3IU3 - JenaLib

Asymmetric Unit (Jmol Viewer)

Asym. Unit - sites (Jmol Viewer)

Biological Unit 1 (Jmol Viewer)

Biol. Unit 1 - sites (Jmol Viewer)

Biological Unit 2 (Jmol Viewer)

Biological Unit 3 (Jmol Viewer)

Title :   CRYSTAL STRUCTURE OF THE FAB FRAGMENT OF THERAPEUTIC ANTIBODY BASILIXIMAB IN COMPLEX WITH IL-2RA (CD25) ECTODOMAIN

Authors :   J. Du, H. Yang, J. Wang, J. Ding

Date :   29 Aug 09 (Deposition) - 26 Jan 10 (Release) - 05 Feb 14 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.90

Chains :   Asym. Unit : A,B,C,D,H,I,J,K,L
Biol. Unit 1: A,B,K  (1x)
Biol. Unit 2: C,D,J  (1x)
Biol. Unit 3: H,I,L  (1x)

Keywords :   Il-2Ra, Cd25, Basiliximab, Simulect, Therapeutic Antibody, Disulfide Bond, Glycoprotein, Membrane, Receptor, Sushi, Transmembrane, Immune System (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   J. Du, H. Yang, D. Zhang, J. Wang, H. Guo, B. Peng, Y. Guo, J. Ding
Structural Basis For The Blockage Of Il-2 Signaling By Therapeutic Antibody Basiliximab
J. Immunol. V. 184 1361 2010
PubMed-ID: 20032294 | Reference-DOI: 10.4049/JIMMUNOL.0903178

Molecule 1 - HEAVY CHAIN OF FAB FRAGMENT OF BASILIXIMAB
	Chains	:	A, C, H
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Taxid	:	562
	Organism Common	:	MOUSE, HUMAN
	Organism Scientific	:	MUS MUSCULUS, HOMO SAPIENS
	Organism Taxid	:	10090, 9606

Molecule 2 - LIGHT CHAIN OF FAB FRAGMENT OF BASILIXIMAB
	Chains	:	B, D, L
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Taxid	:	562
	Organism Common	:	MOUSE, HUMAN
	Organism Scientific	:	MUS MUSCULUS, HOMO SAPIENS
	Organism Taxid	:	10090, 9606

Molecule 3 - INTERLEUKIN-2 RECEPTOR ALPHA CHAIN
	Chains	:	I, J, K
	Engineered	:	YES
	Expression System	:	SPODOPTERA FRUGIPERDA
	Expression System Plasmid	:	PFASTBAC
	Expression System Strain	:	HIGH FIVE
	Expression System Taxid	:	7108
	Expression System Vector Type	:	PLASMID
	Fragment	:	EXTRACELLULAR DOMAIN, ECTODOMAIN, UNP RESIDUES 22-238
	Gene	:	IL-2RA
	Organism Common	:	HUMAN
	Organism Scientific	:	HOMO SAPIENS
	Organism Taxid	:	9606
	Synonym	:	IL-2 RECEPTOR ALPHA SUBUNIT, IL-2-RA, IL2-RA, P55, TAC ANTIGEN

		1	2	3	4	5	6	7	8	9
Asymmetric Unit	:	A	B	C	D	H	I	J	K	L
Biological Unit 1 (1x)	:	A	B						K
Biological Unit 2 (1x)	:			C	D			J
Biological Unit 3 (1x)	:					H	I			L

Summary Information (see also Sequences/Alignments below)

Asymmetric Unit (2, 9)

No.	Name	Count	Type	Full Name
1	BMA	3	Ligand/Ion	BETA-D-MANNOSE
2	NAG	6	Ligand/Ion	N-ACETYL-D-GLUCOSAMINE

Biological Unit 1 (2, 3)

No.	Name	Count	Type	Full Name
1	BMA	1	Ligand/Ion	BETA-D-MANNOSE
2	NAG	2	Ligand/Ion	N-ACETYL-D-GLUCOSAMINE

Biological Unit 2 (2, 3)

No.	Name	Count	Type	Full Name
1	BMA	1	Ligand/Ion	BETA-D-MANNOSE
2	NAG	2	Ligand/Ion	N-ACETYL-D-GLUCOSAMINE

Biological Unit 3 (2, 3)

No.	Name	Count	Type	Full Name
1	BMA	1	Ligand/Ion	BETA-D-MANNOSE
2	NAG	2	Ligand/Ion	N-ACETYL-D-GLUCOSAMINE

