SMTL ID : 3h6t.2 (1 other biounit)

Crystal structure of the iGluR2 ligand-binding core (S1S2J-N754S) in complex with glutamate and cyclothiazide at 2.25 A resolution

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.25 Å

Oligo State

homo-dimer

Ligands

2 x GLU: GLUTAMIC ACID(Non-covalent)

GLU.1: 11 residues within 4Å: Chain A: Y.61, P.89, L.90, T.91, R.96, L.138, G.141, S.142, T.143, E.193, Y.220 14 PLIP interactions: 11 interactions with chain A, 3 Ligand-Ligand interactions Hydrophobic interactions: A:Y.61, A:L.138 Hydrogen bonds: A:P.89, A:T.91, A:T.91, A:S.142, A:T.143, A:T.143, A:E.193, E.1, E.1, E.1 Water bridges: A:E.193 Salt bridges: A:R.96 GLU.12: 11 residues within 4Å: Chain B: Y.61, P.89, L.90, T.91, R.96, L.138, G.141, S.142, T.143, E.193, Y.220 14 PLIP interactions: 11 interactions with chain B, 3 Ligand-Ligand interactions Hydrophobic interactions: B:Y.61, B:L.138 Hydrogen bonds: B:P.89, B:T.91, B:T.91, B:S.142, B:T.143, B:T.143, B:E.193, E.12, E.12, E.12 Water bridges: B:E.193 Salt bridges: B:R.96

2 x CYZ: CYCLOTHIAZIDE(Non-covalent)

CYZ.2: 13 residues within 4Å: Chain A: K.104, P.105, M.107, S.108, L.239, S.242, L.247, D.248, K.251 Chain B: I.92, S.217, K.218, G.219 12 PLIP interactions: 7 interactions with chain A, 5 interactions with chain B Hydrophobic interactions: A:K.104, A:L.239, A:L.247, B:I.92, B:I.92, B:K.218 Hydrogen bonds: A:S.108, A:S.242, A:S.242, B:S.217, B:S.217 Water bridges: A:S.108 CYZ.13: 13 residues within 4Å: Chain A: I.92, S.217, K.218, G.219 Chain B: K.104, P.105, M.107, S.108, L.239, S.242, L.247, D.248, K.251 12 PLIP interactions: 7 interactions with chain B, 5 interactions with chain A Hydrophobic interactions: B:K.104, B:L.239, B:L.247, A:I.92, A:I.92, A:K.218 Hydrogen bonds: B:S.108, B:S.242, B:S.242, A:S.217, A:S.217 Water bridges: B:S.108

10 x ZN: ZINC ION(Non-covalent)

ZN.3: 5 residues within 4Å: Chain A: E.42, K.45, H.46, L.241, Q.244 3 PLIP interactions: 2 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:E.42, A:H.46, H2O.15 ZN.4: 3 residues within 4Å: Chain A: K.20, H.23, E.30 4 PLIP interactions: 3 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:H.23, A:E.30, A:E.30, H2O.13 ZN.5: 1 residues within 4Å: Chain A: D.156 2 PLIP interactions: 1 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:D.156, H2O.5 ZN.6: 1 residues within 4Å: Chain A: D.126 2 PLIP interactions: 1 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:D.126, H2O.15 ZN.7: 1 residues within 4Å: Chain A: E.201 No protein-ligand interaction detected (PLIP) ZN.14: 5 residues within 4Å: Chain B: E.42, K.45, H.46, L.241, Q.244 3 PLIP interactions: 2 interactions with chain B, 1 Ligand-Water interactions Metal complexes: B:E.42, B:H.46, H2O.30 ZN.15: 3 residues within 4Å: Chain B: K.20, H.23, E.30 4 PLIP interactions: 3 interactions with chain B, 1 Ligand-Water interactions Metal complexes: B:H.23, B:E.30, B:E.30, H2O.28 ZN.16: 1 residues within 4Å: Chain B: D.156 2 PLIP interactions: 1 interactions with chain B, 1 Ligand-Water interactions Metal complexes: B:D.156, H2O.20 ZN.17: 1 residues within 4Å: Chain B: D.126 2 PLIP interactions: 1 interactions with chain B, 1 Ligand-Water interactions Metal complexes: B:D.126, H2O.30 ZN.18: 1 residues within 4Å: Chain B: E.201 No protein-ligand interaction detected (PLIP)

6 x GOL: GLYCEROL(Non-functional Binders)

GOL.8: 1 residues within 4Å: Chain A: I.70 No protein-ligand interaction detected (PLIP) GOL.9: 2 residues within 4Å: Chain A: L.12, M.19 No protein-ligand interaction detected (PLIP) GOL.10: 3 residues within 4Å: Chain A: V.7, K.52, K.82 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:K.52, A:K.52 GOL.19: 1 residues within 4Å: Chain B: I.70 No protein-ligand interaction detected (PLIP) GOL.20: 2 residues within 4Å: Chain B: L.12, M.19 No protein-ligand interaction detected (PLIP) GOL.21: 3 residues within 4Å: Chain B: V.7, K.52, K.82 2 PLIP interactions: 2 interactions with chain B Hydrogen bonds: B:K.52, B:K.52

2 x CAC: CACODYLATE ION(Non-covalent)

CAC.11: 5 residues within 4Å: Chain A: R.163, A.165, E.166, S.168, F.170 1 PLIP interactions: 1 interactions with chain A Hydrogen bonds: A:E.166 CAC.22: 5 residues within 4Å: Chain B: R.163, A.165, E.166, S.168, F.170 1 PLIP interactions: 1 interactions with chain B Hydrogen bonds: B:E.166

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Hald, H. et al., Distinct structural features of cyclothiazide are responsible for effects on peak current amplitude and desensitization kinetics at iGluR2. J.Mol.Biol. (2009)

Release Date

2009-07-28

Peptides

Glutamate receptor 2: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
B

B
B

Glutamate receptor 2

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