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(-) Description

Title :  IL-21:IL21R COMPLEX
 
Authors :  O. J. Hamming, L. Kang, A. Svenson, J. L. Karlsen, H. Rahbek-Nielsen, S. R. Paludan, S. A. Hjort, K. Bondensgaard, R. Hartmann
Date :  18 Aug 11  (Deposition) - 15 Feb 12  (Release) - 20 Feb 13  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.80
Chains :  Asym. Unit :  A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P
Biol. Unit 1:  A,B  (1x)
Biol. Unit 2:  C,D  (1x)
Biol. Unit 3:  E,F  (1x)
Biol. Unit 4:  G,H  (1x)
Biol. Unit 5:  I,J  (1x)
Biol. Unit 6:  K,L  (1x)
Biol. Unit 7:  M,N  (1x)
Biol. Unit 8:  O,P  (1x)
Keywords :  Class I Cytokine, Class I Cytokine Receptor, Sugarbridge, Fibronectin Domain, Signaling, Cytokine-Cytokine Receptor Complex (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  O. J. Hamming, L. Kang, A. Svensson, J. L. Karlsen, H. Rahbek-Nielsen, S. R. Paludan, S. A. Hjorth, K. Bondensgaard, R. Hartmann
The Crystal Structure Of The Interleukin 21 Receptor Bound To Interleukin 21 Reveals That A Sugar Chain Interacting With The Wsxws Motif Is An Integral Part Of The Interleukin 21 Receptor.
J. Biol. Chem. 2012
PubMed-ID: 22235133  |  Reference-DOI: 10.1074/JBC.M111.311084

(-) Compounds

Molecule 1 - INTERLEUKIN-21 RECEPTOR
    ChainsA, C, E, G, I, K, M, O
    EngineeredYES
    Expression SystemHOMO SAPIENS
    Expression System Cell LineHEK293
    Expression System Taxid9606
    FragmentINTERLEUKIN 21 RECEPTOR EXTRACELLULAR DOMAIN
    GeneIL21R, NILR, UNQ3121/PRO10273
    MutationYES
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606
    SynonymIL-21 RECEPTOR, IL-21R, NOVEL INTERLEUKIN RECEPTOR
 
Molecule 2 - INTERLEUKIN-21
    ChainsB, D, F, H, J, L, N, P
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System Taxid562
    FragmentUNP RESIDUES 23-155
    GeneIL21
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606
    SynonymIL-21, ZA11

 Structural Features

(-) Chains, Units

  12345678910111213141516
Asymmetric Unit ABCDEFGHIJKLMNOP
Biological Unit 1 (1x)AB              
Biological Unit 2 (1x)  CD            
Biological Unit 3 (1x)    EF          
Biological Unit 4 (1x)      GH        
Biological Unit 5 (1x)        IJ      
Biological Unit 6 (1x)          KL    
Biological Unit 7 (1x)            MN  
Biological Unit 8 (1x)              OP

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (7, 104)

Asymmetric Unit (7, 104)
No.NameCountTypeFull Name
1BMA8Ligand/IonBETA-D-MANNOSE
2FUC1Ligand/IonALPHA-L-FUCOSE
3FUL7Ligand/IonBETA-L-FUCOSE
4MAN29Ligand/IonALPHA-D-MANNOSE
5NAG16Ligand/IonN-ACETYL-D-GLUCOSAMINE
6NI4Ligand/IonNICKEL (II) ION
7SO439Ligand/IonSULFATE ION
Biological Unit 1 (5, 12)
No.NameCountTypeFull Name
1BMA1Ligand/IonBETA-D-MANNOSE
2FUC-1Ligand/IonALPHA-L-FUCOSE
3FUL1Ligand/IonBETA-L-FUCOSE
4MAN4Ligand/IonALPHA-D-MANNOSE
5NAG2Ligand/IonN-ACETYL-D-GLUCOSAMINE
6NI-1Ligand/IonNICKEL (II) ION
7SO44Ligand/IonSULFATE ION
Biological Unit 2 (5, 14)
No.NameCountTypeFull Name
1BMA1Ligand/IonBETA-D-MANNOSE
2FUC-1Ligand/IonALPHA-L-FUCOSE
3FUL1Ligand/IonBETA-L-FUCOSE
4MAN4Ligand/IonALPHA-D-MANNOSE
5NAG2Ligand/IonN-ACETYL-D-GLUCOSAMINE
6NI-1Ligand/IonNICKEL (II) ION
7SO46Ligand/IonSULFATE ION
Biological Unit 3 (5, 12)
No.NameCountTypeFull Name
1BMA1Ligand/IonBETA-D-MANNOSE
2FUC-1Ligand/IonALPHA-L-FUCOSE
3FUL1Ligand/IonBETA-L-FUCOSE
4MAN4Ligand/IonALPHA-D-MANNOSE
5NAG2Ligand/IonN-ACETYL-D-GLUCOSAMINE
6NI-1Ligand/IonNICKEL (II) ION
7SO44Ligand/IonSULFATE ION
Biological Unit 4 (5, 14)
No.NameCountTypeFull Name
1BMA1Ligand/IonBETA-D-MANNOSE
2FUC-1Ligand/IonALPHA-L-FUCOSE
3FUL1Ligand/IonBETA-L-FUCOSE
4MAN4Ligand/IonALPHA-D-MANNOSE
5NAG2Ligand/IonN-ACETYL-D-GLUCOSAMINE
6NI-1Ligand/IonNICKEL (II) ION
7SO46Ligand/IonSULFATE ION
Biological Unit 5 (5, 12)
No.NameCountTypeFull Name
1BMA1Ligand/IonBETA-D-MANNOSE
2FUC-1Ligand/IonALPHA-L-FUCOSE
3FUL1Ligand/IonBETA-L-FUCOSE
4MAN4Ligand/IonALPHA-D-MANNOSE
5NAG2Ligand/IonN-ACETYL-D-GLUCOSAMINE
6NI-1Ligand/IonNICKEL (II) ION
7SO44Ligand/IonSULFATE ION
Biological Unit 6 (5, 13)
No.NameCountTypeFull Name
1BMA1Ligand/IonBETA-D-MANNOSE
2FUC-1Ligand/IonALPHA-L-FUCOSE
3FUL1Ligand/IonBETA-L-FUCOSE
4MAN3Ligand/IonALPHA-D-MANNOSE
5NAG2Ligand/IonN-ACETYL-D-GLUCOSAMINE
6NI-1Ligand/IonNICKEL (II) ION
7SO46Ligand/IonSULFATE ION
Biological Unit 7 (5, 11)
No.NameCountTypeFull Name
1BMA1Ligand/IonBETA-D-MANNOSE
2FUC1Ligand/IonALPHA-L-FUCOSE
3FUL-1Ligand/IonBETA-L-FUCOSE
4MAN3Ligand/IonALPHA-D-MANNOSE
5NAG2Ligand/IonN-ACETYL-D-GLUCOSAMINE
6NI-1Ligand/IonNICKEL (II) ION
7SO44Ligand/IonSULFATE ION
Biological Unit 8 (5, 12)
No.NameCountTypeFull Name
1BMA1Ligand/IonBETA-D-MANNOSE
2FUC-1Ligand/IonALPHA-L-FUCOSE
3FUL1Ligand/IonBETA-L-FUCOSE
4MAN3Ligand/IonALPHA-D-MANNOSE
5NAG2Ligand/IonN-ACETYL-D-GLUCOSAMINE
6NI-1Ligand/IonNICKEL (II) ION
7SO45Ligand/IonSULFATE ION

(-) Sites  (102, 102)

