SMTL ID : 3spi.1

Inward rectifier potassium channel Kir2.2 in complex with PIP2

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 3.31 Å

Oligo State

homo-tetramer

Ligands

16 x K: POTASSIUM ION(Non-covalent)

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.6, K.7, K.11, K.12, K.16, K.17 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.6, K.7, K.8, K.11, K.12, K.13, K.16, K.17, K.18 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.7, K.8, K.9, K.12, K.13, K.14, K.17, K.18, K.19 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.8, K.9, K.13, K.14, K.18, K.19 Ligand excluded by PLIP K.6: 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.7, K.11, K.12, K.16, K.17 Ligand excluded by PLIP K.7: 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.6, K.8, K.11, K.12, K.13, K.16, K.17, K.18 Ligand excluded by PLIP K.8: 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.7, K.9, K.12, K.13, K.14, K.17, K.18, K.19 Ligand excluded by PLIP K.9: 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.8, K.13, K.14, K.18, K.19 Ligand excluded by PLIP K.11: 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.6, K.7, K.12, K.16, K.17 Ligand excluded by PLIP K.12: 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.6, K.7, K.8, K.11, K.13, K.16, K.17, K.18 Ligand excluded by PLIP K.13: 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.7, K.8, K.9, K.12, K.14, K.17, K.18, K.19 Ligand excluded by PLIP K.14: 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.8, K.9, K.13, K.18, K.19 Ligand excluded by PLIP K.16: 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.6, K.7, K.11, K.12, K.17 Ligand excluded by PLIP K.17: 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.6, K.7, K.8, K.11, K.12, K.13, K.16, K.18 Ligand excluded by PLIP K.18: 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.7, K.8, K.9, K.12, K.13, K.14, K.17, K.19 Ligand excluded by PLIP K.19: 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.8, K.9, K.13, K.14, K.18 Ligand excluded by PLIP

4 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.5: 12 residues within 4Å: Chain A: D.41, I.42, R.43, W.44, R.45, L.48, K.148, R.151, K.153, K.154, Q.157 Chain D: F.140 14 PLIP interactions: 13 interactions with chain A, 1 interactions with chain D Hydrogen bonds: A:R.43, A:R.43, A:W.44, A:R.45, A:Q.157 Salt bridges: A:R.43, A:R.45, A:R.45, A:K.148, A:R.151, A:K.153, A:K.154, A:K.154 Hydrophobic interactions: D:F.140 PIO.10: 12 residues within 4Å: Chain B: D.41, I.42, R.43, W.44, R.45, L.48, K.148, R.151, K.153, K.154, Q.157 Chain C: F.140 14 PLIP interactions: 13 interactions with chain B, 1 interactions with chain C Hydrogen bonds: B:R.43, B:R.43, B:W.44, B:R.45, B:Q.157 Salt bridges: B:R.43, B:R.45, B:R.45, B:K.148, B:R.151, B:K.153, B:K.154, B:K.154 Hydrophobic interactions: C:F.140 PIO.15: 12 residues within 4Å: Chain A: F.140 Chain C: D.41, I.42, R.43, W.44, R.45, L.48, K.148, R.151, K.153, K.154, Q.157 14 PLIP interactions: 13 interactions with chain C, 1 interactions with chain A Hydrogen bonds: C:R.43, C:R.43, C:W.44, C:R.45, C:Q.157 Salt bridges: C:R.43, C:R.45, C:R.45, C:K.148, C:R.151, C:K.153, C:K.154, C:K.154 Hydrophobic interactions: A:F.140 PIO.20: 12 residues within 4Å: Chain B: F.140 Chain D: D.41, I.42, R.43, W.44, R.45, L.48, K.148, R.151, K.153, K.154, Q.157 14 PLIP interactions: 13 interactions with chain D, 1 interactions with chain B Hydrogen bonds: D:R.43, D:R.43, D:W.44, D:R.45, D:Q.157 Salt bridges: D:R.43, D:R.45, D:R.45, D:K.148, D:R.151, D:K.153, D:K.154, D:K.154 Hydrophobic interactions: B: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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