2XXH

Crystal structure of 1-(4-(2-oxo-2-(1-pyrrolidinyl)ethyl)phenyl)-3-(trifluoromethyl)-4,5,6,7-tetrahydro-1H-indazole in complex with the ligand binding domain of the Rat GluA2 receptor and glutamate at 1.5A resolution.

Functional Information from GO Data

Chain	GOid	namespace	contents
A	0015276	molecular_function	ligand-gated monoatomic ion channel activity
A	0016020	cellular_component	membrane
B	0015276	molecular_function	ligand-gated monoatomic ion channel activity
B	0016020	cellular_component	membrane
C	0015276	molecular_function	ligand-gated monoatomic ion channel activity
C	0016020	cellular_component	membrane

Functional Information from PDB Data

site_id	AC1
Number of Residues	14
Details	BINDING SITE FOR RESIDUE GLU A 301

Chain	Residue
A	TYR61
A	GLU193
A	TYR220
A	HOH2088
A	HOH2121
A	HOH2172
A	PRO89
A	LEU90
A	THR91
A	ARG96
A	LEU138
A	GLY141
A	SER142
A	THR143

---

site_id	AC2
Number of Residues	34
Details	BINDING SITE FOR RESIDUE 1NG A 310

Chain	Residue
A	ILE92
A	LYS104
A	PRO105
A	PHE106
A	SER108
A	SER217
A	LYS218
A	GLY219
A	LEU239
A	SER242
A	LEU247
A	HOH2071
A	HOH2072
A	HOH2137
A	HOH2140
A	HOH2152
A	HOH2165
A	HOH2173
A	HOH2174
C	ILE92
C	LYS104
C	PRO105
C	PHE106
C	SER108
C	SER217
C	LYS218
C	GLY219
C	LEU247
C	HOH2059
C	HOH2067
C	HOH2068
C	HOH2145
C	HOH2148
C	HOH2149

---

site_id	AC3
Number of Residues	13
Details	BINDING SITE FOR RESIDUE GLU B 301

Chain	Residue
B	TYR61
B	PRO89
B	LEU90
B	THR91
B	ARG96
B	GLY141
B	SER142
B	THR143
B	GLU193
B	TYR220
B	HOH2104
B	HOH2151
B	HOH2190

---

site_id	AC4
Number of Residues	21
Details	BINDING SITE FOR RESIDUE 1NG B 310

Chain	Residue
B	ILE92
B	LYS104
B	PRO105
B	PRO105
B	PHE106
B	SER108
B	SER217
B	SER217
B	LYS218
B	GLY219
B	LEU239
B	SER242
B	LEU247
B	HOH2076
B	HOH2082
B	HOH2084
B	HOH2178
B	HOH2187
B	HOH2191
B	HOH2192
B	HOH2192

---

site_id	AC5
Number of Residues	8
Details	BINDING SITE FOR RESIDUE SO4 B 1302

Chain	Residue
A	GLU42
A	HIS46
B	ARG163
B	ALA165
B	GLU166
B	SER168
B	ZN1303
B	HOH2193

---

site_id	AC6
Number of Residues	4
Details	BINDING SITE FOR RESIDUE ZN B 1303

Chain	Residue
A	GLU42
A	HIS46
B	GLU166
B	SO41302

---

site_id	AC7
Number of Residues	4
Details	BINDING SITE FOR RESIDUE ZN B 1304

Chain	Residue
B	HIS23
B	GLU30
B	HOH2194
C	HIS23

---

site_id	AC8
Number of Residues	5
Details	BINDING SITE FOR RESIDUE ZN B 1305

Chain	Residue
B	GLU42
B	HIS46
B	LEU241
B	HOH2195
A	GLU166

---

site_id	AC9
Number of Residues	14
Details	BINDING SITE FOR RESIDUE GLU C 301

Chain	Residue
C	TYR61
C	PRO89
C	LEU90
C	THR91
C	ARG96
C	LEU138
C	GLY141
C	SER142
C	THR143
C	GLU193
C	TYR220
C	HOH2082
C	HOH2113
C	HOH2147

---

site_id	BC1
Number of Residues	4
Details	BINDING SITE FOR RESIDUE ZN C 1302

Chain	Residue
A	HIS23
C	ASP65
C	HOH2150
C	HOH2151

---

site_id	BC2
Number of Residues	5
Details	BINDING SITE FOR RESIDUE ZN C 1303

Chain	Residue
C	GLU42
C	LYS45
C	HIS46
C	GLN244
C	HOH2152

---

Functional Information from SwissProt/UniProt

site_id	SWS_FT_FI1
Number of Residues	18
Details	BINDING: BINDING => ECO:0000269|PubMed:11086992, ECO:0000269|PubMed:16483599, ECO:0007744|PDB:1FTJ, ECO:0007744|PDB:2CMO

Chain	Residue	Details
A	PRO89
B	SER142
B	THR143
B	GLU193
C	PRO89
C	THR91
C	ARG96
C	SER142
C	THR143
C	GLU193
A	THR91
A	ARG96
A	SER142
A	THR143
A	GLU193
B	PRO89
B	THR91
B	ARG96

---

site_id	SWS_FT_FI2
Number of Residues	9
Details	SITE: Interaction with the cone snail toxin Con-ikot-ikot => ECO:0000269|PubMed:25103405

Chain	Residue	Details
A	ARG64
A	ARG148
A	LYS240
B	ARG64
B	ARG148
B	LYS240
C	ARG64
C	ARG148
C	LYS240

---

site_id	SWS_FT_FI3
Number of Residues	3
Details	SITE: Crucial to convey clamshell closure to channel opening => ECO:0000269|PubMed:25103405

Chain	Residue	Details
A	ILE121
B	ILE121
C	ILE121

---

site_id	SWS_FT_FI4
Number of Residues	3
Details	MOD_RES: Phosphoserine; by PKC => ECO:0000269|PubMed:8848293

Chain	Residue	Details
A	SER150
B	SER150
C	SER150

---

site_id	SWS_FT_FI5
Number of Residues	3
Details	MOD_RES: Phosphoserine; by PKG => ECO:0000269|PubMed:8848293

Chain	Residue	Details
A	SER184
B	SER184
C	SER184

---

site_id	SWS_FT_FI6
Number of Residues	3
Details	CARBOHYD: N-linked (GlcNAc...) asparagine => ECO:0000255

Chain	Residue	Details
A	ASN3
B	ASN3
C	ASN3

---