Asymmetric Unit (9, 9)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	ASN I:49 , SER I:51 , HIS I:52 , NAG I:301	BINDING SITE FOR RESIDUE NAG I 300
2	AC2	SOFTWARE	NAG I:300 , BMA I:302	BINDING SITE FOR RESIDUE NAG I 301
3	AC3	SOFTWARE	NAG I:301	BINDING SITE FOR RESIDUE BMA I 302
4	AC4	SOFTWARE	ASN J:49 , SER J:51 , HIS J:52 , NAG J:301	BINDING SITE FOR RESIDUE NAG J 300
5	AC5	SOFTWARE	NAG J:300 , BMA J:302	BINDING SITE FOR RESIDUE NAG J 301
6	AC6	SOFTWARE	NAG J:301	BINDING SITE FOR RESIDUE BMA J 302
7	AC7	SOFTWARE	ASN K:49 , SER K:51 , NAG K:301	BINDING SITE FOR RESIDUE NAG K 300
8	AC8	SOFTWARE	NAG K:300 , BMA K:302	BINDING SITE FOR RESIDUE NAG K 301
9	AC9	SOFTWARE	NAG K:301	BINDING SITE FOR RESIDUE BMA K 302

Asymmetric Unit

No.	Residues
1	A:20	-	A:94
2	A:142	-	A:198
3	B:23	-	B:87
4	B:131	-	B:191
5	C:20	-	C:94
6	C:142	-	C:198
7	D:23	-	D:87
8	D:131	-	D:191
9	H:20	-	H:94
10	H:142	-	H:198
11	I:3	-	I:147
12	I:28	-	I:59
13	I:30	-	I:61
14	I:46	-	I:104
15	J:3	-	J:147
16	J:28	-	J:59
17	J:30	-	J:61
18	K:3	-	K:147
19	K:28	-	K:59
20	K:30	-	K:61
21	K:46	-	K:104
22	L:23	-	L:87
23	L:131	-	L:191

Asymmetric Unit

No.	Residues
1	Phe A:148	-	Pro A:149
2	Glu A:150	-	Pro A:151
3	Ser B:7	-	Pro B:8
4	Tyr B:137	-	Pro B:138
5	Ser B:200	-	Pro B:201
6	Phe C:148	-	Pro C:149
7	Glu C:150	-	Pro C:151
8	Ser D:7	-	Pro D:8
9	Tyr D:137	-	Pro D:138
10	Ser D:200	-	Pro D:201
11	Phe H:148	-	Pro H:149
12	Glu H:150	-	Pro H:151
13	Ser L:7	-	Pro L:8
14	Tyr L:137	-	Pro L:138
15	Ser L:200	-	Pro L:201

Asymmetric Unit (4, 12)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_074641	Y	41	S	IL2RA_HUMAN	Disease (IMD41)	796051888	I/J/K	Y	20	S
2	UniProt	VAR_074642	S	166	N	IL2RA_HUMAN	Disease (IMD41)	796051887	I/J/K	S	145	N
3	UniProt	VAR_066403	W	41	R	IGKC_HUMAN	Disease (IGKCD)	---	B/D/L	W	145	R
4	UniProt	VAR_003897	V	84	L	IGKC_HUMAN	Polymorphism	---	B/D/L	V	188	L

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

Biological Unit 1 (4, 4)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_074641	Y	41	S	IL2RA_HUMAN	Disease (IMD41)	796051888	K	Y	20	S
2	UniProt	VAR_074642	S	166	N	IL2RA_HUMAN	Disease (IMD41)	796051887	K	S	145	N
3	UniProt	VAR_066403	W	41	R	IGKC_HUMAN	Disease (IGKCD)	---	B	W	145	R
4	UniProt	VAR_003897	V	84	L	IGKC_HUMAN	Polymorphism	---	B	V	188	L

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

Biological Unit 2 (4, 4)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_074641	Y	41	S	IL2RA_HUMAN	Disease (IMD41)	796051888	J	Y	20	S
2	UniProt	VAR_074642	S	166	N	IL2RA_HUMAN	Disease (IMD41)	796051887	J	S	145	N
3	UniProt	VAR_066403	W	41	R	IGKC_HUMAN	Disease (IGKCD)	---	D	W	145	R
4	UniProt	VAR_003897	V	84	L	IGKC_HUMAN	Polymorphism	---	D	V	188	L

