MHC class I protein complex. The peptide antigen is typically, but not always, processed from a whole protein. Class I here refers to classical class I molecules.
    GO:0002486    antigen processing and presentation of endogenous peptide antigen via MHC class I via ER pathway, TAP-independent    The process in which an antigen-presenting cell expresses a peptide antigen of endogenous origin on its cell surface in association with an MHC class I protein complex following intracellular transport via a TAP-independent ER pathway. The peptide is typically a fragment of a larger endogenous protein which has been degraded within the cell and becomes associated with the MHC class I molecule in the ER following transport from the cytosol via a TAP-independent pathway. Class I here refers to classical class I molecules.
    GO:0002479    antigen processing and presentation of exogenous peptide antigen via MHC class I, TAP-dependent    The process in which an antigen-presenting cell expresses a peptide antigen of exogenous origin on its cell surface in association with an MHC class I protein complex following intracellular transport via a TAP (transporter associated with antigen processing) pathway. The peptide is typically a fragment of a larger exogenous protein which has been degraded within the cell and is dependent on TAP transport from the cytosol to ER for association with the MHC class I molecule. Class I here refers to classical class I molecules.
    GO:0002480    antigen processing and presentation of exogenous peptide antigen via MHC class I, TAP-independent    The process in which an antigen-presenting cell expresses a peptide antigen of exogenous origin on its cell surface in association with an MHC class I protein complex following intracellular transport via a pathway not requiring TAP (transporter associated with antigen processing). The peptide is typically a fragment of a larger exogenous protein which has been degraded within the cell. Class I here refers to classical class I molecules.
    GO:0002474    antigen processing and presentation of peptide antigen via MHC class I    The process in which an antigen-presenting cell expresses a peptide antigen on its cell surface in association with an MHC class I protein complex. Class I here refers to classical class I molecules.
    GO:0050830    defense response to Gram-positive bacterium    Reactions triggered in response to the presence of a Gram-positive bacterium that act to protect the cell or organism.
    GO:0006955    immune response    Any immune system process that functions in the calibrated response of an organism to a potential internal or invasive threat.
    GO:0002376    immune system process    Any process involved in the development or functioning of the immune system, an organismal system for calibrated responses to potential internal or invasive threats.
    GO:0060333    interferon-gamma-mediated signaling pathway    A series of molecular signals initiated by the binding of interferon-gamma to a receptor on the surface of a cell, and ending with regulation of a downstream cellular process, e.g. transcription. Interferon gamma is the only member of the type II interferon found so far.
    GO:2001187    positive regulation of CD8-positive, alpha-beta T cell activation    Any process that activates or increases the frequency, rate or extent of CD8-positive, alpha-beta T cell activation.
    GO:2000566    positive regulation of CD8-positive, alpha-beta T cell proliferation    Any process that activates or increases the frequency, rate or extent of CD8-positive, alpha-beta T cell proliferation.
    GO:0002726    positive regulation of T cell cytokine production    Any process that activates or increases the frequency, rate, or extent of T cell cytokine production.
    GO:0001916    positive regulation of T cell mediated cytotoxicity    Any process that activates or increases the frequency, rate or extent of T cell mediated cytotoxicity.
    GO:0032729    positive regulation of interferon-gamma production    Any process that activates or increases the frequency, rate, or extent of interferon-gamma production. Interferon-gamma is also known as type II interferon.
    GO:2000568    positive regulation of memory T cell activation    Any process that activates or increases the frequency, rate or extent of memory T cell activation.
    GO:0050690    regulation of defense response to virus by virus    Any viral process that modulates the frequency, rate, or extent of the antiviral response of the host cell or organism.
    GO:0050776    regulation of immune response    Any process that modulates the frequency, rate or extent of the immune response, the immunological reaction of an organism to an immunogenic stimulus.
    GO:0060337    type I interferon signaling pathway    A series of molecular signals initiated by the binding of a type I interferon to a receptor on the surface of a cell, and ending with regulation of a downstream cellular process, e.g. transcription. Type I interferons include the interferon-alpha, beta, delta, episilon, zeta, kappa, tau, and omega gene families.
    GO:0016032    viral process    A multi-organism process in which a virus is a participant. The other participant is the host. Includes infection of a host cell, replication of the viral genome, and assembly of progeny virus particles. In some cases the viral genetic material may integrate into the host genome and only subsequently, under particular circumstances, 'complete' its life cycle.
cellular component
    GO:0012507    ER to Golgi transport vesicle membrane    The lipid bilayer surrounding a vesicle transporting substances from the endoplasmic reticulum to the Golgi.
    GO:0005794    Golgi apparatus    A compound membranous cytoplasmic organelle of eukaryotic cells, consisting of flattened, ribosome-free vesicles arranged in a more or less regular stack. The Golgi apparatus differs from the endoplasmic reticulum in often having slightly thicker membranes, appearing in sections as a characteristic shallow semicircle so that the convex side (cis or entry face) abuts the endoplasmic reticulum, secretory vesicles emerging from the concave side (trans or exit face). In vertebrate cells there is usually one such organelle, while in invertebrates and plants, where they are known usually as dictyosomes, there may be several scattered in the cytoplasm. The Golgi apparatus processes proteins produced on the ribosomes of the rough endoplasmic reticulum; such processing includes modification of the core oligosaccharides of glycoproteins, and the sorting and packaging of proteins for transport to a variety of cellular locations. Three different regions of the Golgi are now recognized both in terms of structure and function: cis, in the vicinity of the cis face, trans, in the vicinity of the trans face, and medial, lying between the cis and trans regions.
