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4L8S

Crystal structure of a human Valpha7.2/Vbeta13.3 MAIT TCR in complex with bovine MR1

Functional Information from GO Data
ChainGOidnamespacecontents
C0002376biological_processimmune system process
C0002474biological_processantigen processing and presentation of peptide antigen via MHC class I
C0002503biological_processpeptide antigen assembly with MHC class II protein complex
C0005576cellular_componentextracellular region
C0005765cellular_componentlysosomal membrane
C0006955biological_processimmune response
C0010038biological_processresponse to metal ion
C0019886biological_processantigen processing and presentation of exogenous peptide antigen via MHC class II
C0023026molecular_functionMHC class II protein complex binding
C0031902cellular_componentlate endosome membrane
C0042605molecular_functionpeptide antigen binding
C0042612cellular_componentMHC class I protein complex
C0042613cellular_componentMHC class II protein complex
C0050778biological_processpositive regulation of immune response
C0050870biological_processpositive regulation of T cell activation
Functional Information from PDB Data
site_idAC1
Number of Residues3
DetailsBINDING SITE FOR RESIDUE SO4 A 301
ChainResidue
AARG59
ALYS81
AHOH402

site_idAC2
Number of Residues3
DetailsBINDING SITE FOR RESIDUE SO4 A 302
ChainResidue
APRO7
ATHR8
AGLU9

site_idAC3
Number of Residues3
DetailsBINDING SITE FOR RESIDUE SO4 B 301
ChainResidue
BVAL166
BHIS167
BSER168

site_idAC4
Number of Residues5
DetailsBINDING SITE FOR RESIDUE SO4 C 401
ChainResidue
BGLY163
BHIS207
BARG209
CLYS297
CARG299

site_idAC5
Number of Residues2
DetailsBINDING SITE FOR RESIDUE SO4 C 402
ChainResidue
CSER56
CLYS57

Functional Information from PROSITE/UniProt
site_idPS00290
Number of Residues7
DetailsIG_MHC Immunoglobulins and major histocompatibility complex proteins signature. YSCRVKH
ChainResidueDetails
CTYR77-HIS83
CTYR368-HIS374

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues91
DetailsRegion: {"description":"Alpha-2","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues7
DetailsBinding site: {"evidences":[{"source":"UniProtKB","id":"Q95460","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues1
DetailsBinding site: {"description":"covalent","evidences":[{"source":"UniProtKB","id":"Q95460","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues1
DetailsGlycosylation: {"description":"N-linked (GlcNAc...) asparagine","evidences":[{"evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues87
DetailsDomain: {"description":"Ig-like C1-type"}
ChainResidueDetails

240291

PDB entries from 2025-08-13

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