Asymmetric Unit (102, 102)
No.NameEvidenceResiduesDescription
001AC1SOFTWARETHR A:194 , TRP A:195 , MAN A:311 , MAN A:312BINDING SITE FOR RESIDUE MAN A 301
002AC2SOFTWAREGLU A:42 , ALA A:43 , THR A:44 , SER A:45BINDING SITE FOR RESIDUE SO4 A 303
003AC3SOFTWARETRP A:21 , ASN A:22 , SER A:26 , GLN A:82 , TYR M:86BINDING SITE FOR RESIDUE SO4 A 304
004AC4SOFTWARECYS A:1 , GLN A:88BINDING SITE FOR RESIDUE SO4 A 305
005AC5SOFTWARECYS A:46 , SER A:47BINDING SITE FOR RESIDUE SO4 A 306
006AC6SOFTWARETHR A:59 , NAG A:308BINDING SITE FOR RESIDUE FUL A 307
007AC7SOFTWAREASN A:54 , THR A:56 , FUL A:307 , NAG A:309BINDING SITE FOR RESIDUE NAG A 308
008AC8SOFTWAREHIS A:57 , NAG A:308 , BMA A:310BINDING SITE FOR RESIDUE NAG A 309
009AC9SOFTWARENAG A:309 , MAN A:311BINDING SITE FOR RESIDUE BMA A 310
010BC1SOFTWAREARG A:154 , MAN A:301 , BMA A:310 , MAN A:312BINDING SITE FOR RESIDUE MAN A 311
011BC2SOFTWAREARG A:154 , ARG A:182 , TRP A:198 , MAN A:301 , MAN A:311 , MAN A:313BINDING SITE FOR RESIDUE MAN A 312
012BC3SOFTWAREGLN A:140 , ARG A:142 , ARG A:154 , TRP A:198 , MAN A:312BINDING SITE FOR RESIDUE MAN A 313
013BC4SOFTWAREGLU C:42 , ALA C:43 , THR C:44 , SER C:45BINDING SITE FOR RESIDUE SO4 C 301
014BC5SOFTWARETRP C:21 , ASN C:22 , SER C:26 , GLN C:82 , ASP K:81 , GLN K:82 , TYR K:86BINDING SITE FOR RESIDUE SO4 C 302
015BC6SOFTWARELYS C:132 , ASN D:22BINDING SITE FOR RESIDUE SO4 C 303
016BC7SOFTWARELYS C:132 , ASN F:25BINDING SITE FOR RESIDUE SO4 C 304
017BC8SOFTWARECYS C:1 , GLN C:88BINDING SITE FOR RESIDUE SO4 C 305
018BC9SOFTWARESER C:47BINDING SITE FOR RESIDUE SO4 C 306
019CC1SOFTWAREARG C:182 , THR C:194 , TRP C:195 , MAN C:313BINDING SITE FOR RESIDUE MAN C 307
020CC2SOFTWAREILE C:17 , THR C:59 , NAG C:309BINDING SITE FOR RESIDUE FUL C 308
021CC3SOFTWAREASN C:54 , FUL C:308 , NAG C:310BINDING SITE FOR RESIDUE NAG C 309
022CC4SOFTWAREHIS C:57 , NAG C:309 , BMA C:311BINDING SITE FOR RESIDUE NAG C 310
023CC5SOFTWARENAG C:310 , MAN C:312BINDING SITE FOR RESIDUE BMA C 311
024CC6SOFTWAREBMA C:311 , MAN C:313BINDING SITE FOR RESIDUE MAN C 312
025CC7SOFTWAREARG C:154 , ARG C:182 , MAN C:307 , MAN C:312 , MAN C:314BINDING SITE FOR RESIDUE MAN C 313
026CC8SOFTWAREGLN C:140 , ARG C:142 , ARG C:154 , TRP C:198 , MAN C:313BINDING SITE FOR RESIDUE MAN C 314
027CC9SOFTWARETHR E:59 , NAG E:303BINDING SITE FOR RESIDUE FUL E 301
028DC1SOFTWAREARG E:182 , THR E:194 , TRP E:195 , MAN E:308BINDING SITE FOR RESIDUE MAN E 302
029DC2SOFTWAREASN E:54 , FUL E:301 , NAG E:304BINDING SITE FOR RESIDUE NAG E 303
030DC3SOFTWAREHIS E:57 , NAG E:303 , BMA E:306BINDING SITE FOR RESIDUE NAG E 304
031DC4SOFTWAREHIS E:63BINDING SITE FOR RESIDUE NI E 305
032DC5SOFTWARENAG E:304 , MAN E:307BINDING SITE FOR RESIDUE BMA E 306
033DC6SOFTWAREBMA E:306 , MAN E:308BINDING SITE FOR RESIDUE MAN E 307
034DC7SOFTWAREARG E:154 , ARG E:182 , MAN E:302 , MAN E:307 , MAN E:309BINDING SITE FOR RESIDUE MAN E 308
035DC8SOFTWAREGLN E:140 , ARG E:154 , TRP E:198 , MAN E:308BINDING SITE FOR RESIDUE MAN E 309
036DC9SOFTWAREGLU E:42 , ALA E:43 , THR E:44 , SER E:45BINDING SITE FOR RESIDUE SO4 E 310
037EC1SOFTWARETRP E:21 , ASN E:22 , SER E:26 , GLN E:82 , ASP I:81 , TYR I:86BINDING SITE FOR RESIDUE SO4 E 311
038EC2SOFTWARECYS E:1 , GLN E:88BINDING SITE FOR RESIDUE SO4 E 312
039EC3SOFTWARESER E:47BINDING SITE FOR RESIDUE SO4 E 313
040EC4SOFTWAREARG G:182 , THR G:194 , TRP G:195 , MAN G:311 , MAN G:312BINDING SITE FOR RESIDUE MAN G 301
041EC5SOFTWAREGLU G:42 , ALA G:43 , THR G:44 , SER G:45BINDING SITE FOR RESIDUE SO4 G 303
042EC6SOFTWARETRP G:21 , ASN G:22 , SER G:26 , GLN G:82 , TYR O:86BINDING SITE FOR RESIDUE SO4 G 304
043EC7SOFTWARECYS G:1 , GLN G:88 , SER O:87BINDING SITE FOR RESIDUE SO4 G 305
044EC8SOFTWARESER G:47BINDING SITE FOR RESIDUE SO4 G 306
045EC9SOFTWAREASN G:54 , THR G:59 , NAG G:308BINDING SITE FOR RESIDUE FUL G 307
046FC1SOFTWAREASN G:54 , THR G:56 , FUL G:307 , NAG G:309BINDING SITE FOR RESIDUE NAG G 308
047FC2SOFTWAREHIS G:57 , NAG G:308 , BMA G:310BINDING SITE FOR RESIDUE NAG G 309
048FC3SOFTWARENAG G:309 , MAN G:311BINDING SITE FOR RESIDUE BMA G 310
049FC4SOFTWAREMAN G:301 , BMA G:310 , MAN G:312BINDING SITE FOR RESIDUE MAN G 311
050FC5SOFTWAREARG G:154 , ARG G:182 , TRP G:198 , MAN G:301 , MAN G:311 , MAN G:313BINDING SITE FOR RESIDUE MAN G 312
