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3U92

Crystal structure of the GluK3 ligand binding domain complex with kainate and zinc: P2221 form

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 Residues14
DetailsBINDING SITE FOR RESIDUE KAI A 258
ChainResidue
AGLU13
AASN172
AGLU189
AHOH270
AHOH285
AHOH353
ATYR61
APRO88
ATHR90
AARG95
AVAL137
AGLY140
AALA141
ATHR142

site_idAC2
Number of Residues4
DetailsBINDING SITE FOR RESIDUE ZN A 259
ChainResidue
AGLU194
AHIS243
ALYS246
AGLU247

site_idAC3
Number of Residues3
DetailsBINDING SITE FOR RESIDUE ZN A 260
ChainResidue
AHIS80
AHOH356
BHIS93

site_idAC4
Number of Residues3
DetailsBINDING SITE FOR RESIDUE ZN A 261
ChainResidue
AHIS45
AHOH451
AHOH460

site_idAC5
Number of Residues2
DetailsBINDING SITE FOR RESIDUE CL A 262
ChainResidue
AARG54
ALEU55

site_idAC6
Number of Residues13
DetailsBINDING SITE FOR RESIDUE KAI B 258
ChainResidue
BGLU13
BTYR61
BPRO88
BTHR90
BARG95
BGLY140
BALA141
BTHR142
BASN172
BGLU189
BHOH280
BHOH287
BHOH314

site_idAC7
Number of Residues4
DetailsBINDING SITE FOR RESIDUE ZN B 259
ChainResidue
AHIS93
AGLU96
BASP240
BHIS243

site_idAC8
Number of Residues3
DetailsBINDING SITE FOR RESIDUE ZN B 260
ChainResidue
BHOH335
BHOH336
BHOH361

site_idAC9
Number of Residues4
DetailsBINDING SITE FOR RESIDUE ZN B 261
ChainResidue
BGLU42
BHIS45
BLYS241
BHOH393

site_idBC1
Number of Residues3
DetailsBINDING SITE FOR RESIDUE ZN B 262
ChainResidue
BGLU238
BHOH321
BHOH396

site_idBC2
Number of Residues2
DetailsBINDING SITE FOR RESIDUE ZN B 263
ChainResidue
BHIS80
BHIS80

site_idBC3
Number of Residues2
DetailsBINDING SITE FOR RESIDUE CL B 264
ChainResidue
BARG31
BLEU55

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues12
DetailsBINDING: BINDING => ECO:0000269|PubMed:21907808, ECO:0007744|PDB:3S9E
ChainResidueDetails
APRO88
BALA141
BTHR142
BGLU189
ATHR90
AARG95
AALA141
ATHR142
AGLU189
BPRO88
BTHR90
BARG95

site_idSWS_FT_FI2
Number of Residues4
DetailsCARBOHYD: N-linked (GlcNAc...) asparagine => ECO:0000255
ChainResidueDetails
AASN3
AASN202
BASN3
BASN202

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PDB entries from 2025-07-02

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