    GO:0005797    Golgi medial cisterna    The middle Golgi cisterna (or cisternae).
    GO:0000139    Golgi membrane    The lipid bilayer surrounding any of the compartments of the Golgi apparatus.
    GO:0042612    MHC class I protein complex    A transmembrane protein complex composed of a MHC class I alpha chain and an invariant beta2-microglobin chain, and with or without a bound peptide antigen. Class I here refers to classical class I molecules.
    GO:0009986    cell surface    The external part of the cell wall and/or plasma membrane.
    GO:0031901    early endosome membrane    The lipid bilayer surrounding an early endosome.
    GO:0005783    endoplasmic reticulum    The irregular network of unit membranes, visible only by electron microscopy, that occurs in the cytoplasm of many eukaryotic cells. The membranes form a complex meshwork of tubular channels, which are often expanded into slitlike cavities called cisternae. The ER takes two forms, rough (or granular), with ribosomes adhering to the outer surface, and smooth (with no ribosomes attached).
    GO:0070971    endoplasmic reticulum exit site    An endoplasmic reticulum part at which COPII-coated vesicles are produced.
    GO:0071556    integral component of lumenal side of endoplasmic reticulum membrane    The component of the endoplasmic reticulum membrane consisting of the gene products that penetrate only the lumenal side of the membrane.
    GO:0016021    integral component of membrane    The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0030670    phagocytic vesicle membrane    The lipid bilayer surrounding a phagocytic vesicle.
    GO:0005886    plasma membrane    The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.

Chain B,E   (B2MG_HUMAN | P61769)
molecular function
    GO:0042802    identical protein binding    Interacting selectively and non-covalently with an identical protein or proteins.
    GO:0005515    protein binding    Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
biological process
    GO:0033077    T cell differentiation in thymus    The process in which a precursor cell type acquires the specialized features of a T cell via a differentiation pathway dependent upon transit through the thymus.
    GO:0019731    antibacterial humoral response    An immune response against bacteria mediated through a body fluid. Examples of this process are the antibacterial humoral responses in Mus musculus and Drosophila melanogaster.
    GO:0019885    antigen processing and presentation of endogenous peptide antigen via MHC class I    The process in which an antigen-presenting cell expresses a peptide antigen of endogenous origin on its cell surface in association with an MHC class I protein complex. The peptide antigen is typically, but not always, processed from a whole protein. Class I here refers to classical class I molecules.
    GO:0002479    antigen processing and presentation of exogenous peptide antigen via MHC class I, TAP-dependent    The process in which an antigen-presenting cell expresses a peptide antigen of exogenous origin on its cell surface in association with an MHC class I protein complex following intracellular transport via a TAP (transporter associated with antigen processing) pathway. The peptide is typically a fragment of a larger exogenous protein which has been degraded within the cell and is dependent on TAP transport from the cytosol to ER for association with the MHC class I molecule. Class I here refers to classical class I molecules.
    GO:0002480    antigen processing and presentation of exogenous peptide antigen via MHC class I, TAP-independent    The process in which an antigen-presenting cell expresses a peptide antigen of exogenous origin on its cell surface in association with an MHC class I protein complex following intracellular transport via a pathway not requiring TAP (transporter associated with antigen processing). The peptide is typically a fragment of a larger exogenous protein which has been degraded within the cell. Class I here refers to classical class I molecules.
    GO:0002481    antigen processing and presentation of exogenous protein antigen via MHC class Ib, TAP-dependent    The process in which an antigen-presenting cell expresses a peptide antigen of exogenous origin on its cell surface in association with an MHC class Ib protein complex following intracellular transport via a TAP (transporter associated with antigen processing) pathway. The peptide is typically a fragment of a larger exogenous protein which has been degraded within the cell and is dependent on TAP transport from the cytosol to ER for association with the MHC class Ib molecule. Class Ib here refers to non-classical class I molecules, such as those of the HLA-E gene family.
    GO:0002474    antigen processing and presentation of peptide antigen via MHC class I    The process in which an antigen-presenting cell expresses a peptide antigen on its cell surface in association with an MHC class I protein complex. Class I here refers to classical class I molecules.
    GO:0044267    cellular protein metabolic process    The chemical reactions and pathways involving a specific protein, rather than of proteins in general, occurring at the level of an individual cell. Includes cellular protein modification.
    GO:0071281    cellular response to iron ion    Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an iron ion stimulus.
    GO:0071222    cellular response to lipopolysaccharide    Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a lipopolysaccharide stimulus; lipopolysaccharide is a major component of the cell wall of gram-negative bacteria.
    GO:0050829    defense response to Gram-negative bacterium    Reactions triggered in response to the presence of a Gram-negative bacterium that act to protect the cell or organism.
    GO:0050830    defense response to Gram-positive bacterium    Reactions triggered in response to the presence of a Gram-positive bacterium that act to protect the cell or organism.
    GO:0006955    immune response    Any immune system process that functions in the calibrated response of an organism to a potential internal or invasive threat.
    GO:0002376    immune system process    Any process involved in the development or functioning of the immune system, an organismal system for calibrated responses to potential internal or invasive threats.
    GO:0045087    innate immune response    Innate immune responses are defense responses mediated by germline encoded components that directly recognize components of potential pathogens.
