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1AQD

HLA-DR1 (DRA, DRB1 0101) HUMAN CLASS II HISTOCOMPATIBILITY PROTEIN (EXTRACELLULAR DOMAIN) COMPLEXED WITH ENDOGENOUS PEPTIDE

Functional Information from GO Data
ChainGOidnamespacecontents
A0006955biological_processimmune response
A0016020cellular_componentmembrane
A0019882biological_processantigen processing and presentation
A0042613cellular_componentMHC class II protein complex
B0006955biological_processimmune response
B0016020cellular_componentmembrane
B0019882biological_processantigen processing and presentation
B0042613cellular_componentMHC class II protein complex
D0006955biological_processimmune response
D0016020cellular_componentmembrane
D0019882biological_processantigen processing and presentation
D0042613cellular_componentMHC class II protein complex
E0006955biological_processimmune response
E0016020cellular_componentmembrane
E0019882biological_processantigen processing and presentation
E0042613cellular_componentMHC class II protein complex
G0006955biological_processimmune response
G0016020cellular_componentmembrane
G0019882biological_processantigen processing and presentation
G0042613cellular_componentMHC class II protein complex
H0006955biological_processimmune response
H0016020cellular_componentmembrane
H0019882biological_processantigen processing and presentation
H0042613cellular_componentMHC class II protein complex
J0006955biological_processimmune response
J0016020cellular_componentmembrane
J0019882biological_processantigen processing and presentation
J0042613cellular_componentMHC class II protein complex
K0006955biological_processimmune response
K0016020cellular_componentmembrane
K0019882biological_processantigen processing and presentation
K0042613cellular_componentMHC class II protein complex
Functional Information from PROSITE/UniProt
site_idPS00290
Number of Residues7
DetailsIG_MHC Immunoglobulins and major histocompatibility complex proteins signature. YTCQVEH
ChainResidueDetails
BTYR171-HIS177
ATYR161-HIS167

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues720
DetailsDomain: {"description":"Ig-like C1-type"}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues372
DetailsRegion: {"description":"Alpha-2"}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues4
DetailsSite: {"description":"Self- and pathogen-derived peptide antigen","evidences":[{"source":"PubMed","id":"17583734","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"21115828","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"23260142","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"8145819","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"4GBX","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues8
DetailsSite: {"description":"Self-peptide antigen","evidences":[{"source":"PubMed","id":"31619516","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues4
DetailsSite: {"description":"Self- and pathogen-derived peptide antigen","evidences":[{"source":"PubMed","id":"21115828","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"8145819","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues4
DetailsSite: {"description":"Self- and pathogen-derived peptide antigen","evidences":[{"source":"PubMed","id":"17583734","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"21115828","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"31619516","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"8145819","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues4
DetailsSite: {"description":"Pathogen-derived peptide antigen","evidences":[{"source":"PubMed","id":"23260142","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"4GBX","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI8
Number of Residues4
DetailsSite: {"description":"Self- and pathogen-derived peptide antigen","evidences":[{"source":"PubMed","id":"17583734","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"21115828","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"23260142","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"31619516","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"8145819","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"4GBX","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI9
Number of Residues4
DetailsSite: {"description":"Pathogen-derived peptide antigen","evidences":[{"source":"PubMed","id":"17583734","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"21115828","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"23260142","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"8145819","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"4FQX","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"4GBX","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI10
Number of Residues4
DetailsSite: {"description":"Self- and pathogen-derived peptide antigen","evidences":[{"source":"PubMed","id":"17583734","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"23260142","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"31619516","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"8145819","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"4FQX","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"4GBX","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI11
Number of Residues8
DetailsGlycosylation: {"description":"N-linked (GlcNAc...) asparagine","evidences":[{"source":"PubMed","id":"19159218","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"7477400","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI12
Number of Residues16
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"31619516","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"8145819","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI13
Number of Residues4
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"8145819","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI14
Number of Residues4
DetailsGlycosylation: {"description":"N-linked (GlcNAc...) asparagine","evidences":[{"source":"PubMed","id":"19303388","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"24190431","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI15
Number of Residues4
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"21543847","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

238895

PDB entries from 2025-07-16

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