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4KI1

Primitive triclinic crystal form of the human IgE-Fc(epsilon)3-4 bound to its B cell receptor derCD23

Functional Information from PROSITE/UniProt
site_idPS00290
Number of Residues7
DetailsIG_MHC Immunoglobulins and major histocompatibility complex proteins signature. YQCRVTH
ChainResidueDetails
ATYR416-HIS422
APHE522-HIS528

site_idPS00615
Number of Residues24
DetailsC_TYPE_LECTIN_1 C-type lectin domain signature. CVmmrgsgr.....WNDAFCdrklgaWVC
ChainResidueDetails
ECYS259-CYS282

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues396
DetailsDomain: {"description":"Ig-like 4","evidences":[{"source":"PROSITE-ProRule","id":"PRU00114","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues8
DetailsGlycosylation: {"description":"N-linked (GlcNAc...) asparagine","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues4
DetailsGlycosylation: {"description":"N-linked (GlcNAc...) asparagine","evidences":[{"source":"PubMed","id":"10917520","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues16
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"16765898","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

246905

PDB entries from 2025-12-31

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