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

Biological Unit 3 (4, 4)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_074641	Y	41	S	IL2RA_HUMAN	Disease (IMD41)	796051888	I	Y	20	S
2	UniProt	VAR_074642	S	166	N	IL2RA_HUMAN	Disease (IMD41)	796051887	I	S	145	N
3	UniProt	VAR_066403	W	41	R	IGKC_HUMAN	Disease (IGKCD)	---	L	W	145	R
4	UniProt	VAR_003897	V	84	L	IGKC_HUMAN	Polymorphism	---	L	V	188	L

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

Asymmetric Unit (2, 9)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	SUSHI	PS50923	Sushi/CCP/SCR domain profile.	IL2RA_HUMAN	22-84 123-186	6	I:1-61 J:1-63 K:1-63 I:102-158 J:103-158 K:102-156
2	IG_MHC	PS00290	Immunoglobulins and major histocompatibility complex proteins signature.	IGKC_HUMAN	85-91	3	B:189-195 D:189-195 L:189-195

Biological Unit 1 (2, 3)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	SUSHI	PS50923	Sushi/CCP/SCR domain profile.	IL2RA_HUMAN	22-84 123-186	2	- - K:1-63 - - K:102-156
2	IG_MHC	PS00290	Immunoglobulins and major histocompatibility complex proteins signature.	IGKC_HUMAN	85-91	1	B:189-195 - -

Biological Unit 2 (2, 3)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	SUSHI	PS50923	Sushi/CCP/SCR domain profile.	IL2RA_HUMAN	22-84 123-186	2	- J:1-63 - - J:103-158 -
2	IG_MHC	PS00290	Immunoglobulins and major histocompatibility complex proteins signature.	IGKC_HUMAN	85-91	1	- D:189-195 -

Biological Unit 3 (2, 3)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	SUSHI	PS50923	Sushi/CCP/SCR domain profile.	IL2RA_HUMAN	22-84 123-186	2	I:1-61 - - I:102-158 - -
2	IG_MHC	PS00290	Immunoglobulins and major histocompatibility complex proteins signature.	IGKC_HUMAN	85-91	1	- - L:189-195

Asymmetric Unit (4, 11)

	ENSEMBL					UniProtKB			PDB
No.	Transcript ID	Exon	Exon ID	Genome Location	Length	ID	Location	Length	Count	Location	Length
1.1b	ENST00000379959	1b	ENSE00001867972	chr10:6104288-6104051	238	IL2RA_HUMAN	1-22	22	3	I:1-1 J:1-1 K:1-1	1 1 1
1.2a	ENST00000379959	2a	ENSE00001132124	chr10:6067988-6067797	192	IL2RA_HUMAN	22-86	65	3	I:1-61 J:1-63 (gaps) K:1-63 (gaps)	61 63 63
1.3	ENST00000379959	3	ENSE00000915063	chr10:6066317-6066207	111	IL2RA_HUMAN	86-123	38	2	I:101-102 - K:101-102	2 - 2
1.4b	ENST00000379959	4b	ENSE00000915061	chr10:6063656-6063441	216	IL2RA_HUMAN	123-195	73	3	I:102-158 J:103-158 K:102-156	57 56 55
1.5	ENST00000379959	5	ENSE00000915060	chr10:6061904-6061833	72	IL2RA_HUMAN	195-219	25	0	-	-
1.6b	ENST00000379959	6b	ENSE00001194318	chr10:6061462-6061391	72	IL2RA_HUMAN	219-243	25	0	-	-
1.7	ENST00000379959	7	ENSE00001219989	chr10:6060082-6060016	67	IL2RA_HUMAN	243-265	23	0	-	-
1.8d	ENST00000379959	8d	ENSE00001889413	chr10:6054859-6052652	2208	IL2RA_HUMAN	265-272	8	0	-	-

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:215
                                                                                                                                                                                                                                                       
               SCOP domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains 3iu3A01 A:1-115 Immunoglobulins                                                                                    3iu3A02 A:116-215 Immunoglobulins                                                                    CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .eee...eee.....eeeeeee...hhhhh.eeeeee.....eeeeeee......eee.hhhh..eeeeee....eeeeee...hhhhheeeeeeee....eeee...eeeee........eeeee......ee..eeeeeeeeeee.....eeee........eee...ee.....eeeeeeeeee.hhhhhh.eeeeeeehhhheeeeeee.. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3iu3 A   1 QLQQSGTVLARPGASVKMSCKASGYSFTRYWMHWIKQRPGQGLEWIGAIYPGNSDTSYNQKFEGKAKLTAVTSASTAYMELSSLTHEDSAVYYCSRDYGYYFDFWGQGTTLTVSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKRVEP 215
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210

