SMTL ID : 3syq.1

Crystal structure of the G protein-gated inward rectifier K+ channel GIRK2 (Kir3.2) R201A mutant in complex with PIP2

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 3.44 Å

Oligo State

homo-tetramer

Ligands

2 x PIO: [(2R)-2-octanoyloxy-3-[oxidanyl-[(1R,2R,3S,4R,5R,6S)-2,3,6-tris(oxidanyl)-4,5-diphosphonooxy-cyclohexyl]oxy-phosphoryl]oxy-propyl] octanoate(Non-covalent)

PIO.1: 6 residues within 4Å: Chain A: V.38, L.40, K.41, W.42, R.43, K.145 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:W.42, A:R.43 Salt bridges: A:K.145 PIO.6: 6 residues within 4Å: Chain C: V.38, L.40, K.41, W.42, R.43, K.145 3 PLIP interactions: 3 interactions with chain C Hydrogen bonds: C:W.42, C:R.43 Salt bridges: C:K.145

8 x K: POTASSIUM ION(Non-covalent)

K.2: 11 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.7, K.8 2 PLIP interactions: 1 interactions with chain A, 1 interactions with chain C Metal complexes: A:G.107, C:G.107 K.3: 13 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.7, K.8, K.9 5 PLIP interactions: 2 interactions with chain A, 1 interactions with chain C, 1 interactions with chain D, 1 interactions with chain B Metal complexes: A:I.106, A:G.107, C:G.107, D:G.107, B:G.107 K.4: 13 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.8, K.9, K.10 5 PLIP interactions: 1 interactions with chain D, 1 interactions with chain B, 1 interactions with chain A, 2 interactions with chain C Metal complexes: D:I.106, B:I.106, A:T.105, C:T.105, C:I.106 K.5: 7 residues within 4Å: Chain A: T.105 Chain B: T.105 Chain C: T.105 Chain D: T.105 Ligands: K.4, K.9, K.10 5 PLIP interactions: 1 interactions with chain D, 1 interactions with chain A, 2 interactions with chain C, 1 interactions with chain B Metal complexes: D:T.105, A:T.105, C:T.105, C:T.105, B:T.105 K.7: 11 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.8 2 PLIP interactions: 1 interactions with chain A, 1 interactions with chain C Metal complexes: A:G.107, C:G.107 K.8: 13 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.7, K.9 5 PLIP interactions: 1 interactions with chain A, 2 interactions with chain C, 1 interactions with chain D, 1 interactions with chain B Metal complexes: A:G.107, C:I.106, C:G.107, D:G.107, B:G.107 K.9: 13 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.8, K.10 5 PLIP interactions: 1 interactions with chain D, 1 interactions with chain B, 2 interactions with chain A, 1 interactions with chain C Metal complexes: D:I.106, B:I.106, A:T.105, A:I.106, C:T.105 K.10: 7 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.9 5 PLIP interactions: 1 interactions with chain D, 2 interactions with chain A, 1 interactions with chain C, 1 interactions with chain B Metal complexes: D:T.105, A:T.105, A:T.105, C:T.105, B:T.105

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
B

C
A

D
B

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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