051FC6SOFTWAREGLN G:140 , ARG G:142 , ARG G:154 , TRP G:198 , MAN G:312BINDING SITE FOR RESIDUE MAN G 313
052FC7SOFTWAREHIS H:89 , LEU H:91 , THR H:92BINDING SITE FOR RESIDUE SO4 H 201
053FC8SOFTWAREGLU H:36 , ASP H:37 , LYS H:117BINDING SITE FOR RESIDUE SO4 H 202
054FC9SOFTWAREARG I:182 , THR I:194 , TRP I:195 , MAN I:311BINDING SITE FOR RESIDUE MAN I 301
055GC1SOFTWAREGLU I:42 , ALA I:43 , THR I:44 , SER I:45BINDING SITE FOR RESIDUE SO4 I 302
056GC2SOFTWAREASP E:81 , TYR E:86 , TRP I:21 , ASN I:22 , SER I:26 , GLN I:82BINDING SITE FOR RESIDUE SO4 I 303
057GC3SOFTWARECYS I:1 , GLN I:88BINDING SITE FOR RESIDUE SO4 I 304
058GC4SOFTWARESER I:47BINDING SITE FOR RESIDUE SO4 I 305
059GC5SOFTWAREASN I:54 , THR I:59 , NAG I:307BINDING SITE FOR RESIDUE FUL I 306
060GC6SOFTWAREASN I:54 , FUL I:306 , NAG I:308BINDING SITE FOR RESIDUE NAG I 307
061GC7SOFTWAREILE I:17 , HIS I:57 , NAG I:307 , BMA I:309BINDING SITE FOR RESIDUE NAG I 308
062GC8SOFTWARENAG I:308 , MAN I:310BINDING SITE FOR RESIDUE BMA I 309
063GC9SOFTWAREARG I:154 , BMA I:309 , MAN I:311BINDING SITE FOR RESIDUE MAN I 310
064HC1SOFTWAREARG I:154 , ARG I:182 , MAN I:301 , MAN I:310 , MAN I:312BINDING SITE FOR RESIDUE MAN I 311
065HC2SOFTWAREARG I:142 , MAN I:311BINDING SITE FOR RESIDUE MAN I 312
066HC3SOFTWARETHR K:59 , NAG K:307BINDING SITE FOR RESIDUE FUL K 301
067HC4SOFTWAREARG K:182 , THR K:194 , TRP K:195 , MAN K:311 , MAN K:312BINDING SITE FOR RESIDUE MAN K 302
068HC5SOFTWAREGLU K:42 , ALA K:43 , THR K:44 , SER K:45BINDING SITE FOR RESIDUE SO4 K 303
069HC6SOFTWAREASP C:81 , TYR C:86 , TRP K:21 , ASN K:22 , SER K:26 , ASP K:81 , GLN K:82BINDING SITE FOR RESIDUE SO4 K 304
070HC7SOFTWARELYS K:132 , ARG K:162BINDING SITE FOR RESIDUE SO4 K 305
071HC8SOFTWARECYS K:1 , GLN K:88BINDING SITE FOR RESIDUE SO4 K 306
072HC9SOFTWAREASN K:54 , FUL K:301 , NAG K:308BINDING SITE FOR RESIDUE NAG K 307
073IC1SOFTWAREHIS K:57 , NAG K:307 , BMA K:310BINDING SITE FOR RESIDUE NAG K 308
074IC2SOFTWARESER K:47BINDING SITE FOR RESIDUE SO4 K 309
075IC3SOFTWARENAG K:308 , MAN K:311BINDING SITE FOR RESIDUE BMA K 310
076IC4SOFTWAREMAN K:302 , BMA K:310 , MAN K:312BINDING SITE FOR RESIDUE MAN K 311
077IC5SOFTWAREARG K:154 , ARG K:182 , TRP K:198 , MAN K:302 , MAN K:311BINDING SITE FOR RESIDUE MAN K 312
078IC6SOFTWARELYS K:132 , GLN L:19 , ASN L:22BINDING SITE FOR RESIDUE SO4 L 201
079IC7SOFTWAREGLU M:197 , NAG M:302BINDING SITE FOR RESIDUE FUC M 301
080IC8SOFTWAREASN M:54 , FUC M:301 , NAG M:303BINDING SITE FOR RESIDUE NAG M 302
081IC9SOFTWAREHIS M:57 , NAG M:302 , BMA M:308BINDING SITE FOR RESIDUE NAG M 303
082JC1SOFTWAREARG M:182 , THR M:194 , TRP M:195 , MAN M:311BINDING SITE FOR RESIDUE MAN M 304
083JC2SOFTWAREGLU M:42 , ALA M:43 , THR M:44 , SER M:45BINDING SITE FOR RESIDUE SO4 M 305
084JC3SOFTWAREASP A:81 , TYR A:86 , TRP M:21 , ASN M:22 , SER M:26 , ASP M:81 , GLN M:82BINDING SITE FOR RESIDUE SO4 M 306
085JC4SOFTWARECYS M:1BINDING SITE FOR RESIDUE SO4 M 307
086JC5SOFTWARENAG M:303 , MAN M:310BINDING SITE FOR RESIDUE BMA M 308
087JC6SOFTWARESER M:47BINDING SITE FOR RESIDUE SO4 M 309
088JC7SOFTWAREBMA M:308 , MAN M:311BINDING SITE FOR RESIDUE MAN M 310
089JC8SOFTWAREARG M:154 , ARG M:182 , TRP M:198 , MAN M:304 , MAN M:310BINDING SITE FOR RESIDUE MAN M 311
090JC9SOFTWAREASN O:54 , THR O:59 , NAG O:302BINDING SITE FOR RESIDUE FUL O 301
091KC1SOFTWAREASN O:54 , FUL O:301 , NAG O:303BINDING SITE FOR RESIDUE NAG O 302
092KC2SOFTWAREHIS O:57 , NAG O:302 , BMA O:304BINDING SITE FOR RESIDUE NAG O 303
093KC3SOFTWARENAG O:303 , MAN O:305BINDING SITE FOR RESIDUE BMA O 304
094KC4SOFTWAREBMA O:304 , MAN O:306BINDING SITE FOR RESIDUE MAN O 305
095KC5SOFTWAREARG O:154 , ARG O:182 , TRP O:198 , MAN O:305 , MAN O:307BINDING SITE FOR RESIDUE MAN O 306
096KC6SOFTWAREARG O:182 , THR O:194 , TRP O:195 , MAN O:306BINDING SITE FOR RESIDUE MAN O 307
097KC7SOFTWAREHIS O:63BINDING SITE FOR RESIDUE NI O 308
098KC8SOFTWAREGLU O:42 , ALA O:43 , THR O:44 , SER O:45BINDING SITE FOR RESIDUE SO4 O 309
099KC9SOFTWARETYR G:86 , TRP O:21 , ASN O:22 , SER O:26 , ASP O:81 , GLN O:82BINDING SITE FOR RESIDUE SO4 O 310
100LC1SOFTWARELYS O:132 , ARG O:162BINDING SITE FOR RESIDUE SO4 O 311
101LC2SOFTWARECYS O:1BINDING SITE FOR RESIDUE SO4 O 312
102LC3SOFTWARESER O:45 , CYS O:46 , SER O:47BINDING SITE FOR RESIDUE SO4 O 313