Chain B from PDB  Type:PROTEIN  Length:208
 aligned with IGKC_HUMAN | P01834 from UniProtKB/Swiss-Prot  Length:107

    Alignment length:208
                                                                                                                                    1                                                                                                       
                                     -         -         -         -         -         -         -         -         -         -    |    6        16        26        36        46        56        66        76        86        96        
           IGKC_HUMAN     - --------------------------------------------------------------------------------------------------------RTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNR 104
               SCOP domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------3iu3B02 B:106-208 Immunoglobulins                                                                       CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeee..eeee.....eeeeeeeeeee...eeeee......eeeee...ee.......eeeeeeeeeeeeee...hhhhheeeeee..........eeeee.......eeeee..hhhhhhhheeeeeeeeeee.....eeeeee..eee...eeeee.........eeeeeeeeeehhhhhh..eeeeeee.......eeeeee. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------R------------------------------------------L-------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------IG_MHC ------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3iu3 B   1 QIVSTQSPAIMSASPGEKVTMTCSASSSRSYMQWYQQKPGTSPKRWIYDTSKLASGVPARFSGSGSGTSYSLTISSMEAEDAATYYCHQRSSYTFGGGTKLEIKRTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNR 208
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200

Chain C from PDB  Type:PROTEIN  Length:215
                                                                                                                                                                                                                                                       
               SCOP domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains 3iu3C01 C:1-115 Immunoglobulins                                                                                    3iu3C02 C:116-215 Immunoglobulins                                                                    CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .eee...eee.....eeeeeee...hhhhheeeeeee.....eeeeeeee....eeee.hhhh..eeeeee....eeeeee...hhhhheeeeeeee......ee...eeeee........eeeee..hhh.ee..eeeeeeeeeee.....eeee.hhh....eee...ee.....eeeeeeeeee.hhhhhh.eeeeeeehhhheeeeeee.. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3iu3 C   1 QLQQSGTVLARPGASVKMSCKASGYSFTRYWMHWIKQRPGQGLEWIGAIYPGNSDTSYNQKFEGKAKLTAVTSASTAYMELSSLTHEDSAVYYCSRDYGYYFDFWGQGTTLTVSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKRVEP 215
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210

Chain D from PDB  Type:PROTEIN  Length:209
 aligned with IGKC_HUMAN | P01834 from UniProtKB/Swiss-Prot  Length:107

    Alignment length:209
                                                                                                                                    1                                                                                                        
                                     -         -         -         -         -         -         -         -         -         -    |    6        16        26        36        46        56        66        76        86        96         
           IGKC_HUMAN     - --------------------------------------------------------------------------------------------------------RTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRG 105
               SCOP domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------3iu3D02 D:106-208 Immunoglobulins                                                                      - CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeee..eeee.....eeeeeee.......eeeee......eeeee...ee.......eeeeee..eeeeee...hhhhh.eeeee..........eeeee.......eeeee..hhhhhhhheeeeeeeeeee....eeeeeee..ee....eeeee.........eeeeeeeeeehhhhhh..eeeeeeee......eeeeee.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------R------------------------------------------L--------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------IG_MHC -------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3iu3 D   1 QIVSTQSPAIMSASPGEKVTMTCSASSSRSYMQWYQQKPGTSPKRWIYDTSKLASGVPARFSGSGSGTSYSLTISSMEAEDAATYYCHQRSSYTFGGGTKLEIKRTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRG 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:215
                                                                                                                                                                                                                                                       
               SCOP domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains 3iu3H01 H:1-115 Immunoglobulins                                                                                    3iu3H02 H:116-215 Immunoglobulins                                                                    CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .eee...eee.....eeeeeee.........eeeeee.....eeeeeeee....eeee.hhhh..eeeeee....eeeeee...hhhhh.eeeeee.......ee...eeeee........eeeee......ee..eeeeeeeeeee.....eeee.hhh....eee...ee.....eeeeeeeeee.hhhh....eeeeeehhhheeeeee... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3iu3 H   1 QLQQSGTVLARPGASVKMSCKASGYSFTRYWMHWIKQRPGQGLEWIGAIYPGNSDTSYNQKFEGKAKLTAVTSASTAYMELSSLTHEDSAVYYCSRDYGYYFDFWGQGTTLTVSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKRVEP 215
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210

Chain I from PDB  Type:PROTEIN  Length:119
 aligned with IL2RA_HUMAN | P01589 from UniProtKB/Swiss-Prot  Length:272