    GO:0060333    interferon-gamma-mediated signaling pathway    A series of molecular signals initiated by the binding of interferon-gamma to a receptor on the surface of a cell, and ending with regulation of a downstream cellular process, e.g. transcription. Interferon gamma is the only member of the type II interferon found so far.
    GO:0055072    iron ion homeostasis    Any process involved in the maintenance of an internal steady state of iron ions within an organism or cell.
    GO:0010977    negative regulation of neuron projection development    Any process that decreases the rate, frequency or extent of neuron projection development. Neuron projection development is the process whose specific outcome is the progression of a neuron projection over time, from its formation to the mature structure. A neuron projection is any process extending from a neural cell, such as axons or dendrites (collectively called neurites).
    GO:1900121    negative regulation of receptor binding    Any process that stops, prevents or reduces the frequency, rate or extent of a protein or other molecule binding to a receptor.
    GO:0002726    positive regulation of T cell cytokine production    Any process that activates or increases the frequency, rate, or extent of T cell cytokine production.
    GO:0001916    positive regulation of T cell mediated cytotoxicity    Any process that activates or increases the frequency, rate or extent of T cell mediated cytotoxicity.
    GO:1904434    positive regulation of ferrous iron binding    Any process that activates or increases the frequency, rate or extent of ferrous iron binding.
    GO:0032092    positive regulation of protein binding    Any process that activates or increases the frequency, rate or extent of protein binding.
    GO:1900122    positive regulation of receptor binding    Any process that activates or increases the frequency, rate or extent of a protein or other molecule binding to a receptor.
    GO:0048260    positive regulation of receptor-mediated endocytosis    Any process that activates or increases the frequency, rate or extent of receptor mediated endocytosis, the uptake of external materials by cells, utilizing receptors to ensure specificity of transport.
    GO:1904437    positive regulation of transferrin receptor binding    Any process that activates or increases the frequency, rate or extent of transferrin receptor binding.
    GO:0042026    protein refolding    The process carried out by a cell that restores the biological activity of an unfolded or misfolded protein, using helper proteins such as chaperones.
    GO:0050690    regulation of defense response to virus by virus    Any viral process that modulates the frequency, rate, or extent of the antiviral response of the host cell or organism.
    GO:0050776    regulation of immune response    Any process that modulates the frequency, rate or extent of the immune response, the immunological reaction of an organism to an immunogenic stimulus.
    GO:0003254    regulation of membrane depolarization    Any process that modulates the rate, frequency or extent of membrane depolarization. Membrane depolarization is the process in which membrane potential changes in the depolarizing direction from the resting potential, usually from negative to positive.
    GO:0046686    response to cadmium ion    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a cadmium (Cd) ion stimulus.
    GO:0042493    response to drug    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a drug stimulus. A drug is a substance used in the diagnosis, treatment or prevention of a disease.
    GO:0002237    response to molecule of bacterial origin    Any process that results in a change in state or activity of an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a stimulus by molecules of bacterial origin such as peptides derived from bacterial flagellin.
    GO:0001895    retina homeostasis    A tissue homeostatic process involved in the maintenance of an internal equilibrium within the retina of the eye, including control of cellular proliferation and death and control of metabolic function.
cellular component
    GO:0012507    ER to Golgi transport vesicle membrane    The lipid bilayer surrounding a vesicle transporting substances from the endoplasmic reticulum to the Golgi.
    GO:0005794    Golgi apparatus    A compound membranous cytoplasmic organelle of eukaryotic cells, consisting of flattened, ribosome-free vesicles arranged in a more or less regular stack. The Golgi apparatus differs from the endoplasmic reticulum in often having slightly thicker membranes, appearing in sections as a characteristic shallow semicircle so that the convex side (cis or entry face) abuts the endoplasmic reticulum, secretory vesicles emerging from the concave side (trans or exit face). In vertebrate cells there is usually one such organelle, while in invertebrates and plants, where they are known usually as dictyosomes, there may be several scattered in the cytoplasm. The Golgi apparatus processes proteins produced on the ribosomes of the rough endoplasmic reticulum; such processing includes modification of the core oligosaccharides of glycoproteins, and the sorting and packaging of proteins for transport to a variety of cellular locations. Three different regions of the Golgi are now recognized both in terms of structure and function: cis, in the vicinity of the cis face, trans, in the vicinity of the trans face, and medial, lying between the cis and trans regions.
    GO:0000139    Golgi membrane    The lipid bilayer surrounding any of the compartments of the Golgi apparatus.
    GO:1990712    HFE-transferrin receptor complex    A protein complex containing at least HFE and a transferrin receptor (either TFR1/TFRC or TFR2), proposed to play a role in the sensing of transferrin-bound Fe (Fe2-Tf) on the plasma membrane to regulate hepcidin transcription.
    GO:0042612    MHC class I protein complex    A transmembrane protein complex composed of a MHC class I alpha chain and an invariant beta2-microglobin chain, and with or without a bound peptide antigen. Class I here refers to classical class I molecules.
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
    GO:0031905    early endosome lumen    The volume enclosed by the membrane of an early endosome.
    GO:0031901    early endosome membrane    The lipid bilayer surrounding an early endosome.
    GO:0005788    endoplasmic reticulum lumen    The volume enclosed by the membranes of the endoplasmic reticulum.
    GO:0009897    external side of plasma membrane    The leaflet of the plasma membrane that faces away from the cytoplasm and any proteins embedded or anchored in it or attached to its surface.
