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3S9E

Crystal structure of the kainate receptor GluK3 ligand binding domain in complex with (S)-glutamate

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 Residues13
DetailsBINDING SITE FOR RESIDUE GLU A 259
ChainResidue
ATYR63
AHOH277
AHOH296
AHOH346
AHOH384
APRO90
ALEU91
ATHR92
AARG97
AGLY142
AALA143
ATHR144
AGLU191

site_idAC2
Number of Residues7
DetailsBINDING SITE FOR RESIDUE GOL A 260
ChainResidue
ALYS99
AHOH355
AHOH508
AHOH759
BTHR109
BHOH309
BHOH558

site_idAC3
Number of Residues4
DetailsBINDING SITE FOR RESIDUE CL A 261
ChainResidue
AGLN239
AASP242
ALEU244
AHIS245

site_idAC4
Number of Residues2
DetailsBINDING SITE FOR RESIDUE CL A 262
ChainResidue
AARG33
ALEU57

site_idAC5
Number of Residues4
DetailsBINDING SITE FOR RESIDUE PO4 A 263
ChainResidue
ALYS62
ALYS140
AHOH405
AHOH751

site_idAC6
Number of Residues2
DetailsBINDING SITE FOR RESIDUE PO4 A 264
ChainResidue
ALYS250
BLYS250

site_idAC7
Number of Residues6
DetailsBINDING SITE FOR RESIDUE NA A 265
ChainResidue
ASER24
AARG26
AHOH348
AHOH362
AHOH369
BHOH546

site_idAC8
Number of Residues13
DetailsBINDING SITE FOR RESIDUE GLU B 259
ChainResidue
BTYR63
BPRO90
BLEU91
BTHR92
BARG97
BGLY142
BALA143
BTHR144
BGLU191
BHOH269
BHOH276
BHOH330
BHOH371

site_idAC9
Number of Residues4
DetailsBINDING SITE FOR RESIDUE CL B 260
ChainResidue
BGLN239
BASP242
BLEU244
BHIS245

site_idBC1
Number of Residues3
DetailsBINDING SITE FOR RESIDUE CL B 261
ChainResidue
BARG33
BLEU57
BHOH809

site_idBC2
Number of Residues3
DetailsBINDING SITE FOR RESIDUE PO4 B 262
ChainResidue
BLYS62
BLYS140
BHOH754

site_idBC3
Number of Residues7
DetailsBINDING SITE FOR RESIDUE NA B 263
ChainResidue
BSER24
BARG26
BHOH304
BHOH359
BHOH405
BHOH480
BHOH484

site_idBC4
Number of Residues8
DetailsBINDING SITE FOR RESIDUE NA B 264
ChainResidue
AASN5
ASER52
AHOH266
AHOH442
BASN5
BSER52
BHOH265
BHOH668

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues12
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"21907808","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"3S9E","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues4
DetailsGlycosylation: {"description":"N-linked (GlcNAc...) asparagine","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

245663

PDB entries from 2025-12-03

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