    Alignment length:158
                                    31        41        51        61        71        81        91       101       111       121       131       141       151       161       171        
          IL2RA_HUMAN    22 ELCDDDPPEIPHATFKAMAYKEGTMLNCECKRGFRRIKSGSLYMLCTGNSSHSSWDNQCQCTSSATRNTTKQVTPQPEEQKERKTTEMQSPMQPVDQASLPGHCREPPPWENEATERIYHFVVGQMVYYQCVQGYRALHRGPAESVCKMTHGKTRWTQ 179
               SCOP domains -------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ............eeee...ee...eee...............eeeee......ee......---------------------------------------..ee..............ee.....eeeeee............eee.eee..eee... Sec.struct. author
                 SAPs(SNPs) -------------------S----------------------------------------------------------------------------------------------------------------------------N------------- SAPs(SNPs)
                    PROSITE SUSHI  PDB: I:1-61 UniProt: 22-84                              --------------------------------------SUSHI  PDB: I:102-158 UniProt: 123-186                    PROSITE
           Transcript 1 (1) 1---------------------------------------------------------------Exon 1.3  PDB: I:101-102 [INCOMPLETE] -------------------------------------------------------- Transcript 1 (1)
           Transcript 1 (2) Exon 1.2a  PDB: I:1-61 UniProt: 22-86 [INCOMPLETE]               ------------------------------------Exon 1.4b  PDB: I:102-158 UniProt: 123-195 [INCOMPLETE]   Transcript 1 (2)
                 3iu3 I   1 ELCDDDPPEIPHATFKAMAYKEGTMLNCECKRGFRRIKSGSLYMLCTGNSSHSSWDNQCQC---------------------------------------PGHCREPPPWENEATERIYHFVVGQMVYYQCVQGYRALHRGPAESVCKMTHGKTRWTQ 158
                                    10        20        30        40        50        60|        -         -         -         -|      110       120       130       140       150        
                                                                                       61                                     101

Chain J from PDB  Type:PROTEIN  Length:116
 aligned with IL2RA_HUMAN | P01589 from UniProtKB/Swiss-Prot  Length:272

    Alignment length:158
                                    31        41        51        61        71        81        91       101       111       121       131       141       151       161       171        
          IL2RA_HUMAN    22 ELCDDDPPEIPHATFKAMAYKEGTMLNCECKRGFRRIKSGSLYMLCTGNSSHSSWDNQCQCTSSATRNTTKQVTPQPEEQKERKTTEMQSPMQPVDQASLPGHCREPPPWENEATERIYHFVVGQMVYYQCVQGYRALHRGPAESVCKMTHGKTRWTQ 179
               SCOP domains -------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .............eee...ee...eee......---......eeeeee....eee........---------------------------------------.ee.............ee.....eeeee.............eee............ Sec.struct. author
                 SAPs(SNPs) -------------------S----------------------------------------------------------------------------------------------------------------------------N------------- SAPs(SNPs)
                    PROSITE SUSHI  PDB: J:1-63 UniProt: 22-84                              --------------------------------------SUSHI  PDB: J:103-158 UniProt: 123-186                    PROSITE
           Transcript 1 (1) 1---------------------------------------------------------------Exon 1.3  PDB: - UniProt: 86-123      -------------------------------------------------------- Transcript 1 (1)
           Transcript 1 (2) Exon 1.2a  PDB: J:1-63 (gaps) UniProt: 22-86 [INCOMPLETE]        ------------------------------------Exon 1.4b  PDB: J:103-158 UniProt: 123-195 [INCOMPLETE]   Transcript 1 (2)
                 3iu3 J   1 ELCDDDPPEIPHATFKAMAYKEGTMLNCECKRG---IKSGSLYMLCTGNSSHSSWDNQCQCTS---------------------------------------HCREPPPWENEATERIYHFVVGQMVYYQCVQGYRALHRGPAESVCKMTHGKTRWTQ 158
                                    10        20        30  |   | 40        50        60  |      -         -         -         -  |    110       120       130       140       150        
                                                           33  37                        63                                     103

Chain K from PDB  Type:PROTEIN  Length:114
 aligned with IL2RA_HUMAN | P01589 from UniProtKB/Swiss-Prot  Length:272

