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4AEI

Crystal structure of the AaHII-Fab4C1 complex

Functional Information from GO Data
ChainGOidnamespacecontents
A0005576cellular_componentextracellular region
A0006952biological_processdefense response
A0008200molecular_functionion channel inhibitor activity
A0017080molecular_functionsodium channel regulator activity
A0019871molecular_functionsodium channel inhibitor activity
A0044487biological_processvenom-mediated perturbation of transmission of nerve impulse
A0044493biological_processvenom-mediated inhibition of voltage-gated sodium channel activity
A0044742biological_processvenom-mediated increase of sensory perception of pain
A0090729molecular_functiontoxin activity
A0099106molecular_functionion channel regulator activity
B0005576cellular_componentextracellular region
B0006952biological_processdefense response
B0008200molecular_functionion channel inhibitor activity
B0017080molecular_functionsodium channel regulator activity
B0019871molecular_functionsodium channel inhibitor activity
B0044487biological_processvenom-mediated perturbation of transmission of nerve impulse
B0044493biological_processvenom-mediated inhibition of voltage-gated sodium channel activity
B0044742biological_processvenom-mediated increase of sensory perception of pain
B0090729molecular_functiontoxin activity
B0099106molecular_functionion channel regulator activity
C0005576cellular_componentextracellular region
C0006952biological_processdefense response
C0008200molecular_functionion channel inhibitor activity
C0017080molecular_functionsodium channel regulator activity
C0019871molecular_functionsodium channel inhibitor activity
C0044487biological_processvenom-mediated perturbation of transmission of nerve impulse
C0044493biological_processvenom-mediated inhibition of voltage-gated sodium channel activity
C0044742biological_processvenom-mediated increase of sensory perception of pain
C0090729molecular_functiontoxin activity
C0099106molecular_functionion channel regulator activity
Functional Information from PDB Data
site_idAC1
Number of Residues3
DetailsBINDING SITE FOR RESIDUE CL A 1065
ChainResidue
ATHR13
ALYS58
LTYR37

site_idAC2
Number of Residues3
DetailsBINDING SITE FOR RESIDUE CL B 1065
ChainResidue
BTHR13
BLYS58
MTYR37

site_idAC3
Number of Residues3
DetailsBINDING SITE FOR RESIDUE CL C 1065
ChainResidue
CTHR13
CLYS58
NTYR37

site_idAC4
Number of Residues3
DetailsBINDING SITE FOR RESIDUE CL I 1220
ChainResidue
ISER52
IGLY54
ISER56

site_idAC5
Number of Residues3
DetailsBINDING SITE FOR RESIDUE CL J 1219
ChainResidue
JSER52
JGLY54
JSER56

site_idAC6
Number of Residues4
DetailsBINDING SITE FOR RESIDUE CL H 1222
ChainResidue
HSER52
HGLY54
HSER56
HHOH2012

site_idAC7
Number of Residues6
DetailsBINDING SITE FOR RESIDUE EPE A 1066
ChainResidue
ACYS16
AGLY17
AARG18
ATYR21
LSER32
MSER68

site_idAC8
Number of Residues7
DetailsBINDING SITE FOR RESIDUE EPE B 1066
ChainResidue
BCYS16
BGLY17
BARG18
BTYR21
LSER68
LSER81
LARG82

site_idAC9
Number of Residues5
DetailsBINDING SITE FOR RESIDUE EPE C 1066
ChainResidue
CCYS16
CGLY17
CARG18
CTYR21
NSER32

Functional Information from PROSITE/UniProt
site_idPS00290
Number of Residues7
DetailsIG_MHC Immunoglobulins and major histocompatibility complex proteins signature. YTCEATH
ChainResidueDetails
LTYR197-HIS203

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues186
DetailsDomain: {"description":"LCN-type CS-alpha/beta","evidences":[{"source":"PROSITE-ProRule","id":"PRU01210","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues6
DetailsSite: {"description":"Key residue for Nav1.7/SCN9A site 3","evidences":[{"source":"PubMed","id":"30733386","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues3
DetailsModified residue: {"description":"Histidine amide","evidences":[{"source":"PubMed","id":"15725394","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

247536

PDB entries from 2026-01-14

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