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4GXS

Ligand binding domain of GluA2 (AMPA/glutamate receptor) bound to (-)-kaitocephalin

Functional Information from GO Data
ChainGOidnamespacecontents
B0015276molecular_functionligand-gated monoatomic ion channel activity
B0016020cellular_componentmembrane
D0015276molecular_functionligand-gated monoatomic ion channel activity
D0016020cellular_componentmembrane
Functional Information from PDB Data
site_idAC1
Number of Residues15
DetailsBINDING SITE FOR RESIDUE 0YS B 301
ChainResidue
BTYR61
BGLU145
BGLU193
BHOH454
BHOH455
BHOH514
BHOH550
BGLY62
BPRO89
BLEU90
BTHR91
BTHR93
BARG96
BGLY141
BSER142

site_idAC2
Number of Residues2
DetailsBINDING SITE FOR RESIDUE ZN B 302
ChainResidue
BGLU42
BHIS46

site_idAC3
Number of Residues19
DetailsBINDING SITE FOR RESIDUE 0YS D 301
ChainResidue
DLYS60
DTYR61
DGLY62
DPRO89
DLEU90
DTHR91
DTHR93
DARG96
DLEU138
DSER140
DGLY141
DSER142
DGLU145
DGLU193
DTYR220
DHOH419
DHOH484
DHOH551
DHOH605

site_idAC4
Number of Residues2
DetailsBINDING SITE FOR RESIDUE ZN D 302
ChainResidue
DGLU42
DHIS46

site_idAC5
Number of Residues4
DetailsBINDING SITE FOR RESIDUE ZN D 303
ChainResidue
BHIS23
BGLU30
DHIS23
DGLU30

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues12
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"11086992","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"16483599","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"1FTJ","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"2CMO","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues6
DetailsSite: {"description":"Interaction with the cone snail toxin Con-ikot-ikot","evidences":[{"source":"PubMed","id":"25103405","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues2
DetailsSite: {"description":"Crucial to convey clamshell closure to channel opening","evidences":[{"source":"PubMed","id":"25103405","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues2
DetailsModified residue: {"description":"Phosphoserine; by PKC","evidences":[{"source":"PubMed","id":"8848293","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues2
DetailsModified residue: {"description":"Phosphoserine; by PKG","evidences":[{"source":"PubMed","id":"8848293","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

247536

PDB entries from 2026-01-14

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