SMTL ID : 3spc.1

Inward rectifier potassium channel Kir2.2 in complex with dioctanoylglycerol pyrophosphate (DGPP)

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.45 Å

Oligo State

homo-tetramer

Ligands

24 x K: POTASSIUM ION(Non-covalent)(Non-functional Binders)

K.1: 15 residues within 4Å: Chain A: G.110, Y.111 Chain B: G.110, Y.111 Chain C: G.110, Y.111 Chain D: G.110, Y.111 Ligands: K.2, K.8, K.9, K.15, K.16, K.22, K.23 Ligand excluded by PLIP K.2: 19 residues within 4Å: Chain A: I.109, G.110 Chain B: I.109, G.110 Chain C: I.109, G.110 Chain D: I.109, G.110 Ligands: K.1, K.3, K.8, K.9, K.10, K.15, K.16, K.17, K.22, K.23, K.24 Ligand excluded by PLIP K.3: 19 residues within 4Å: Chain A: T.108, I.109 Chain B: T.108, I.109 Chain C: T.108, I.109 Chain D: T.108, I.109 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: 11 residues within 4Å: Chain A: T.108 Chain B: T.108 Chain C: T.108 Chain D: T.108 Ligands: K.3, K.10, K.11, K.17, K.18, K.24, K.25 Ligand excluded by PLIP K.5: 3 residues within 4Å: Ligands: K.12, K.19, K.26 Ligand excluded by PLIP K.6: 3 residues within 4Å: Ligands: K.13, K.20, K.27 Ligand excluded by PLIP K.8: 15 residues within 4Å: Chain A: G.110, Y.111 Chain B: G.110, Y.111 Chain C: G.110, Y.111 Chain D: G.110, Y.111 Ligands: K.1, K.2, K.9, K.15, K.16, K.22, K.23 Ligand excluded by PLIP K.9: 19 residues within 4Å: Chain A: I.109, G.110 Chain B: I.109, G.110 Chain C: I.109, G.110 Chain D: I.109, G.110 Ligands: K.1, K.2, K.3, K.8, K.10, K.15, K.16, K.17, K.22, K.23, K.24 Ligand excluded by PLIP K.10: 19 residues within 4Å: Chain A: T.108, I.109 Chain B: T.108, I.109 Chain C: T.108, I.109 Chain D: T.108, I.109 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: 11 residues within 4Å: Chain A: T.108 Chain B: T.108 Chain C: T.108 Chain D: T.108 Ligands: K.3, K.4, K.10, K.17, K.18, K.24, K.25 Ligand excluded by PLIP K.12: 3 residues within 4Å: Ligands: K.5, K.19, K.26 Ligand excluded by PLIP K.13: 3 residues within 4Å: Ligands: K.6, K.20, K.27 Ligand excluded by PLIP K.15: 15 residues within 4Å: Chain A: G.110, Y.111 Chain B: G.110, Y.111 Chain C: G.110, Y.111 Chain D: G.110, Y.111 Ligands: K.1, K.2, K.8, K.9, K.16, K.22, K.23 Ligand excluded by PLIP K.16: 19 residues within 4Å: Chain A: I.109, G.110 Chain B: I.109, G.110 Chain C: I.109, G.110 Chain D: I.109, G.110 Ligands: K.1, K.2, K.3, K.8, K.9, K.10, K.15, K.17, K.22, K.23, K.24 Ligand excluded by PLIP K.17: 19 residues within 4Å: Chain A: T.108, I.109 Chain B: T.108, I.109 Chain C: T.108, I.109 Chain D: T.108, I.109 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: 11 residues within 4Å: Chain A: T.108 Chain B: T.108 Chain C: T.108 Chain D: T.108 Ligands: K.3, K.4, K.10, K.11, K.17, K.24, K.25 Ligand excluded by PLIP K.19: 3 residues within 4Å: Ligands: K.5, K.12, K.26 Ligand excluded by PLIP K.20: 3 residues within 4Å: Ligands: K.6, K.13, K.27 Ligand excluded by PLIP K.22: 15 residues within 4Å: Chain A: G.110, Y.111 Chain B: G.110, Y.111 Chain C: G.110, Y.111 Chain D: G.110, Y.111 Ligands: K.1, K.2, K.8, K.9, K.15, K.16, K.23 Ligand excluded by PLIP K.23: 19 residues within 4Å: Chain A: I.109, G.110 Chain B: I.109, G.110 Chain C: I.109, G.110 Chain D: I.109, G.110 Ligands: K.1, K.2, K.3, K.8, K.9, K.10, K.15, K.16, K.17, K.22, K.24 Ligand excluded by PLIP K.24: 19 residues within 4Å: Chain A: T.108, I.109 Chain B: T.108, I.109 Chain C: T.108, I.109 Chain D: T.108, I.109 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: 11 residues within 4Å: Chain A: T.108 Chain B: T.108 Chain C: T.108 Chain D: T.108 Ligands: K.3, K.4, K.10, K.11, K.17, K.18, K.24 Ligand excluded by PLIP K.26: 3 residues within 4Å: Ligands: K.5, K.12, K.19 Ligand excluded by PLIP K.27: 3 residues within 4Å: Ligands: K.6, K.13, K.20 Ligand excluded by PLIP

4 x P8P: (2R)-3-{[(R)-hydroxy(phosphonooxy)phosphoryl]oxy}propane-1,2-diyl dioctanoate(Non-covalent)

P8P.7: 4 residues within 4Å: Chain A: R.43, W.44, R.45 Chain C: F.140 8 PLIP interactions: 6 interactions with chain A, 2 interactions with chain C Hydrogen bonds: A:W.44, A:R.45 Salt bridges: A:R.43, A:R.43, A:R.45, A:K.148 Hydrophobic interactions: C:F.140, C:F.140 P8P.14: 4 residues within 4Å: Chain B: R.43, W.44, R.45 Chain D: F.140 8 PLIP interactions: 6 interactions with chain B, 2 interactions with chain D Hydrogen bonds: B:W.44, B:R.45 Salt bridges: B:R.43, B:R.43, B:R.45, B:K.148 Hydrophobic interactions: D:F.140, D:F.140 P8P.21: 4 residues within 4Å: Chain B: F.140 Chain C: R.43, W.44, R.45 8 PLIP interactions: 6 interactions with chain C, 2 interactions with chain B Hydrogen bonds: C:W.44, C:R.45 Salt bridges: C:R.43, C:R.43, C:R.45, C:K.148 Hydrophobic interactions: B:F.140, B:F.140 P8P.28: 4 residues within 4Å: Chain A: F.140 Chain D: R.43, W.44, R.45 8 PLIP interactions: 6 interactions with chain D, 2 interactions with chain A Hydrogen bonds: D:W.44, D:R.45 Salt bridges: D:R.43, D:R.43, D:R.45, D:K.148 Hydrophobic interactions: A:F.140, A:F.140

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Hansen, S.B. et al., Structural basis of PIP(2) activation of the classical inward rectifier K(+) channel Kir2.2. Nature (2011)

Release Date

2011-08-24

Peptides

Inward-rectifier K+ channel Kir2.2: 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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Inward-rectifier K+ channel Kir2.2

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