    GO:0070062    extracellular exosome    A vesicle that is released into the extracellular region by fusion of the limiting endosomal membrane of a multivesicular body with the plasma membrane. Extracellular exosomes, also simply called exosomes, have a diameter of about 40-100 nm.
    GO:0005576    extracellular region    The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.
    GO:0005615    extracellular space    That part of a multicellular organism outside the cells proper, usually taken to be outside the plasma membranes, and occupied by fluid.
    GO:0005925    focal adhesion    Small region on the surface of a cell that anchors the cell to the extracellular matrix and that forms a point of termination of actin filaments.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0030670    phagocytic vesicle membrane    The lipid bilayer surrounding a phagocytic vesicle.
    GO:0005886    plasma membrane    The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.

Chain C,F   (CALR_HUMAN | P27797)
molecular function
    GO:0003677    DNA binding    Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
    GO:0050681    androgen receptor binding    Interacting selectively and non-covalently with an androgen receptor.
    GO:0005509    calcium ion binding    Interacting selectively and non-covalently with calcium ions (Ca2+).
    GO:0030246    carbohydrate binding    Interacting selectively and non-covalently with any carbohydrate, which includes monosaccharides, oligosaccharides and polysaccharides as well as substances derived from monosaccharides by reduction of the carbonyl group (alditols), by oxidation of one or more hydroxy groups to afford the corresponding aldehydes, ketones, or carboxylic acids, or by replacement of one or more hydroxy group(s) by a hydrogen atom. Cyclitols are generally not regarded as carbohydrates.
    GO:0051087    chaperone binding    Interacting selectively and non-covalently with a chaperone protein, a class of proteins that bind to nascent or unfolded polypeptides and ensure correct folding or transport.
    GO:0001849    complement component C1q binding    Interacting selectively and non-covalently with the C1q component of the classical complement cascade.
    GO:0042562    hormone binding    Interacting selectively and non-covalently with any hormone, naturally occurring substances secreted by specialized cells that affect the metabolism or behavior of other cells possessing functional receptors for the hormone.
    GO:0005178    integrin binding    Interacting selectively and non-covalently with an integrin.
    GO:0005506    iron ion binding    Interacting selectively and non-covalently with iron (Fe) ions.
    GO:0003729    mRNA binding    Interacting selectively and non-covalently with messenger RNA (mRNA), an intermediate molecule between DNA and protein. mRNA includes UTR and coding sequences, but does not contain introns.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0042277    peptide binding    Interacting selectively and non-covalently with peptides, any of a group of organic compounds comprising two or more amino acids linked by peptide bonds.
    GO:0005515    protein binding    Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
    GO:0044183    protein binding involved in protein folding    Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules) that contributes to the process of protein folding.
    GO:0031625    ubiquitin protein ligase binding    Interacting selectively and non-covalently with a ubiquitin protein ligase enzyme, any of the E3 proteins.
    GO:0051082    unfolded protein binding    Interacting selectively and non-covalently with an unfolded protein.
    GO:0008270    zinc ion binding    Interacting selectively and non-covalently with zinc (Zn) ions.
biological process
    GO:0036500    ATF6-mediated unfolded protein response    A series of molecular signals mediated by the endoplasmic reticulum membrane stress sensor ATF6 (activating transcription factor 6). Begins with activation of ATF6 in response to endoplasmic reticulum (ER) stress, and ends with regulation of a downstream cellular process, e.g. transcription. Under conditions of endoplasmic reticulum stress, ATF6 translocates to the Golgi where it is processed by proteases to release a cytoplasmic domain (ATF6f), which operates as a transcriptional activator of many genes required to restore folding capacity.
    GO:0002474    antigen processing and presentation of peptide antigen via MHC class I    The process in which an antigen-presenting cell expresses a peptide antigen on its cell surface in association with an MHC class I protein complex. Class I here refers to classical class I molecules.
    GO:0055007    cardiac muscle cell differentiation    The process in which a cardiac muscle precursor cell acquires specialized features of a cardiac muscle cell. Cardiac muscle cells are striated muscle cells that are responsible for heart contraction.
    GO:0007050    cell cycle arrest    A regulatory process that halts progression through the cell cycle during one of the normal phases (G1, S, G2, M).
    GO:0006874    cellular calcium ion homeostasis    Any process involved in the maintenance of an internal steady state of calcium ions at the level of a cell.
    GO:0071285    cellular response to lithium ion    Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a lithium (Li+) ion stimulus.
    GO:0071310    cellular response to organic substance    Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an organic substance stimulus.
    GO:0090398    cellular senescence    A cell aging process stimulated in response to cellular stress, whereby normal cells lose the ability to divide through irreversible cell cycle arrest.
    GO:0061077    chaperone-mediated protein folding    The process of inhibiting aggregation and assisting in the covalent and noncovalent assembly of single chain polypeptides or multisubunit complexes into the correct tertiary structure that is dependent on interaction with a chaperone.
    GO:0030866    cortical actin cytoskeleton organization    A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of actin-based cytoskeletal structures in the cell cortex, i.e. just beneath the plasma membrane.
    GO:0042921    glucocorticoid receptor signaling pathway    Any series of molecular signals generated as a consequence of a glucocorticoid binding to its receptor.
    GO:0033144    negative regulation of intracellular steroid hormone receptor signaling pathway    Any process that stops, prevents, or reduces the frequency, rate or extent of the activity of any intracellular steroid hormone receptor signaling pathway.
    GO:0045665    negative regulation of neuron differentiation    Any process that stops, prevents, or reduces the frequency, rate or extent of neuron differentiation.