(-) SS Bonds  (38, 38)

Asymmetric Unit
No.Residues
1A:1 -A:90
2A:6 -A:16
3A:46 -A:62
4B:42 -B:93
5B:49 -B:96
6C:1 -C:90
7C:6 -C:16
8C:46 -C:62
9D:42 -D:93
10D:49 -D:96
11E:1 -E:90
12E:6 -E:16
13E:46 -E:62
14F:42 -F:93
15F:49 -F:96
16G:1 -G:90
17G:6 -G:16
18G:46 -G:62
19H:42 -H:93
20H:49 -H:96
21I:1 -I:90
22I:6 -I:16
23I:46 -I:62
24J:42 -J:93
25J:49 -J:96
26K:6 -K:16
27K:46 -K:62
28L:42 -L:93
29L:49 -L:96
30M:1 -M:90
31M:6 -M:16
32M:46 -M:62
33N:42 -N:93
34N:49 -N:96
35O:1 -O:90
36O:6 -O:16
37P:42 -P:93
38P:49 -P:96

(-) Cis Peptide Bonds  (15, 15)

Asymmetric Unit
No.Residues
1Asp A:9 -Tyr A:10
2Asp C:9 -Tyr C:10
3Asp E:9 -Tyr E:10
4Ser E:158 -Val E:159
5Arg E:172 -Lys E:173
6Asp G:9 -Tyr G:10
7Asp I:9 -Tyr I:10
8Asp K:9 -Tyr K:10
9Asp M:9 -Tyr M:10
10Arg M:172 -Lys M:173
11Glu N:39 -Thr N:40
12Asp O:9 -Tyr O:10
13Ser O:158 -Val O:159
14Val O:159 -Asp O:160
15Gly P:61 -Asn P:62

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (3, 24)

Asymmetric Unit (3, 24)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_071292L49PIL21_HUMANDisease (CVID11)  ---B/D/F/H/J/L/N/PL27P
2UniProtVAR_014360R191CIL21R_HUMANPolymorphism3093370A/C/E/G/I/K/M/OR172C
3UniProtVAR_069899R201LIL21R_HUMANDisease (IL21RID)397514685A/C/E/G/I/K/M/OR182L

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)
Biological Unit 1 (3, 3)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_071292L49PIL21_HUMANDisease (CVID11)  ---BL27P
2UniProtVAR_014360R191CIL21R_HUMANPolymorphism3093370AR172C
3UniProtVAR_069899R201LIL21R_HUMANDisease (IL21RID)397514685AR182L

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)
Biological Unit 2 (3, 3)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_071292L49PIL21_HUMANDisease (CVID11)  ---DL27P
2UniProtVAR_014360R191CIL21R_HUMANPolymorphism3093370CR172C
3UniProtVAR_069899R201LIL21R_HUMANDisease (IL21RID)397514685CR182L

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)
Biological Unit 3 (3, 3)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_071292L49PIL21_HUMANDisease (CVID11)  ---FL27P
2UniProtVAR_014360R191CIL21R_HUMANPolymorphism3093370ER172C
3UniProtVAR_069899R201LIL21R_HUMANDisease (IL21RID)397514685ER182L

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)
Biological Unit 4 (3, 3)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_071292L49PIL21_HUMANDisease (CVID11)  ---HL27P
2UniProtVAR_014360R191CIL21R_HUMANPolymorphism3093370GR172C
3UniProtVAR_069899R201LIL21R_HUMANDisease (IL21RID)397514685GR182L

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)
Biological Unit 5 (3, 3)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_071292L49PIL21_HUMANDisease (CVID11)  ---JL27P
2UniProtVAR_014360R191CIL21R_HUMANPolymorphism3093370IR172C
3UniProtVAR_069899R201LIL21R_HUMANDisease (IL21RID)397514685IR182L

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)
Biological Unit 6 (3, 3)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_071292L49PIL21_HUMANDisease (CVID11)  ---LL27P
2UniProtVAR_014360R191CIL21R_HUMANPolymorphism3093370KR172C
3UniProtVAR_069899R201LIL21R_HUMANDisease (IL21RID)397514685KR182L

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)
Biological Unit 7 (3, 3)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_071292L49PIL21_HUMANDisease (CVID11)  ---NL27P
2UniProtVAR_014360R191CIL21R_HUMANPolymorphism3093370MR172C
3UniProtVAR_069899R201LIL21R_HUMANDisease (IL21RID)397514685MR182L

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)
Biological Unit 8 (3, 3)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_071292L49PIL21_HUMANDisease (CVID11)  ---PL27P
2UniProtVAR_014360R191CIL21R_HUMANPolymorphism3093370OR172C
3UniProtVAR_069899R201LIL21R_HUMANDisease (IL21RID)397514685OR182L

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

(-) PROSITE Motifs  (2, 16)

Asymmetric Unit (2, 16)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1FN3PS50853 Fibronectin type-III domain profile.IL21R_HUMAN119-228
 
 
 
 
 
 
 
  8A:100-208
C:100-209
E:100-207
G:100-209
I:100-209
K:100-209
M:100-208
O:100-208
2HEMATOPO_REC_S_F1PS01355 Short hematopoietin receptor family 1 signature.IL21R_HUMAN190-223
 
 
 
 
 
 
 
  8A:171-204
C:171-204
E:171-204
G:171-204
I:171-204
K:171-204
M:171-204
O:171-204
Biological Unit 1 (2, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1FN3PS50853 Fibronectin type-III domain profile.IL21R_HUMAN119-228
 
 
 
 
 
 
 
  1A:100-208
-
-
-
-
-
-
-
2HEMATOPO_REC_S_F1PS01355 Short hematopoietin receptor family 1 signature.IL21R_HUMAN190-223
 
 
 
 
 
 
 
  1A:171-204
-
-
-
-
-
-
-
Biological Unit 2 (2, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1FN3PS50853 Fibronectin type-III domain profile.IL21R_HUMAN119-228
 
 
 
 
 
 
 
  1-
C:100-209
-
-
-
-
-
-
2HEMATOPO_REC_S_F1PS01355 Short hematopoietin receptor family 1 signature.IL21R_HUMAN190-223
 
 
 
 
 
 
 
  1-
C:171-204
-
-
-
-
-
-
Biological Unit 3 (2, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1FN3PS50853 Fibronectin type-III domain profile.IL21R_HUMAN119-228
 
 
 
 
 
 
 
  1-
-
E:100-207
-
-
-
-
-
2HEMATOPO_REC_S_F1PS01355 Short hematopoietin receptor family 1 signature.IL21R_HUMAN190-223
 
 
 
 
 
 
 
  1-
-
E:171-204
-
-
-
-
-
Biological Unit 4 (2, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1FN3PS50853 Fibronectin type-III domain profile.IL21R_HUMAN119-228
 
 
 
 
 
 
 
  1-
-
-
G:100-209
-
-
-
-
2HEMATOPO_REC_S_F1PS01355 Short hematopoietin receptor family 1 signature.IL21R_HUMAN190-223
 
 
 
 
 
 
 
  1-
-
-
G:171-204
-
-
-
-
Biological Unit 5 (2, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1FN3PS50853 Fibronectin type-III domain profile.IL21R_HUMAN119-228
 
 
 
 
 
 
 
  1-
-
-
-
I:100-209
-
-
-
2HEMATOPO_REC_S_F1PS01355 Short hematopoietin receptor family 1 signature.IL21R_HUMAN190-223
 
 
 
 
 
 
 
  1-
-
-
-
I:171-204
-
-
-
Biological Unit 6 (2, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1FN3PS50853 Fibronectin type-III domain profile.IL21R_HUMAN119-228
 
 
 
 
 
 
 
  1-
-
-
-
-
K:100-209
-
-
2HEMATOPO_REC_S_F1PS01355 Short hematopoietin receptor family 1 signature.IL21R_HUMAN190-223
 
 
 
 
 
 
 
  1-
-
-
-
-
K:171-204
-
-
Biological Unit 7 (2, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1FN3PS50853 Fibronectin type-III domain profile.IL21R_HUMAN119-228
 
 
 
 
 
 
 
  1-
-
-
-
-
-
M:100-208
-
2HEMATOPO_REC_S_F1PS01355 Short hematopoietin receptor family 1 signature.IL21R_HUMAN190-223
 
 
 
 
 
 
 
  1-
-
-
-
-
-
M:171-204
-
Biological Unit 8 (2, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1FN3PS50853 Fibronectin type-III domain profile.IL21R_HUMAN119-228
 
