SMTL ID : 3syo.1

Crystal structure of the G protein-gated inward rectifier K+ channel GIRK2 (Kir3.2) in complex with sodium

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 3.54 Å

Oligo State

homo-tetramer

Ligands

4 x NA: SODIUM ION(Non-functional Binders)

NA.1: 5 residues within 4Å: Chain A: D.179, R.181, N.182, S.183, L.226 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:D.179, A:N.182 NA.8: 5 residues within 4Å: Chain B: D.179, R.181, N.182, S.183, L.226 2 PLIP interactions: 2 interactions with chain B Hydrogen bonds: B:D.179, B:D.179 NA.15: 5 residues within 4Å: Chain C: D.179, R.181, N.182, S.183, L.226 2 PLIP interactions: 2 interactions with chain C Hydrogen bonds: C:D.179, C:N.182 NA.22: 5 residues within 4Å: Chain D: D.179, R.181, N.182, S.183, L.226 2 PLIP interactions: 2 interactions with chain D Hydrogen bonds: D:D.179, D:N.182

24 x K: POTASSIUM ION(Non-covalent)

K.2: 15 residues within 4Å: Chain A: G.107, Y.108 Chain B: G.107, Y.108 Chain C: G.107, Y.108 Chain D: G.107, Y.108 Ligands: K.3, K.9, K.10, K.16, K.17, K.23, K.24 Ligand excluded by PLIP K.3: 19 residues within 4Å: Chain A: I.106, G.107 Chain B: I.106, G.107 Chain C: I.106, G.107 Chain D: I.106, G.107 Ligands: K.2, K.4, K.9, K.10, K.11, K.16, K.17, K.18, K.23, K.24, K.25 Ligand excluded by PLIP K.4: 19 residues within 4Å: Chain A: T.105, I.106 Chain B: T.105, I.106 Chain C: T.105, I.106 Chain D: T.105, I.106 Ligands: K.3, K.5, K.10, K.11, K.12, K.17, K.18, K.19, K.24, K.25, K.26 Ligand excluded by PLIP K.5: 11 residues within 4Å: Chain A: T.105 Chain B: T.105 Chain C: T.105 Chain D: T.105 Ligands: K.4, K.11, K.12, K.18, K.19, K.25, K.26 Ligand excluded by PLIP K.6: 7 residues within 4Å: Chain A: G.269 Chain B: G.269 Chain C: G.269 Chain D: G.269 Ligands: K.13, K.20, K.27 Ligand excluded by PLIP K.7: 3 residues within 4Å: Chain A: Y.217 Ligands: K.21, K.28 Ligand excluded by PLIP K.9: 15 residues within 4Å: Chain A: G.107, Y.108 Chain B: G.107, Y.108 Chain C: G.107, Y.108 Chain D: G.107, Y.108 Ligands: K.2, K.3, K.10, K.16, K.17, K.23, K.24 Ligand excluded by PLIP K.10: 19 residues within 4Å: Chain A: I.106, G.107 Chain B: I.106, G.107 Chain C: I.106, G.107 Chain D: I.106, G.107 Ligands: K.2, K.3, K.4, K.9, K.11, K.16, K.17, K.18, K.23, K.24, K.25 Ligand excluded by PLIP K.11: 19 residues within 4Å: Chain A: T.105, I.106 Chain B: T.105, I.106 Chain C: T.105, I.106 Chain D: T.105, I.106 Ligands: K.3, K.4, K.5, K.10, K.12, K.17, K.18, K.19, K.24, K.25, K.26 Ligand excluded by PLIP K.12: 11 residues within 4Å: Chain A: T.105 Chain B: T.105 Chain C: T.105 Chain D: T.105 Ligands: K.4, K.5, K.11, K.18, K.19, K.25, K.26 Ligand excluded by PLIP K.13: 7 residues within 4Å: Chain A: G.269 Chain B: G.269 Chain C: G.269 Chain D: G.269 Ligands: K.6, K.20, K.27 Ligand excluded by PLIP K.14: 3 residues within 4Å: Chain B: Y.217 Ligands: K.21, K.28 Ligand excluded by PLIP K.16: 15 residues within 4Å: Chain A: G.107, Y.108 Chain B: G.107, Y.108 Chain C: G.107, Y.108 Chain D: G.107, Y.108 Ligands: K.2, K.3, K.9, K.10, K.17, K.23, K.24 Ligand excluded by PLIP K.17: 19 residues within 4Å: Chain A: I.106, G.107 Chain B: I.106, G.107 Chain C: I.106, G.107 Chain D: I.106, G.107 Ligands: K.2, K.3, K.4, K.9, K.10, K.11, K.16, K.18, K.23, K.24, K.25 Ligand excluded by PLIP K.18: 19 residues within 4Å: Chain A: T.105, I.106 Chain B: T.105, I.106 Chain C: T.105, I.106 Chain D: T.105, I.106 Ligands: K.3, K.4, K.5, K.10, K.11, K.12, K.17, K.19, K.24, K.25, K.26 Ligand excluded by PLIP K.19: 11 residues within 4Å: Chain A: T.105 Chain B: T.105 Chain C: T.105 Chain D: T.105 Ligands: K.4, K.5, K.11, K.12, K.18, K.25, K.26 Ligand excluded by PLIP K.20: 7 residues within 4Å: Chain A: G.269 Chain B: G.269 Chain C: G.269 Chain D: G.269 Ligands: K.6, K.13, K.27 Ligand excluded by PLIP K.21: 3 residues within 4Å: Chain C: Y.217 Ligands: K.7, K.14 Ligand excluded by PLIP K.23: 15 residues within 4Å: Chain A: G.107, Y.108 Chain B: G.107, Y.108 Chain C: G.107, Y.108 Chain D: G.107, Y.108 Ligands: K.2, K.3, K.9, K.10, K.16, K.17, K.24 Ligand excluded by PLIP K.24: 19 residues within 4Å: Chain A: I.106, G.107 Chain B: I.106, G.107 Chain C: I.106, G.107 Chain D: I.106, G.107 Ligands: K.2, K.3, K.4, K.9, K.10, K.11, K.16, K.17, K.18, K.23, K.25 Ligand excluded by PLIP K.25: 19 residues within 4Å: Chain A: T.105, I.106 Chain B: T.105, I.106 Chain C: T.105, I.106 Chain D: T.105, I.106 Ligands: K.3, K.4, K.5, K.10, K.11, K.12, K.17, K.18, K.19, K.24, K.26 Ligand excluded by PLIP K.26: 11 residues within 4Å: Chain A: T.105 Chain B: T.105 Chain C: T.105 Chain D: T.105 Ligands: K.4, K.5, K.11, K.12, K.18, K.19, K.25 Ligand excluded by PLIP K.27: 7 residues within 4Å: Chain A: G.269 Chain B: G.269 Chain C: G.269 Chain D: G.269 Ligands: K.6, K.13, K.20 Ligand excluded by PLIP K.28: 3 residues within 4Å: Chain D: Y.217 Ligands: K.7, K.14 Ligand excluded by PLIP

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Whorton, M.R. et al., Crystal Structure of the Mammalian GIRK2 K(+) Channel and Gating Regulation by G Proteins, PIP(2), and Sodium. Cell(Cambridge,Mass.) (2011)

Release Date

2011-10-12

Peptides

G protein-activated inward rectifier potassium channel 2: ABCD

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
A

C
A

D
A

Membrane

We predict this structure to be a membrane protein.
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G protein-activated inward rectifier potassium channel 2

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