    GO:0048387    negative regulation of retinoic acid receptor signaling pathway    Any process that stops, prevents, or reduces the frequency, rate or extent of retinoic acid receptor signaling pathway activity.
    GO:0000122    negative regulation of transcription from RNA polymerase II promoter    Any process that stops, prevents, or reduces the frequency, rate or extent of transcription from an RNA polymerase II promoter.
    GO:0045892    negative regulation of transcription, DNA-templated    Any process that stops, prevents, or reduces the frequency, rate or extent of cellular DNA-templated transcription.
    GO:0017148    negative regulation of translation    Any process that stops, prevents, or reduces the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of proteins by the translation of mRNA or circRNA.
    GO:0002502    peptide antigen assembly with MHC class I protein complex    The binding of a peptide to the antigen binding groove of an MHC class I protein complex. Class I here refers to classical class I molecules.
    GO:0045740    positive regulation of DNA replication    Any process that activates or increases the frequency, rate or extent of DNA replication.
    GO:0045787    positive regulation of cell cycle    Any process that activates or increases the rate or extent of progression through the cell cycle.
    GO:0008284    positive regulation of cell proliferation    Any process that activates or increases the rate or extent of cell proliferation.
    GO:2000510    positive regulation of dendritic cell chemotaxis    Any process that activates or increases the frequency, rate or extent of dendritic cell chemotaxis.
    GO:0010628    positive regulation of gene expression    Any process that increases the frequency, rate or extent of gene expression. Gene expression is the process in which a gene's coding sequence is converted into a mature gene product or products (proteins or RNA). This includes the production of an RNA transcript as well as any processing to produce a mature RNA product or an mRNA or circRNA (for protein-coding genes) and the translation of that mRNA or circRNA into protein. Protein maturation is included when required to form an active form of a product from an inactive precursor form.
    GO:0050766    positive regulation of phagocytosis    Any process that activates or increases the frequency, rate or extent of phagocytosis.
    GO:1900026    positive regulation of substrate adhesion-dependent cell spreading    Any process that activates or increases the frequency, rate or extent of substrate adhesion-dependent cell spreading.
    GO:0006611    protein export from nucleus    The directed movement of a protein from the nucleus into the cytoplasm.
    GO:0006457    protein folding    The process of assisting in the covalent and noncovalent assembly of single chain polypeptides or multisubunit complexes into the correct tertiary structure.
    GO:0034975    protein folding in endoplasmic reticulum    A protein folding process that takes place in the endoplasmic reticulum (ER). Secreted, plasma membrane and organelle proteins are folded in the ER, assisted by chaperones and foldases (protein disulphide isomerases), and additional factors required for optimal folding (ATP, Ca2+ and an oxidizing environment to allow disulfide bond formation).
    GO:0034504    protein localization to nucleus    A process in which a protein transports or maintains the localization of another protein to the nucleus.
    GO:0022417    protein maturation by protein folding    The process of assisting in the covalent and noncovalent assembly of single chain polypeptides or multisubunit complexes into the correct tertiary structure that results in the attainment of the full functional capacity of a protein.
    GO:0050821    protein stabilization    Any process involved in maintaining the structure and integrity of a protein and preventing it from degradation or aggregation.
    GO:0006898    receptor-mediated endocytosis    An endocytosis process in which cell surface receptors ensure specificity of transport. A specific receptor on the cell surface binds tightly to the extracellular macromolecule (the ligand) that it recognizes; the plasma-membrane region containing the receptor-ligand complex then undergoes endocytosis, forming a transport vesicle containing the receptor-ligand complex and excluding most other plasma-membrane proteins. Receptor-mediated endocytosis generally occurs via clathrin-coated pits and vesicles.
    GO:0042981    regulation of apoptotic process    Any process that modulates the occurrence or rate of cell death by apoptotic process.
    GO:0040020    regulation of meiotic nuclear division    Any process that modulates the frequency, rate or extent of meiotic nuclear division, the process in which the nucleus of a diploid cell divides twice forming four haploid cells, one or more of which usually function as gametes.
    GO:0006355    regulation of transcription, DNA-templated    Any process that modulates the frequency, rate or extent of cellular DNA-templated transcription.
    GO:0042493    response to drug    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a drug stimulus. A drug is a substance used in the diagnosis, treatment or prevention of a disease.
    GO:0032355    response to estradiol    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of stimulus by estradiol, a C18 steroid hormone hydroxylated at C3 and C17 that acts as a potent estrogen.
    GO:0010033    response to organic substance    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an organic substance stimulus.
    GO:0033574    response to testosterone    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a testosterone stimulus.
    GO:0051208    sequestering of calcium ion    The process of binding or confining calcium ions such that they are separated from other components of a biological system.
    GO:0007283    spermatogenesis    The process of formation of spermatozoa, including spermatocytogenesis and spermiogenesis.
cellular component
    GO:0005794    Golgi apparatus    A compound membranous cytoplasmic organelle of eukaryotic cells, consisting of flattened, ribosome-free vesicles arranged in a more or less regular stack. The Golgi apparatus differs from the endoplasmic reticulum in often having slightly thicker membranes, appearing in sections as a characteristic shallow semicircle so that the convex side (cis or entry face) abuts the endoplasmic reticulum, secretory vesicles emerging from the concave side (trans or exit face). In vertebrate cells there is usually one such organelle, while in invertebrates and plants, where they are known usually as dictyosomes, there may be several scattered in the cytoplasm. The Golgi apparatus processes proteins produced on the ribosomes of the rough endoplasmic reticulum; such processing includes modification of the core oligosaccharides of glycoproteins, and the sorting and packaging of proteins for transport to a variety of cellular locations. Three different regions of the Golgi are now recognized both in terms of structure and function: cis, in the vicinity of the cis face, trans, in the vicinity of the trans face, and medial, lying between the cis and trans regions.
