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4XT1

Structure of a nanobody-bound viral GPCR bound to human chemokine CX3CL1

Functional Information from GO Data
ChainGOidnamespacecontents
A0004930molecular_functionG protein-coupled receptor activity
A0004950molecular_functionchemokine receptor activity
A0005515molecular_functionprotein binding
A0006935biological_processchemotaxis
A0006955biological_processimmune response
A0007165biological_processsignal transduction
A0007186biological_processG protein-coupled receptor signaling pathway
A0007204biological_processpositive regulation of cytosolic calcium ion concentration
A0016020cellular_componentmembrane
A0016493molecular_functionC-C chemokine receptor activity
A0019087biological_processsymbiont-mediated transformation of host cell
A0019722biological_processcalcium-mediated signaling
A0019957molecular_functionC-C chemokine binding
A0020002cellular_componenthost cell plasma membrane
A0052031biological_processsymbiont-mediated perturbation of host defense response
A0060326biological_processcell chemotaxis
A0070098biological_processchemokine-mediated signaling pathway
B0005576cellular_componentextracellular region
B0006955biological_processimmune response
B0008009molecular_functionchemokine activity
Functional Information from PDB Data
site_idAC1
Number of Residues3
Detailsbinding site for residue CLR A 401
ChainResidue
APRO243
ALEU246
ACLR402

site_idAC2
Number of Residues6
Detailsbinding site for residue CLR A 402
ChainResidue
APHE249
ALEU253
ASER268
AARG271
ALEU279
ACLR401

site_idAC3
Number of Residues2
Detailsbinding site for residue OLC A 403
ChainResidue
APRO34
APHE38

site_idAC4
Number of Residues6
Detailsbinding site for residue OLC A 404
ChainResidue
AGLY224
AARG228
AILE231
ALEU235
AOLC406
AOLC407

site_idAC5
Number of Residues6
Detailsbinding site for residue OLC A 405
ChainResidue
APHE46
AILE49
ALEU289
APHE293
AARG299
ALEU302

site_idAC6
Number of Residues5
Detailsbinding site for residue OLC A 406
ChainResidue
ATYR209
AARG213
AILE231
AVAL234
AOLC404

site_idAC7
Number of Residues8
Detailsbinding site for residue OLC A 407
ChainResidue
ASER202
ATYR209
AARG210
AARG213
AARG225
AARG228
AOLC404
AOLC408

site_idAC8
Number of Residues3
Detailsbinding site for residue OLC A 408
ChainResidue
ALEU289
ALEU290
AOLC407

site_idAC9
Number of Residues3
Detailsbinding site for residue SIN A 416
ChainResidue
ALEU119
ATHR123
AGLY195

Functional Information from PROSITE/UniProt
site_idPS00237
Number of Residues17
DetailsG_PROTEIN_RECEP_F1_1 G-protein coupled receptors family 1 signature. ASLcFITEIALDRYYaI
ChainResidueDetails
AALA117-ILE133

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues20
DetailsTransmembrane: {"description":"Helical; Name=1","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues55
DetailsTopological domain: {"description":"Cytoplasmic","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues20
DetailsTransmembrane: {"description":"Helical; Name=2","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues20
DetailsTransmembrane: {"description":"Helical; Name=3","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues20
DetailsTransmembrane: {"description":"Helical; Name=4","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues39
DetailsTopological domain: {"description":"Extracellular","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues20
DetailsTransmembrane: {"description":"Helical; Name=5","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI8
Number of Residues20
DetailsTransmembrane: {"description":"Helical; Name=6","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI9
Number of Residues20
DetailsTransmembrane: {"description":"Helical; Name=7","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI10
Number of Residues1
DetailsGlycosylation: {"description":"N-linked (GlcNAc...) asparagine; by host","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI11
Number of Residues1
DetailsGlycosylation: {"description":"N-linked (GlcNAc...) asparagine","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

248636

PDB entries from 2026-02-04

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