 
 
 
 
 
 
  1-
-
-
-
-
-
-
O:100-208
2HEMATOPO_REC_S_F1PS01355 Short hematopoietin receptor family 1 signature.IL21R_HUMAN190-223
 
 
 
 
 
 
 
  1-
-
-
-
-
-
-
O:171-204

(-) Exons   (0, 0)

(no "Exon" information available for 3TGX)

(-) 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:208
 aligned with IL21R_HUMAN | Q9HBE5 from UniProtKB/Swiss-Prot  Length:538

    Alignment length:208
                                    29        39        49        59        69        79        89        99       109       119       129       139       149       159       169       179       189       199       209       219        
          IL21R_HUMAN    20 CPDLVCYTDYLQTVICILEMWNLHPSTLTLTWQDQYEELKDEATSCSLHRSAHNATHATYTCHMDVFHFMADDIFSVNITDQSGNYSQECGSFLLAESIKPAPPFNVTVTFSGQYNISWRSDYEDPAFYMLKGKLQYELQYRNRGDPWAVSPRRKLISVDSRSVSLLPLEFRKDSSYELQVRAGPMPGSSYQGTWSEWSDPVIFQTQS 227
               SCOP domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeee....eeeeeee.......eeeeee............eeeeeeeee...eeeeeee.hhhhh....eeeeeee......eeeeeeee.hhh......eeeeeee...eeeeeehhhhhhhhhhhh..eeeeeeeee.........eeeee.....eeee.........eeeeeeeeee................eeee... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------C---------L-------------------------- SAPs(SNPs)
                PROSITE (1) ---------------------------------------------------------------------------------------------------FN3  PDB: A:100-208 UniProt: 119-228                                                                          PROSITE (1)
                PROSITE (2) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------HEMATOPO_REC_S_F1  PDB: A:171-204 ---- PROSITE (2)
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3tgx A   1 CPDLVCYTDYLQTVICILEMWNLHPSTLTLTWQDQYEELKDEATSCSLHRSAHNATHATYTCHMDVFHFMADDIFSVQITDQSGQYSQECGSFLLAESIKPAPPFDVTVTFSGQYQISWRSDYEDPAFYMLKGKLQYELQYRNRGDPWAVSPRRKLISVDSRSVSLLPLEFRKDSSYELQVRAGPMPGSSYQGTWSEWSDPVIFQTQS 208
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200        

Chain B from PDB  Type:PROTEIN  Length:115
 aligned with IL21_HUMAN | Q9HBE4 from UniProtKB/Swiss-Prot  Length:155

    Alignment length:122
                                    33        43        53        63        73        83        93       103       113       123       133       143  
           IL21_HUMAN    24 GQDRHMIRMRQLIDIVDQLKNYVNDLVPEFLPAPEDVETNCEWSAFSCFQKAQLKSANTGNNERIINVSIKKLKRKPPSTNAGRRQKHRLTCPSCDSYEKKPPKEFLERFKSLLQKMIHQHL 145
               SCOP domains d3tgxb_ B: Interleukin-21 (IL-21)                                                                                          SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhhhhhhhhhhhhhhhhhhhhh....ee.....hhhhhhhhhhhhhhh........hhhhhhhhhhhhhh......-------............eehhhhhhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) -------------------------P------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------- Transcript
                 3tgx B   2 GQDRHMIRMRQLIDIVDQLKNYVNDLVPEFLPAPEDVETNCEWSAFSCFQKAQLKSANTGNNERIINVSIKKLKRKPPST-------HRLTCPSCDSYEKKPPKEFLERFKSLLQKMIHQHL 123
                                    11        21        31        41        51        61        71        81       |91       101       111       121  
                                                                                                          81      89                                  

Chain C from PDB  Type:PROTEIN  Length:209
 aligned with IL21R_HUMAN | Q9HBE5 from UniProtKB/Swiss-Prot  Length:538

    Alignment length:209
                                    29        39        49        59        69        79        89        99       109       119       129       139       149       159       169       179       189       199       209       219         
          IL21R_HUMAN    20 CPDLVCYTDYLQTVICILEMWNLHPSTLTLTWQDQYEELKDEATSCSLHRSAHNATHATYTCHMDVFHFMADDIFSVNITDQSGNYSQECGSFLLAESIKPAPPFNVTVTFSGQYNISWRSDYEDPAFYMLKGKLQYELQYRNRGDPWAVSPRRKLISVDSRSVSLLPLEFRKDSSYELQVRAGPMPGSSYQGTWSEWSDPVIFQTQSE 228
               SCOP domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeee....eeeeeee.......eeeeee............eeeeeeeee...eeeeeee.hhhhh....eeeeeee......eeeeeeee.hhh......eeeeeee...eeeeeehhhhhhhhhhhh..eeeeeeeee.........eeeee.....eeeehhhhh....eeeeeeeeee................eeee.... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------C---------L--------------------------- SAPs(SNPs)
                PROSITE (1) ---------------------------------------------------------------------------------------------------FN3  PDB: C:100-209 UniProt: 119-228                                                                           PROSITE (1)
                PROSITE (2) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------HEMATOPO_REC_S_F1  PDB: C:171-204 ----- PROSITE (2)
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3tgx C   1 CPDLVCYTDYLQTVICILEMWNLHPSTLTLTWQDQYEELKDEATSCSLHRSAHNATHATYTCHMDVFHFMADDIFSVQITDQSGQYSQECGSFLLAESIKPAPPFDVTVTFSGQYQISWRSDYEDPAFYMLKGKLQYELQYRNRGDPWAVSPRRKLISVDSRSVSLLPLEFRKDSSYELQVRAGPMPGSSYQGTWSEWSDPVIFQTQSE 209
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200         

Chain D from PDB  Type:PROTEIN  Length:117
 aligned with IL21_HUMAN | Q9HBE4 from UniProtKB/Swiss-Prot  Length:155

    Alignment length:122
                                    33        43        53        63        73        83        93       103       113       123       133       143  
           IL21_HUMAN    24 GQDRHMIRMRQLIDIVDQLKNYVNDLVPEFLPAPEDVETNCEWSAFSCFQKAQLKSANTGNNERIINVSIKKLKRKPPSTNAGRRQKHRLTCPSCDSYEKKPPKEFLERFKSLLQKMIHQHL 145
               SCOP domains d3tgxd_ D: Interleukin-21 (IL-21)                                                                                          SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhhhhhhhhhhhhhhhhhhhhh....ee........hhhhhhhhhhhh.........hhhhhhhhhhhhh..........-----..........eehhhhhhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) -------------------------P------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------- Transcript
                 3tgx D   2 GQDRHMIRMRQLIDIVDQLKNYVNDLVPEFLPAPEDVETNCEWSAFSCFQKAQLKSANTGNNERIINVSIKKLKRKPPSTNAGR-----LTCPSCDSYEKKPPKEFLERFKSLLQKMIHQHL 123
                                    11        21        31        41        51        61        71        81   |    91       101       111       121  
                                                                                                              85    91                                

Chain E from PDB  Type:PROTEIN  Length:207
 aligned with IL21R_HUMAN | Q9HBE5 from UniProtKB/Swiss-Prot  Length:538