    GO:0042824    MHC class I peptide loading complex    A large, multisubunit complex which consists of the MHC class I-beta 2 microglobulin dimer, the transporter associated with antigen presentation (TAP), tapasin (an MHC-encoded membrane protein), the chaperone calreticulin and the thiol oxidoreductase ERp57. Functions in the assembly of peptides with newly synthesized MHC class I molecules.
    GO:0001669    acrosomal vesicle    A structure in the head of a spermatozoon that contains acid hydrolases, and is concerned with the breakdown of the outer membrane of the ovum during fertilization. It lies just beneath the plasma membrane and is derived from the lysosome.
    GO:0009986    cell surface    The external part of the cell wall and/or plasma membrane.
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
    GO:0005829    cytosol    The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
    GO:0071682    endocytic vesicle lumen    The volume enclosed by the membrane of an endocytic vesicle.
    GO:0005783    endoplasmic reticulum    The irregular network of unit membranes, visible only by electron microscopy, that occurs in the cytoplasm of many eukaryotic cells. The membranes form a complex meshwork of tubular channels, which are often expanded into slitlike cavities called cisternae. The ER takes two forms, rough (or granular), with ribosomes adhering to the outer surface, and smooth (with no ribosomes attached).
    GO:0005788    endoplasmic reticulum lumen    The volume enclosed by the membranes of the endoplasmic reticulum.
    GO:0009897    external side of plasma membrane    The leaflet of the plasma membrane that faces away from the cytoplasm and any proteins embedded or anchored in it or attached to its surface.
    GO:0070062    extracellular exosome    A vesicle that is released into the extracellular region by fusion of the limiting endosomal membrane of a multivesicular body with the plasma membrane. Extracellular exosomes, also simply called exosomes, have a diameter of about 40-100 nm.
    GO:0031012    extracellular matrix    A structure lying external to one or more cells, which provides structural support for cells or tissues.
    GO:0005576    extracellular region    The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.
    GO:0005615    extracellular space    That part of a multicellular organism outside the cells proper, usually taken to be outside the plasma membranes, and occupied by fluid.
    GO:0005925    focal adhesion    Small region on the surface of a cell that anchors the cell to the extracellular matrix and that forms a point of termination of actin filaments.
    GO:0071556    integral component of lumenal side of endoplasmic reticulum membrane    The component of the endoplasmic reticulum membrane consisting of the gene products that penetrate only the lumenal side of the membrane.
    GO:0005622    intracellular    The living contents of a cell; the matter contained within (but not including) the plasma membrane, usually taken to exclude large vacuoles and masses of secretory or ingested material. In eukaryotes it includes the nucleus and cytoplasm.
    GO:0043231    intracellular membrane-bounded organelle    Organized structure of distinctive morphology and function, bounded by a single or double lipid bilayer membrane and occurring within the cell. Includes the nucleus, mitochondria, plastids, vacuoles, and vesicles. Excludes the plasma membrane.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0005634    nucleus    A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
    GO:0048471    perinuclear region of cytoplasm    Cytoplasm situated near, or occurring around, the nucleus.
    GO:0005844    polysome    A multiribosomal structure representing a linear array of ribosomes held together by messenger RNA. They represent the active complexes in cellular protein synthesis and are able to incorporate amino acids into polypeptides both in vivo and in vitro.
    GO:0043234    protein complex    A stable macromolecular complex composed (only) of two or more polypeptide subunits along with any covalently attached molecules (such as lipid anchors or oligosaccharide) or non-protein prosthetic groups (such as nucleotides or metal ions). Prosthetic group in this context refers to a tightly bound cofactor. The component polypeptide subunits may be identical.
    GO:0005578    proteinaceous extracellular matrix    A layer consisting mainly of proteins (especially collagen) and glycosaminoglycans (mostly as proteoglycans) that forms a sheet underlying or overlying cells such as endothelial and epithelial cells. The proteins are secreted by cells in the vicinity. An example of this component is found in Mus musculus.
    GO:0016529    sarcoplasmic reticulum    A fine reticular network of membrane-limited elements that pervades the sarcoplasm of a muscle cell; continuous over large portions of the cell and with the nuclear envelope; that part of the endoplasmic reticulum specialized for calcium release, uptake and storage.
    GO:0033018    sarcoplasmic reticulum lumen    The volume enclosed by the membranes of the sarcoplasmic reticulum.
    GO:0005790    smooth endoplasmic reticulum    The smooth endoplasmic reticulum (smooth ER or SER) has no ribosomes attached to it. The smooth ER is the recipient of the proteins synthesized in the rough ER. Those proteins to be exported are passed to the Golgi complex, the resident proteins are returned to the rough ER and the lysosomal proteins after phosphorylation of their mannose residues are passed to the lysosomes. Glycosylation of the glycoproteins also continues. The smooth ER is the site of synthesis of lipids, including the phospholipids. The membranes of the smooth ER also contain enzymes that catalyze a series of reactions to detoxify both lipid-soluble drugs and harmful products of metabolism. Large quantities of certain compounds such as phenobarbital cause an increase in the amount of the smooth ER.