    Alignment length:156
                                    31        41        51        61        71        81        91       101       111       121       131       141       151       161       171      
          IL2RA_HUMAN    22 ELCDDDPPEIPHATFKAMAYKEGTMLNCECKRGFRRIKSGSLYMLCTGNSSHSSWDNQCQCTSSATRNTTKQVTPQPEEQKERKTTEMQSPMQPVDQASLPGHCREPPPWENEATERIYHFVVGQMVYYQCVQGYRALHRGPAESVCKMTHGKTRW 177
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------------------ SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------ CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author .............eee..eee...eee...-----.......eeeee......ee........-------------------------------------..eee.............ee.......eee.................eee..eee. Sec.struct. author
                 SAPs(SNPs) -------------------S----------------------------------------------------------------------------------------------------------------------------N----------- SAPs(SNPs)
                    PROSITE SUSHI  PDB: K:1-63 UniProt: 22-84                              --------------------------------------SUSHI  PDB: K:102-156 UniProt: 123-186                  PROSITE
           Transcript 1 (1) 1---------------------------------------------------------------Exon 1.3  PDB: K:101-102 [INCOMPLETE] ------------------------------------------------------ Transcript 1 (1)
           Transcript 1 (2) Exon 1.2a  PDB: K:1-63 (gaps) UniProt: 22-86 [INCOMPLETE]        ------------------------------------Exon 1.4b  PDB: K:102-156 UniProt: 123-195 [INCOMPLETE] Transcript 1 (2)
                 3iu3 K   1 ELCDDDPPEIPHATFKAMAYKEGTMLNCEC-----RIKSGSLYMLCTGNSSHSSWDNQCQCTS-------------------------------------PGHCREPPPWENEATERIYHFVVGQMVYYQCVQGYRALHRGPAESVCKMTHGKTRW 156
                                    10        20        30     |  40        50        60  |      -         -         -         -|      110       120       130       140       150      
                                                        30    36                         63                                   101

Chain L from PDB  Type:PROTEIN  Length:208
 aligned with IGKC_HUMAN | P01834 from UniProtKB/Swiss-Prot  Length:107

    Alignment length:208
                                                                                                                                    1                                                                                                       
                                     -         -         -         -         -         -         -         -         -         -    |    6        16        26        36        46        56        66        76        86        96        
           IGKC_HUMAN     - --------------------------------------------------------------------------------------------------------RTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNR 104
               SCOP domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------3iu3L02 L:106-208 Immunoglobulins                                                                       CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeee..eeee.....eeeeeeeeeee...eeeee......eeeee...ee.......eeeeeeeeeeeeee...hhhhh.eeeee..........eeeee.......eeeee..hhhhhhhheeeeeeeeeee....eeeeeee..ee....eeeee.........eeeeeeeeeehhhhhh..eeeeeeee......eeeeee. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------R------------------------------------------L-------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------IG_MHC ------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3iu3 L   1 QIVSTQSPAIMSASPGEKVTMTCSASSSRSYMQWYQQKPGTSPKRWIYDTSKLASGVPARFSGSGSGTSYSLTISSMEAEDAATYYCHQRSSYTFGGGTKLEIKRTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNR 208
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200

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 '\|'

(no "SCOP Domain" information available for 3IU3)

Asymmetric Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Mainly Beta (13760)

Architecture: Sandwich (5577)

Topology: Immunoglobulin-like (3897)

Homologous Superfamily: Immunoglobulins (2282)

[unclassified] (54)

1a	3iu3B02	B:106-208
1b	3iu3A02	A:116-215
1c	3iu3C02	C:116-215
1d	3iu3H02	H:116-215
1e	3iu3D02	D:106-208
1f	3iu3L02	L:106-208
1g	3iu3A01	A:1-115
1h	3iu3C01	C:1-115
1i	3iu3H01	H:1-115

(no "Pfam Domain" information available for 3IU3)

Asymmetric Unit(hide GO term definitions)

Chain B,D,L (IGKC_HUMAN | P01834)