    Alignment length:207
                                    29        39        49        59        69        79        89        99       109       119       129       139       149       159       169       179       189       199       209       219       
          IL21R_HUMAN    20 CPDLVCYTDYLQTVICILEMWNLHPSTLTLTWQDQYEELKDEATSCSLHRSAHNATHATYTCHMDVFHFMADDIFSVNITDQSGNYSQECGSFLLAESIKPAPPFNVTVTFSGQYNISWRSDYEDPAFYMLKGKLQYELQYRNRGDPWAVSPRRKLISVDSRSVSLLPLEFRKDSSYELQVRAGPMPGSSYQGTWSEWSDPVIFQTQ 226
               SCOP domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeee....eeeeeee.......eeeeee............eeeeeeeee...eeeeeee.hhhhh....eeeeeee......eeeeeeee.hhh......eeeeeee...eeeeeehhhhhhhhhhhh..eeeeeeeee.........eeee......eeee..........eeeeeeeee...................... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------C---------L------------------------- SAPs(SNPs)
                PROSITE (1) ---------------------------------------------------------------------------------------------------FN3  PDB: E:100-207 UniProt: 119-228                                                                         PROSITE (1)
                PROSITE (2) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------HEMATOPO_REC_S_F1  PDB: E:171-204 --- PROSITE (2)
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3tgx E   1 CPDLVCYTDYLQTVICILEMWNLHPSTLTLTWQDQYEELKDEATSCSLHRSAHNATHATYTCHMDVFHFMADDIFSVQITDQSGQYSQECGSFLLAESIKPAPPFDVTVTFSGQYQISWRSDYEDPAFYMLKGKLQYELQYRNRGDPWAVSPRRKLISVDSRSVSLLPLEFRKDSSYELQVRAGPMPGSSYQGTWSEWSDPVIFQTQ 207
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       

Chain F from PDB  Type:PROTEIN  Length:113
 aligned with IL21_HUMAN | Q9HBE4 from UniProtKB/Swiss-Prot  Length:155

    Alignment length:122
                                    33        43        53        63        73        83        93       103       113       123       133       143  
           IL21_HUMAN    24 GQDRHMIRMRQLIDIVDQLKNYVNDLVPEFLPAPEDVETNCEWSAFSCFQKAQLKSANTGNNERIINVSIKKLKRKPPSTNAGRRQKHRLTCPSCDSYEKKPPKEFLERFKSLLQKMIHQHL 145
               SCOP domains d3tgxf_ F: Interleukin-21 (IL-21)                                                                                          SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhhhhhhhhhhhhhhhhhhhhh....ee........hhhhhhhhhhhh........hhhhhhhhhhhhhh.......---------...hhhhh.eehhhhhhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) -------------------------P------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------- Transcript
                 3tgx F   2 GQDRHMIRMRQLIDIVDQLKNYVNDLVPEFLPAPEDVETNCEWSAFSCFQKAQLKSANTGNNERIINVSIKKLKRKPPSTN---------TCPSCDSYEKKPPKEFLERFKSLLQKMIHQHL 123
                                    11        21        31        41        51        61        71        81|        -|      101       111       121  
                                                                                                           82        92                               

Chain G from PDB  Type:PROTEIN  Length:209
 aligned with IL21R_HUMAN | Q9HBE5 from UniProtKB/Swiss-Prot  Length:538

    Alignment length:209
                                    29        39        49        59        69        79        89        99       109       119       129       139       149       159       169       179       189       199       209       219         
          IL21R_HUMAN    20 CPDLVCYTDYLQTVICILEMWNLHPSTLTLTWQDQYEELKDEATSCSLHRSAHNATHATYTCHMDVFHFMADDIFSVNITDQSGNYSQECGSFLLAESIKPAPPFNVTVTFSGQYNISWRSDYEDPAFYMLKGKLQYELQYRNRGDPWAVSPRRKLISVDSRSVSLLPLEFRKDSSYELQVRAGPMPGSSYQGTWSEWSDPVIFQTQSE 228
               SCOP domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeee....eeeeeee.......eeeeee............eeeeeeeee...eeeeeee.hhhhh....eeeeeee......eeeeeeee.hhh......eeeeeee...eeeeeehhhhhhhhhhhh..eeeeeeeee.........eeeee.....eeeehhhhh....eeeeeeeeee................eeee.... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------C---------L--------------------------- SAPs(SNPs)
                PROSITE (1) ---------------------------------------------------------------------------------------------------FN3  PDB: G:100-209 UniProt: 119-228                                                                           PROSITE (1)
                PROSITE (2) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------HEMATOPO_REC_S_F1  PDB: G:171-204 ----- PROSITE (2)
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3tgx G   1 CPDLVCYTDYLQTVICILEMWNLHPSTLTLTWQDQYEELKDEATSCSLHRSAHNATHATYTCHMDVFHFMADDIFSVQITDQSGQYSQECGSFLLAESIKPAPPFDVTVTFSGQYQISWRSDYEDPAFYMLKGKLQYELQYRNRGDPWAVSPRRKLISVDSRSVSLLPLEFRKDSSYELQVRAGPMPGSSYQGTWSEWSDPVIFQTQSE 209
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200         

Chain H from PDB  Type:PROTEIN  Length:116
 aligned with IL21_HUMAN | Q9HBE4 from UniProtKB/Swiss-Prot  Length:155

    Alignment length:120
                                    35        45        55        65        75        85        95       105       115       125       135       145
           IL21_HUMAN    26 DRHMIRMRQLIDIVDQLKNYVNDLVPEFLPAPEDVETNCEWSAFSCFQKAQLKSANTGNNERIINVSIKKLKRKPPSTNAGRRQKHRLTCPSCDSYEKKPPKEFLERFKSLLQKMIHQHL 145
               SCOP domains d3tgxh_ H: Interleukin-21 (IL-21)                                                                                        SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------ CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author .hhhhhhhhhhhhhhhhhhhhhhh....ee.....hhhhhhhhhhhhhhh........hhhhhhhhhhhhhh.......----........hhhhh.eehhhhhhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) -----------------------P------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------ Transcript
                 3tgx H   4 DRHMIRMRQLIDIVDQLKNYVNDLVPEFLPAPEDVETNCEWSAFSCFQKAQLKSANTGNNERIINVSIKKLKRKPPSTN----QKHRLTCPSCDSYEKKPPKEFLERFKSLLQKMIHQHL 123
                                    13        23        33        43        53        63        73        |-   |    93       103       113       123
                                                                                                         82   87                                    

Chain I from PDB  Type:PROTEIN  Length:209
 aligned with IL21R_HUMAN | Q9HBE5 from UniProtKB/Swiss-Prot  Length:538

    Alignment length:209
                                    29        39        49        59        69        79        89        99       109       119       129       139       149       159       169       179       189       199       209       219         
          IL21R_HUMAN    20 CPDLVCYTDYLQTVICILEMWNLHPSTLTLTWQDQYEELKDEATSCSLHRSAHNATHATYTCHMDVFHFMADDIFSVNITDQSGNYSQECGSFLLAESIKPAPPFNVTVTFSGQYNISWRSDYEDPAFYMLKGKLQYELQYRNRGDPWAVSPRRKLISVDSRSVSLLPLEFRKDSSYELQVRAGPMPGSSYQGTWSEWSDPVIFQTQSE 228
               SCOP domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeee....eeeeeee.......eeeeee............eeeeeeeee...eeeeeee.hhhhh....eeeeeee......eeeeeeee.hhh......eeeeeee...eeeeeehhhhhhhhhhhh..eeeeeeeee.........eeee......eeeehhhhh....eeeeeeeeee................eeee.... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------C---------L--------------------------- SAPs(SNPs)
                PROSITE (1) ---------------------------------------------------------------------------------------------------FN3  PDB: I:100-209 UniProt: 119-228                                                                           PROSITE (1)
                PROSITE (2) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------HEMATOPO_REC_S_F1  PDB: I:171-204 ----- PROSITE (2)
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3tgx I   1 CPDLVCYTDYLQTVICILEMWNLHPSTLTLTWQDQYEELKDEATSCSLHRSAHNATHATYTCHMDVFHFMADDIFSVQITDQSGQYSQECGSFLLAESIKPAPPFDVTVTFSGQYQISWRSDYEDPAFYMLKGKLQYELQYRNRGDPWAVSPRRKLISVDSRSVSLLPLEFRKDSSYELQVRAGPMPGSSYQGTWSEWSDPVIFQTQSE 209
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200         