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 Related Entries

(-) Entries Sharing at Least One Protein Chain (UniProt ID)

UniProtKB/Swiss-Prot
        1A02_HUMAN | P018921akj 1ao7 1aqd 1b0g 1b0r 1bd2 1duy 1duz 1eey 1eez 1hhg 1hhh 1hhi 1hhj 1hhk 1hla 1i1f 1i1y 1i4f 1i7r 1i7t 1i7u 1im3 1jf1 1jht 1lp9 1oga 1p7q 1qew 1qr1 1qrn 1qse 1qsf 1s8d 1s9w 1s9x 1s9y 1t1w 1t1x 1t1y 1t1z 1t20 1t21 1t22 1tvb 1tvh 1ur7 2av1 2av7 2bnq 2bnr 2c7u 2f53 2f54 2git 2gj6 2gt9 2gtw 2gtz 2guo 2j8u 2jcc 2p5e 2p5w 2pye 2uwe 2v2w 2v2x 2vlj 2vlk 2vll 2vlr 2x4n 2x4o 2x4p 2x4q 2x4r 2x4s 2x4t 2x4u 2x70 3bgm 3bh8 3bh9 3bhb 3d25 3d39 3d3v 3fqn 3fqr 3fqt 3fqu 3fqw 3fqx 3ft2 3ft3 3ft4 3giv 3gjf 3gsn 3gso 3gsq 3gsr 3gsu 3gsv 3gsw 3gsx 3h7b 3h9h 3h9s 3hae 3hla 3hpj 3i6g 3i6k 3ixa 3kla 3mgo 3mgt 3mr9 3mrb 3mrc 3mrd 3mre 3mrf 3mrg 3mrh 3mri 3mrj 3mrk 3mrl 3mrm 3mrn 3mro 3mrp 3mrq 3mrr 3myj 3o3a 3o3b 3o3d 3o3e 3o4l 3pwj 3pwl 3pwn 3pwp 3qdg 3qdj 3qdm 3qeq 3qfd 3qfj 3rew 3to2 3utq 3uts 3utt 3v5d 3v5h 3v5k 4e5x 4emz 4en2 4eup 4ftv 4gkn 4gks 4i4w 4jfd 4jfe 4jff 4jfo 4jfp 4jfq 4k7f 4l29 4l3c 4l3e 4mnq 4nnx 4nny 4no0 4no2 4no3 4no5 4ov5 4qok 4u6x 4u6y 4uq3 4wj5 4wuu 4zez 5c07 5c08 5c09 5c0a 5c0b 5c0c 5c0d 5c0e 5c0f 5c0g 5c0i 5c0j 5d2l 5d2n 5d9s 5ddh 5e00 5e6i 5e9d 5enw 5eot 5eu3 5eu4 5eu5 5eu6 5euo 5f7d 5f9j 5fa3 5fa4 5fdw 5hhm 5hhn 5hho 5hhp 5hhq 5hyj 5iro 5isz 5jhd 5jzi 5men 5meo 5mep 5meq 5mer 5n1y 5swq
        B2MG_HUMAN | P617691a1m 1a1n 1a1o 1a6z 1a9b 1a9e 1agb 1agc 1agd 1age 1agf 1akj 1ao7 1b0g 1b0r 1bd2 1c16 1ce6 1cg9 1de4 1duy 1duz 1e27 1e28 1eey 1eez 1efx 1exu 1gzp 1gzq 1hhg 1hhh 1hhi 1hhj 1hhk 1hla 1hsa 1hsb 1i1f 1i1y 1i4f 1i7r 1i7t 1i7u 1im3 1im9 1jf1 1jgd 1jge 1jht 1jnj 1k5n 1kpr 1ktl 1lds 1lp9 1m05 1m6o 1mhe 1mi5 1n2r 1of2 1oga 1ogt 1onq 1p7q 1py4 1q94 1qew 1qlf 1qqd 1qr1 1qrn 1qse 1qsf 1qvo 1r3h 1s8d 1s9w 1s9x 1s9y 1sys 1syv 1t1w 1t1x 1t1y 1t1z 1t20 1t21 1t22 1tmc 1tvb 1tvh 1uqs 1ur7 1uxs 1uxw 1vgk 1w0v 1w0w 1w72 1x7q 1xh3 1xr8 1xr9 1xz0 1ydp 1ypz 1zhk 1zhl 1zs8 1zsd 1zt4 1zvs 2a83 2ak4 2av1 2av7 2axf 2axg 2bck 2bnq 2bnr 2bsr 2bss 2bst 2bvo 2bvp 2bvq 2c7u 2cii 2cik 2d31 2d4d 2d4f 2dyp 2e8d 2esv 2f53 2f54 2f74 2f8o 2fyy 2fz3 2git 2gj6 2gt9 2gtw 2gtz 2guo 2h26 2h6p 2hjk 2hjl 2hla 2hn7 2j8u 2jcc 2nw3 2nx5 2p5e 2p5w 2po6 2pye 2rfx 2uwe 2v2w 2v2x 2vb5 2vlj 2vlk 2vll 2vlr 2x4n 2x4o 2x4p 2x4q 2x4r 2x4s 2x4t 2x4u 2x70 2x89 2xks 2xku 2xpg 2ypk 2ypl 2yxf 2z9t 3am8 3b3i 3b6s 3bgm 3bh8 3bh9 3bhb 