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4UNU

MCG - a dimer of lambda variable domains

Functional Information from GO Data
ChainGOidnamespacecontents
A0002250biological_processadaptive immune response
A0002376biological_processimmune system process
A0003823molecular_functionantigen binding
A0005576cellular_componentextracellular region
A0005886cellular_componentplasma membrane
A0006955biological_processimmune response
A0019814cellular_componentimmunoglobulin complex
B0002250biological_processadaptive immune response
B0002376biological_processimmune system process
B0003823molecular_functionantigen binding
B0005576cellular_componentextracellular region
B0005886cellular_componentplasma membrane
B0006955biological_processimmune response
B0019814cellular_componentimmunoglobulin complex
Functional Information from PDB Data
site_idAC1
Number of Residues9
DetailsBINDING SITE FOR RESIDUE SO4 B 1111
ChainResidue
BSER27
BSER58
BGLY59
BVAL60
BHOH2049
BHOH2050
BHOH2051
BHOH2098
BHOH2144

site_idAC2
Number of Residues9
DetailsBINDING SITE FOR RESIDUE SO4 B 1112
ChainResidue
AARG56
ASER65
AHOH2137
AHOH2138
AHOH2142
AHOH2150
BSER69
BGLY70
BHOH2146

site_idAC3
Number of Residues6
DetailsBINDING SITE FOR RESIDUE SO4 B 1113
ChainResidue
BARG56
BHOH2050
BHOH2097
BHOH2098
BHOH2100
BHOH2148

site_idAC4
Number of Residues12
DetailsBINDING SITE FOR RESIDUE 15P A 1111
ChainResidue
ATYR34
ATYR51
ATYR93
AASP97
AHOH2222
AHOH2223
AHOH2224
AHOH2225
BTYR51
BASP97
BPHE99
BHOH2135

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues16
DetailsRegion: {"description":"Complementarity-determining-1","evidences":[{"source":"UniProtKB","id":"P01721","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues32
DetailsRegion: {"description":"Framework-2","evidences":[{"source":"UniProtKB","id":"P01721","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues4
DetailsRegion: {"description":"Complementarity-determining-2","evidences":[{"source":"UniProtKB","id":"P01721","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues70
DetailsRegion: {"description":"Framework-3","evidences":[{"source":"UniProtKB","id":"P01721","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues42
DetailsRegion: {"description":"Disordered","evidences":[{"source":"SAM","id":"MobiDB-lite","evidenceCode":"ECO:0000256"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues16
DetailsRegion: {"description":"Complementarity-determining-3","evidences":[{"source":"UniProtKB","id":"P01721","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues24
DetailsCompositional bias: {"description":"Polar residues","evidences":[{"source":"SAM","id":"MobiDB-lite","evidenceCode":"ECO:0000256"}]}
ChainResidueDetails

250835

PDB entries from 2026-03-18

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