Chain J from PDB  Type:PROTEIN  Length:116
 aligned with IL21_HUMAN | Q9HBE4 from UniProtKB/Swiss-Prot  Length:155

    Alignment length:125
                                    33        43        53        63        73        83        93       103       113       123       133       143     
           IL21_HUMAN    24 GQDRHMIRMRQLIDIVDQLKNYVNDLVPEFLPAPEDVETNCEWSAFSCFQKAQLKSANTGNNERIINVSIKKLKRKPPSTNAGRRQKHRLTCPSCDSYEKKPPKEFLERFKSLLQKMIHQHLSSR 148
               SCOP domains d3tgxj_ J: Interleukin-21 (IL-21)                                                                                             SCOP domains
               CATH domains ----------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..hhhhhhhhhhhhhhhhhhhhhhhh....ee.....hhhhhhhhhhhhhhh..........hhhhhhhhhhhh......---------....hhhhh.eehhhhhhhhhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) -------------------------P--------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------- Transcript
                 3tgx J   2 GQDRHMIRMRQLIDIVDQLKNYVNDLVPEFLPAPEDVETNCEWSAFSCFQKAQLKSANTGNNERIINVSIKKLKRKPPST---------LTCPSCDSYEKKPPKEFLERFKSLLQKMIHQHLSSR 126
                                    11        21        31        41        51        61        71        81        91       101       111       121     
                                                                                                          81        91                                   

Chain K from PDB  Type:PROTEIN  Length:209
 aligned with IL21R_HUMAN | Q9HBE5 from UniProtKB/Swiss-Prot  Length:538

    Alignment length:209
                                    29        39        49        59        69        79        89        99       109       119       129       139       149       159       169       179       189       199       209       219         
          IL21R_HUMAN    20 CPDLVCYTDYLQTVICILEMWNLHPSTLTLTWQDQYEELKDEATSCSLHRSAHNATHATYTCHMDVFHFMADDIFSVNITDQSGNYSQECGSFLLAESIKPAPPFNVTVTFSGQYNISWRSDYEDPAFYMLKGKLQYELQYRNRGDPWAVSPRRKLISVDSRSVSLLPLEFRKDSSYELQVRAGPMPGSSYQGTWSEWSDPVIFQTQSE 228
               SCOP domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeee....eeeeeee.......eeeeee............eeeeeeeee...eeeeeee.hhhhh....eeeeeee......eeeeeeee.hhh......eeeeeee...eeeeeehhhhhhhhhhhh..eeeeeeeee.........eeeee.....eeeehhhhh....eeeeeeeeee................eeee.... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------C---------L--------------------------- SAPs(SNPs)
                PROSITE (1) ---------------------------------------------------------------------------------------------------FN3  PDB: K:100-209 UniProt: 119-228                                                                           PROSITE (1)
                PROSITE (2) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------HEMATOPO_REC_S_F1  PDB: K:171-204 ----- PROSITE (2)
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3tgx K   1 CPDLVCYTDYLQTVICILEMWNLHPSTLTLTWQDQYEELKDEATSCSLHRSAHNATHATYTCHMDVFHFMADDIFSVQITDQSGQYSQECGSFLLAESIKPAPPFDVTVTFSGQYQISWRSDYEDPAFYMLKGKLQYELQYRNRGDPWAVSPRRKLISVDSRSVSLLPLEFRKDSSYELQVRAGPMPGSSYQGTWSEWSDPVIFQTQSE 209
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200         

Chain L from PDB  Type:PROTEIN  Length:110
 aligned with IL21_HUMAN | Q9HBE4 from UniProtKB/Swiss-Prot  Length:155

    Alignment length:119
                                    35        45        55        65        75        85        95       105       115       125       135         
           IL21_HUMAN    26 DRHMIRMRQLIDIVDQLKNYVNDLVPEFLPAPEDVETNCEWSAFSCFQKAQLKSANTGNNERIINVSIKKLKRKPPSTNAGRRQKHRLTCPSCDSYEKKPPKEFLERFKSLLQKMIHQH 144
               SCOP domains d3tgxl_ L: Interleukin-21 (IL-21)                                                                                       SCOP domains
               CATH domains ----------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhhhhhhhhhhhhhhhhhhh....ee........hhhhhhhhhhhh........hhhhhhhhhhhhhh......---------..........eehhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) -----------------------P----------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------- Transcript
                 3tgx L   4 DRHMIRMRQLIDIVDQLKNYVNDLVPEFLPAPEDVETNCEWSAFSCFQKAQLKSANTGNNERIINVSIKKLKRKPPST---------LTCPSCDSYEKKPPKEFLERFKSLLQKMIHQH 122
                                    13        23        33        43        53        63        73       | -       |93       103       113         
                                                                                                        81        91                               

Chain M from PDB  Type:PROTEIN  Length:208
 aligned with IL21R_HUMAN | Q9HBE5 from UniProtKB/Swiss-Prot  Length:538

    Alignment length:208
                                    29        39        49        59        69        79        89        99       109       119       129       139       149       159       169       179       189       199       209       219        
          IL21R_HUMAN    20 CPDLVCYTDYLQTVICILEMWNLHPSTLTLTWQDQYEELKDEATSCSLHRSAHNATHATYTCHMDVFHFMADDIFSVNITDQSGNYSQECGSFLLAESIKPAPPFNVTVTFSGQYNISWRSDYEDPAFYMLKGKLQYELQYRNRGDPWAVSPRRKLISVDSRSVSLLPLEFRKDSSYELQVRAGPMPGSSYQGTWSEWSDPVIFQTQS 227
               SCOP domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeee....eeeeeee.......eeeeee............eeeeeeeee...eeeeeee.hhhhh....eeeeeee......eeeeeeee.hhhh.....eeeeeee...eeeeeehhhhhhhhhhhh..eeeeeeeee.........eeeee.....eeee.........eeeeeeeeee................eeee... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------C---------L-------------------------- SAPs(SNPs)
                PROSITE (1) ---------------------------------------------------------------------------------------------------FN3  PDB: M:100-208 UniProt: 119-228                                                                          PROSITE (1)
                PROSITE (2) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------HEMATOPO_REC_S_F1  PDB: M:171-204 ---- PROSITE (2)
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3tgx M   1 CPDLVCYTDYLQTVICILEMWNLHPSTLTLTWQDQYEELKDEATSCSLHRSAHNATHATYTCHMDVFHFMADDIFSVQITDQSGQYSQECGSFLLAESIKPAPPFDVTVTFSGQYQISWRSDYEDPAFYMLKGKLQYELQYRNRGDPWAVSPRRKLISVDSRSVSLLPLEFRKDSSYELQVRAGPMPGSSYQGTWSEWSDPVIFQTQS 208
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200        

Chain N from PDB  Type:PROTEIN  Length:107
 aligned with IL21_HUMAN | Q9HBE4 from UniProtKB/Swiss-Prot  Length:155

