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1MM6

crystal structure of the GluR2 ligand binding core (S1S2J) in complex with quisqualate in a non zinc crystal form at 2.15 angstroms resolution

Functional Information from GO Data
ChainGOidnamespacecontents
A0015276molecular_functionligand-gated monoatomic ion channel activity
A0016020cellular_componentmembrane
B0015276molecular_functionligand-gated monoatomic ion channel activity
B0016020cellular_componentmembrane
Functional Information from PDB Data
site_idAC1
Number of Residues7
DetailsBINDING SITE FOR RESIDUE SO4 A 600
ChainResidue
ASER140
ALYS144
AARG148
AHOH762
AHOH798
AHOH799
AHOH932

site_idAC2
Number of Residues4
DetailsBINDING SITE FOR RESIDUE SO4 B 601
ChainResidue
BHOH819
BHOH827
BARG31
BHOH720

site_idAC3
Number of Residues6
DetailsBINDING SITE FOR RESIDUE SO4 B 602
ChainResidue
BASP139
BSER140
BLYS144
BARG148
BHOH734
BHOH828

site_idAC4
Number of Residues13
DetailsBINDING SITE FOR RESIDUE QUS A 500
ChainResidue
ATYR61
APRO89
ALEU90
ATHR91
AARG96
ALEU138
AGLY141
ASER142
ATHR143
ALEU192
AGLU193
AHOH704
AHOH732

site_idAC5
Number of Residues15
DetailsBINDING SITE FOR RESIDUE QUS B 501
ChainResidue
BTYR61
BPRO89
BLEU90
BTHR91
BARG96
BLEU138
BGLY141
BSER142
BTHR143
BLEU192
BGLU193
BMET196
BTYR220
BHOH706
BHOH761

site_idAC6
Number of Residues3
DetailsBINDING SITE FOR RESIDUE GOL A 700
ChainResidue
AHIS46
ALYS240
AGLN244

site_idAC7
Number of Residues7
DetailsBINDING SITE FOR RESIDUE GOL B 701
ChainResidue
BGLU166
BPRO167
BGLN244
BGLY245
BLEU246
BLYS249
BHOH784

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

site_idSWS_FT_FI6
Number of Residues1
DetailsGlycosylation: {"description":"N-linked (GlcNAc...) asparagine","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

243083

PDB entries from 2025-10-15

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