molecular function
	GO:0003823	antigen binding	Interacting selectively and non-covalently with an antigen, any substance which is capable of inducing a specific immune response and of reacting with the products of that response, the specific antibody or specifically sensitized T-lymphocytes, or both. Binding may counteract the biological activity of the antigen.
	GO:0034987	immunoglobulin receptor binding	Interacting selectively and non-covalently with one or more specific sites on an immunoglobulin receptor molecule.
	GO:0004252	serine-type endopeptidase activity	Catalysis of the hydrolysis of internal, alpha-peptide bonds in a polypeptide chain by a catalytic mechanism that involves a catalytic triad consisting of a serine nucleophile that is activated by a proton relay involving an acidic residue (e.g. aspartate or glutamate) and a basic residue (usually histidine).
biological process
	GO:0050853	B cell receptor signaling pathway	A series of molecular signals initiated by the cross-linking of an antigen receptor on a B cell.
	GO:0038095	Fc-epsilon receptor signaling pathway	A series of molecular signals initiated by the binding of the Fc portion of immunoglobulin E (IgE) to an Fc-epsilon receptor on the surface of a signal-receiving cell, and ending with regulation of a downstream cellular process, e.g. transcription. The Fc portion of an immunoglobulin is its C-terminal constant region.
	GO:0038096	Fc-gamma receptor signaling pathway involved in phagocytosis	An Fc-gamma receptor signaling pathway that contributes to the endocytic engulfment of external particulate material by phagocytes.
	GO:0006956	complement activation	Any process involved in the activation of any of the steps of the complement cascade, which allows for the direct killing of microbes, the disposal of immune complexes, and the regulation of other immune processes; the initial steps of complement activation involve one of three pathways, the classical pathway, the alternative pathway, and the lectin pathway, all of which lead to the terminal complement pathway.
	GO:0006958	complement activation, classical pathway	Any process involved in the activation of any of the steps of the classical pathway of the complement cascade which allows for the direct killing of microbes, the disposal of immune complexes, and the regulation of other immune processes.
	GO:0042742	defense response to bacterium	Reactions triggered in response to the presence of a 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:0045087	innate immune response	Innate immune responses are defense responses mediated by germline encoded components that directly recognize components of potential pathogens.
	GO:0006911	phagocytosis, engulfment	The internalization of bacteria, immune complexes and other particulate matter or of an apoptotic cell by phagocytosis, including the membrane and cytoskeletal processes required, which involves one of three mechanisms: zippering of pseudopods around a target via repeated receptor-ligand interactions, sinking of the target directly into plasma membrane of the phagocytosing cell, or induced uptake via an enhanced membrane ruffling of the phagocytosing cell similar to macropinocytosis.
	GO:0006910	phagocytosis, recognition	The initial step in phagocytosis involving adhesion to bacteria, immune complexes and other particulate matter, or an apoptotic cell and based on recognition of factors such as bacterial cell wall components, opsonins like complement and antibody or protein receptors and lipids like phosphatidyl serine, and leading to intracellular signaling in the phagocytosing cell.
	GO:0050871	positive regulation of B cell activation	Any process that activates or increases the frequency, rate or extent of B cell activation.
	GO:0006508	proteolysis	The hydrolysis of proteins into smaller polypeptides and/or amino acids by cleavage of their peptide bonds.
	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: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: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:0072562	blood microparticle	A phospholipid microvesicle that is derived from any of several cell types, such as platelets, blood cells, endothelial cells, or others, and contains membrane receptors as well as other proteins characteristic of the parental cell. Microparticles are heterogeneous in size, and are characterized as microvesicles free of nucleic acids.
	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:0042571	immunoglobulin complex, circulating	An immunoglobulin complex that is secreted into extracellular space and found in mucosal areas or other tissues or circulating in the blood or lymph. In its canonical form, a circulating immunoglobulin complex is composed of two identical heavy chains and two identical light chains, held together by disulfide bonds. Some forms of are polymers of the basic structure and contain additional components such as J-chain and the secretory component.
	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 I,J,K (IL2RA_HUMAN | P01589)

