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2KLU

NMR structure of the transmembrane and cytoplasmic domains of human CD4

Functional Information from GO Data
ChainGOidnamespacecontents
A0006955biological_processimmune response
A0015026molecular_functioncoreceptor activity
A0016020cellular_componentmembrane
Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues21
DetailsTransmembrane: {"description":"Helical","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues39
DetailsTopological domain: {"description":"Cytoplasmic","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues28
DetailsRegion: {"description":"HIV-1 Vpu-susceptibility domain"}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues3
DetailsModified residue: {"description":"Phosphoserine","evidences":[{"source":"PubMed","id":"2105883","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues2
DetailsLipidation: {"description":"S-palmitoyl cysteine","evidences":[{"source":"PubMed","id":"1618861","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

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PDB entries from 2025-11-05

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