    Alignment length:117
                                    35        45        55        65        75        85        95       105       115       125       135       
           IL21_HUMAN    26 DRHMIRMRQLIDIVDQLKNYVNDLVPEFLPAPEDVETNCEWSAFSCFQKAQLKSANTGNNERIINVSIKKLKRKPPSTNAGRRQKHRLTCPSCDSYEKKPPKEFLERFKSLLQKMIH 142
               SCOP domains d3tgxn_ N: Interleukin-21 (IL-21)                                                                                     SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhhhhhhhhhhhhhhhhhhh....ee........hhhhhhhhhhhh.........hhhhhhhhhhhhh......----------.........eehhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) -----------------------P--------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------- Transcript
                 3tgx N   4 DRHMIRMRQLIDIVDQLKNYVNDLVPEFLPAPEDVETNCEWSAFSCFQKAQLKSANTGNNERIINVSIKKLKRKPPST----------TCPSCDSYEKKPPKEFLERFKSLLQKMIH 120
                                    13        23        33        43        53        63        73       | -        93       103       113       
                                                                                                        81         92                            

Chain O from PDB  Type:PROTEIN  Length:208
 aligned with IL21R_HUMAN | Q9HBE5 from UniProtKB/Swiss-Prot  Length:538

    Alignment length:208
                                    29        39        49        59        69        79        89        99       109       119       129       139       149       159       169       179       189       199       209       219        
          IL21R_HUMAN    20 CPDLVCYTDYLQTVICILEMWNLHPSTLTLTWQDQYEELKDEATSCSLHRSAHNATHATYTCHMDVFHFMADDIFSVNITDQSGNYSQECGSFLLAESIKPAPPFNVTVTFSGQYNISWRSDYEDPAFYMLKGKLQYELQYRNRGDPWAVSPRRKLISVDSRSVSLLPLEFRKDSSYELQVRAGPMPGSSYQGTWSEWSDPVIFQTQS 227
               SCOP domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeee....eeeeeee.......eeeeee............eeeeeeeee...eeeeeee.hhhhh....eeeeeee......eeeeeeee..........eeeeeee...eeeeeehhhhhhhhhhhh..eeeeeeeee.........eeeee.....eeeehhhhh....eeeeeeeeee................eeee... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------C---------L-------------------------- SAPs(SNPs)
                PROSITE (1) ---------------------------------------------------------------------------------------------------FN3  PDB: O:100-208 UniProt: 119-228                                                                          PROSITE (1)
                PROSITE (2) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------HEMATOPO_REC_S_F1  PDB: O:171-204 ---- PROSITE (2)
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3tgx O   1 CPDLVCYTDYLQTVICILEMWNLHPSTLTLTWQDQYEELKDEATSCSLHRSAHNATHATYTCHMDVFHFMADDIFSVQITDQSGQYSQECGSFLLAESIKPAPPFDVTVTFSGQYQISWRSDYEDPAFYMLKGKLQYELQYRNRGDPWAVSPRRKLISVDSRSVSLLPLEFRKDSSYELQVRAGPMPGSSYQGTWSEWSDPVIFQTQS 208
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200        

Chain P from PDB  Type:PROTEIN  Length:110
 aligned with IL21_HUMAN | Q9HBE4 from UniProtKB/Swiss-Prot  Length:155

    Alignment length:120
                                    35        45        55        65        75        85        95       105       115       125       135       145
           IL21_HUMAN    26 DRHMIRMRQLIDIVDQLKNYVNDLVPEFLPAPEDVETNCEWSAFSCFQKAQLKSANTGNNERIINVSIKKLKRKPPSTNAGRRQKHRLTCPSCDSYEKKPPKEFLERFKSLLQKMIHQHL 145
               SCOP domains d3tgxp_ P: Interleukin-21 (IL-21)                                                                                        SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------ CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author .hhhhhhhhhhhhhhhhhhhhhhh....ee.....hhhhhhhhhhhhhhh.........hhhhhhhhhhhhh......----------...hhhhh.eehhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) -----------------------P------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------ Transcript
                 3tgx P   4 DRHMIRMRQLIDIVDQLKNYVNDLVPEFLPAPEDVETNCEWSAFSCFQKAQLKSANTGNNERIINVSIKKLKRKPPST----------TCPSCDSYEKKPPKEFLERFKSLLQKMIHQHL 123
                                    13        23        33        43        53        63        73       | -        93       103       113       123
                                                                                                        81         92                               

   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  (1, 8)

Asymmetric Unit

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 3TGX)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 3TGX)

(-) Gene Ontology  (25, 25)

Asymmetric Unit(hide GO term definitions)
Chain A,C,E,G,I,K,M,O   (IL21R_HUMAN | Q9HBE5)
molecular function
    GO:0004896    cytokine receptor activity    Combining with a cytokine and transmitting the signal from one side of the membrane to the other to initiate a change in cell activity.
    GO:0001532    interleukin-21 receptor activity    Combining with interleukin-21 and transmitting the signal from one side of the membrane to the other to initiate a change in cell activity.
biological process
    GO:0019221    cytokine-mediated signaling pathway    A series of molecular signals initiated by the binding of a cytokine to a receptor on the surface of a cell, and ending with regulation of a downstream cellular process, e.g. transcription.
    GO:0038114    interleukin-21-mediated signaling pathway    A series of molecular signals initiated by the binding of interleukin-21 to a receptor on the surface of a cell, and ending with regulation of a downstream cellular process, e.g. transcription.
    GO:0030101    natural killer cell activation    The change in morphology and behavior of a natural killer cell in response to a cytokine, chemokine, cellular ligand, or soluble factor.
cellular component
    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.

Chain B,D,F,H,J,L,N,P   (IL21_HUMAN | Q9HBE4)
molecular function
    GO:0005125    cytokine activity    Functions to control the survival, growth, differentiation and effector function of tissues and cells.
    GO:0005126    cytokine receptor binding    Interacting selectively and non-covalently with a cytokine receptor.
    GO:0005134    interleukin-2 receptor binding    Interacting selectively and non-covalently with the interleukin-2 receptor.
biological process
    GO:0048469    cell maturation    A developmental process, independent of morphogenetic (shape) change, that is required for a cell to attain its fully functional state.
    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:0030890    positive regulation of B cell proliferation    Any process that activates or increases the rate or extent of B cell proliferation.
    GO:0042102    positive regulation of T cell proliferation    Any process that activates or increases the rate or extent of T cell proliferation.
    GO:0008284    positive regulation of cell proliferation    Any process that activates or increases the rate or extent of cell proliferation.
    GO:0001819    positive regulation of cytokine production    Any process that activates or increases the frequency, rate or extent of production of a cytokine.
    GO:0050729    positive regulation of inflammatory response    Any process that activates or increases the frequency, rate or extent of the inflammatory response.
    GO:0045078    positive regulation of interferon-gamma biosynthetic process    Any process that activates or increases the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of interferon-gamma.
    GO:0032740    positive regulation of interleukin-17 production    Any process that activates or increases the frequency, rate, or extent of production of any member of the interleukin-17 family of cytokines.
    GO:0045954    positive regulation of natural killer cell mediated cytotoxicity    Any process that activates or increases the frequency, rate or extent of natural killer cell mediated cytotoxicity.
    GO:0034105    positive regulation of tissue remodeling    Any process that activates or increases the frequency, rate, or extent of tissue remodeling.
    GO:0007165    signal transduction    The cellular process in which a signal is conveyed to trigger a change in the activity or state of a cell. Signal transduction begins with reception of a signal (e.g. a ligand binding to a receptor or receptor activation by a stimulus such as light), or for signal transduction in the absence of ligand, signal-withdrawal or the activity of a constitutively active receptor. Signal transduction ends with regulation of a downstream cellular process, e.g. regulation of transcription or regulation of a metabolic process. Signal transduction covers signaling from receptors located on the surface of the cell and signaling via molecules located within the cell. For signaling between cells, signal transduction is restricted to events at and within the receiving cell.
cellular component
    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: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.

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  3tgx
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        IL21R_HUMAN | Q9HBE54nzd
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