molecular function
	GO:0005088	Ras guanyl-nucleotide exchange factor activity	Stimulates the exchange of guanyl nucleotides associated with a GTPase of the Ras superfamily. Under normal cellular physiological conditions, the concentration of GTP is higher than that of GDP, favoring the replacement of GDP by GTP in association with the GTPase.
	GO:0008144	drug binding	Interacting selectively and non-covalently with a drug, any naturally occurring or synthetic substance, other than a nutrient, that, when administered or applied to an organism, affects the structure or functioning of the organism; in particular, any such substance used in the diagnosis, prevention, or treatment of disease.
	GO:0019976	interleukin-2 binding	Interacting selectively and non-covalently with interleukin-2.
	GO:0004911	interleukin-2 receptor activity	Combining with interleukin-2 and transmitting the signal from one side of the membrane to the other to initiate a change in cell activity.
biological process
	GO:0000165	MAPK cascade	An intracellular protein kinase cascade containing at least a MAPK, a MAPKK and a MAP3K. The cascade can also contain two additional tiers: the upstream MAP4K and the downstream MAP Kinase-activated kinase (MAPKAPK). The kinases in each tier phosphorylate and activate the kinases in the downstream tier to transmit a signal within a cell.
	GO:0007219	Notch signaling pathway	A series of molecular signals initiated by the binding of an extracellular ligand to the receptor Notch on the surface of a target cell, and ending with regulation of a downstream cellular process, e.g. transcription.
	GO:0043029	T cell homeostasis	The process of regulating the proliferation and elimination of T cells such that the total number of T cells within a whole or part of an organism is stable over time in the absence of an outside stimulus.
	GO:0006924	activation-induced cell death of T cells	A T cell apoptotic process that occurs towards the end of the expansion phase following the initial activation of mature T cells by antigen and is triggered by T cell receptor stimulation and signals transmitted via various surface-expressed members of the TNF receptor family such as Fas ligand, Fas, and TNF and the p55 and p75 TNF receptors.
	GO:0006915	apoptotic process	A programmed cell death process which begins when a cell receives an internal (e.g. DNA damage) or external signal (e.g. an extracellular death ligand), and proceeds through a series of biochemical events (signaling pathway phase) which trigger an execution phase. The execution phase is the last step of an apoptotic process, and is typically characterized by rounding-up of the cell, retraction of pseudopodes, reduction of cellular volume (pyknosis), chromatin condensation, nuclear fragmentation (karyorrhexis), plasma membrane blebbing and fragmentation of the cell into apoptotic bodies. When the execution phase is completed, the cell has died.
	GO:0008283	cell proliferation	The multiplication or reproduction of cells, resulting in the expansion of a cell population.
	GO:0007166	cell surface receptor signaling pathway	A series of molecular signals initiated by activation of a receptor on the surface of a cell. The pathway begins with binding of an extracellular ligand to a cell surface receptor, or for receptors that signal in the absence of a ligand, by ligand-withdrawal or the activity of a constitutively active receptor. The pathway ends with regulation of a downstream cellular process, e.g. transcription.
	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:0006954	inflammatory response	The immediate defensive reaction (by vertebrate tissue) to infection or injury caused by chemical or physical agents. The process is characterized by local vasodilation, extravasation of plasma into intercellular spaces and accumulation of white blood cells and macrophages.
	GO:0002437	inflammatory response to antigenic stimulus	An inflammatory response to an antigenic stimulus, which can be include any number of T cell or B cell epitopes.
	GO:0038110	interleukin-2-mediated signaling pathway	A series of molecular signals initiated by the binding of interleukin-2 to a receptor on the surface of a cell, and ending with regulation of a downstream cellular process, e.g. transcription.
	GO:0042130	negative regulation of T cell proliferation	Any process that stops, prevents or reduces the rate or extent of T cell proliferation.
	GO:0050687	negative regulation of defense response to virus	Any process that stops, prevents or reduces the rate or extent of antiviral mechanisms, thereby facilitating viral replication.
	GO:0050777	negative regulation of immune response	Any process that stops, prevents, or reduces the frequency, rate or extent of the immune response, the immunological reaction of an organism to an immunogenic stimulus.
	GO:0050728	negative regulation of inflammatory response	Any process that stops, prevents, or reduces the frequency, rate or extent of the inflammatory response.
	GO:0050672	negative regulation of lymphocyte proliferation	Any process that stops, prevents or reduces the rate or extent of lymphocyte proliferation.
	GO:0043547	positive regulation of GTPase activity	Any process that activates or increases the activity of a GTPase.
	GO:0045582	positive regulation of T cell differentiation	Any process that activates or increases the frequency, rate or extent of T cell differentiation.
	GO:0042102	positive regulation of T cell proliferation	Any process that activates or increases the rate or extent of T cell proliferation.
	GO:0042104	positive regulation of activated T cell proliferation	Any process that activates or increases the rate or extent of activated T cell proliferation.
	GO:0046013	regulation of T cell homeostatic proliferation	Any process that modulates the frequency, rate or extent of resting T cell proliferation.
	GO:0002664	regulation of T cell tolerance induction	Any process that modulates the frequency, rate, or extent of T cell tolerance induction.
cellular component
	GO:0009986	cell surface	The external part of the cell wall and/or plasma membrane.
	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: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: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:0016020	membrane	A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
	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.

Asymmetric Unit
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	3iu3
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(no "Related Entries Specified in the PDB File" available for 3IU3)

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (2, 9)

Sites (9, 9)

SS Bonds (23, 23)

Cis Peptide Bonds (15, 15)

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SAPs(SNPs)/Variants (4, 12)

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Exons (4, 11)

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