3bo8 3bp4 3bp7 3bvn 3bw9 3bwa 3bxn 3bze 3bzf 3c9n 3cdg 3cii 3ciq 3czf 3d18 3d25 3d2u 3d39 3d3v 3dbx 3dhj 3dhm 3dtx 3dx6 3dx7 3dx8 3dxa 3ekc 3ffc 3fqn 3fqr 3fqt 3fqu 3fqw 3fqx 3ft2 3ft3 3ft4 3giv 3gjf 3gsn 3gso 3gsq 3gsr 3gsu 3gsv 3gsw 3gsx 3h7b 3h9h 3h9s 3hae 3hcv 3hg1 3hla 3hpj 3huj 3i6g 3i6k 3i6l 3ib4 3ixa 3jts 3kla 3kpl 3kpm 3kpn 3kpo 3kpp 3kpq 3kpr 3kps 3kww 3kxf 3kyn 3kyo 3l3d 3l3g 3l3i 3l3j 3l3k 3lkn 3lko 3lkp 3lkq 3lkr 3lks 3ln4 3ln5 3low 3loz 3lv3 3m17 3m1b 3mgo 3mgt 3mr9 3mrb 3mrc 3mrd 3mre 3mrf 3mrg 3mrh 3mri 3mrj 3mrk 3mrl 3mrm 3mrn 3mro 3mrp 3mrq 3mrr 3mv7 3mv8 3mv9 3myj 3myz 3mzt 3na4 3nfn 3o3a 3o3b 3o3d 3o3e 3o4l 3ov6 3ox8 3oxr 3oxs 3pwj 3pwl 3pwn 3pwp 3qda 3qdg 3qdj 3qdm 3qeq 3qfd 3qfj 3qzw 3rew 3rl1 3rl2 3rwj 3s6c 3sdx 3sjv 3skm 3sko 3spv 3t8x 3tid 3tie 3tlr 3tm6 3to2 3tzv 3u0p 3upr 3utq 3uts 3utt 3v5d 3v5h 3v5k 3vcl 3vfm 3vfn 3vfo 3vfp 3vfr 3vfs 3vft 3vfu 3vfv 3vfw 3vh8 3vri 3vrj 3vwj 3vwk 3vxm 3vxn 3vxo 3vxp 3vxr 3vxs 3vxu 3w0w 3w39 3wl9 3wlb 3wuw 3x11 3x12 3x13 3x14 4e0k 4e0l 4e5x 4en3 4eup 4f7m 4f7p 4f7t 4ftv 4fxl 4g8g 4g8i 4g9d 4g9f 4gkn 4gks 4gup 4hkj 4hwz 4hx1 4i48 4i4w 4jfd 4jfe 4jff 4jfo 4jfp 4jfq 4jqv 4jqx 4jrx 4jry 4k71 4k7f 4kdt 4l29 4l3c 4l3e 4l4t 4l4v 4lcw 4lcy 4lhu 4lnr 4m8v 4mj5 4mj6 4mji 4mnq 4n0f 4n0u 4n8v 4nnx 4nny 4no0 4no2 4no3 4no5 4nqc 4nqd 4nqe 4nqv 4nqx 4nt6 4o2c 4o2e 4o2f 4ono 4pj5 4pj7 4pj8 4pj9 4pja 4pjb 4pjc 4pjd 4pje 4pjf 4pjg 4pjh 4pji 4pjx 4pr5 4pra 4prb 4prd 4pre 4prh 4pri 4prn 4prp 4qok 4qrp 4qrq 4qrr 4qrs 4qrt 4qru 4r9h 4ra3 4rah 4rmq 4rmr 4rms 4rmt 4rmu 4rmv 4rmw 4u1h 4u1i 4u1j 4u1k 4u1l 4u1m 4u1n 4u1s 4u6x 4u6y 4uq2 4uq3 4wc8 4wdi 4wj5 4wo4 4wu5 4wu7 4wuu 4ww2 4wwk 4x0s 4x6c 4x6d 4x6e 4x6f 4xxc 4z76 4z77 4z78 4zez 5b38 5b39 5bjt 5brz 5bs0 5bxf 5c07 5c08 5c09 5c0a 5c0b 5c0c 5c0d 5c0e 5c0f 5c0g 5c0i 5c0j 5c9j 5cfh 5cka 5ckg 5cs7 5csb 5csg 5d2l 5d2n 5d5m 5d7i 5d7j 5d7l 5d9s 5ddh 5def 5deg 5e00 5e6i 5e9d 5enw 5eo0 5eo1 5eot 5eu3 5eu4 5eu5 5eu6 5euo 5f7d 5f9j 5fa3 5fa4 5fdw 5gr7 5gsb 5gsr 5gsv 5gsx 5hga 5hgb 5hgd 5hgh 5hhm 5hhn 5hho 5hhp 5hhq 5hyj 5ib1 5ib2 5ib3 5ib4 5ib5 5ieh 5iek 5im7 5inc 5ind 5iro 5isz 5iue 5j1a 5jhd 5jzi 5knm 5l2j 5l2k 5men 5meo 5mep 5meq 5mer 5n1y 5swq 5t6w 5t6x 5t6y 5t6z 5t70 5u16 5u17 5u1r 5u2v 5u6q 5u72 5v5l 5v5m 5vgd 5vge 5xos 5xot 5xov
        CALR_HUMAN | P277973dow 3pos 3pow 5lk5 5v90

(-) Related Entries Specified in the PDB File

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