SMTL ID : 7cal.1

Cryo-EM Structure of the Hyperpolarization-Activated Inwardly Rectifying Potassium Channel KAT1 from Arabidopsis

Coordinates

PDB Format Compare

Method

ELECTRON MICROSCOPY

Oligo State

homo-tetramer

Ligands

4 x 3PE: 1,2-DIACYL-SN-GLYCERO-3-PHOSPHOETHANOLAMINE(Covalent)

3PE.1: 21 residues within 4Å: Chain A: W.75, L.175, S.179, R.197, K.200, S.203, V.204, L.206, F.207, H.210, M.282, F.283, G.286, L.287, Y.290 Chain B: I.202, L.206, I.209, W.302 Ligands: 3PE.2, 3PE.4 14 PLIP interactions: 11 interactions with chain A, 3 interactions with chain B Hydrophobic interactions: A:L.175, A:V.204, A:F.207, A:H.210, A:M.282, A:F.283, A:Y.290, B:I.202, B:L.206, B:I.209 Salt bridges: A:R.197, A:K.200, A:K.200, A:K.200 3PE.2: 17 residues within 4Å: Chain B: W.75, S.179, R.197, K.200, S.203, V.204, L.206, F.207, H.210, L.251, M.282, F.283, G.286, Y.290 Chain C: L.206, W.302 Ligands: 3PE.1 10 PLIP interactions: 9 interactions with chain B, 1 interactions with chain C Hydrophobic interactions: B:V.204, B:L.206, B:F.207, B:H.210, B:L.251, B:Y.290, C:L.206 Salt bridges: B:R.197, B:K.200, B:K.200 3PE.3: 16 residues within 4Å: Chain C: W.75, L.175, S.179, R.197, K.200, S.203, V.204, L.206, F.207, H.210, L.251, M.282, F.283, G.286, Y.290 Chain D: W.302 11 PLIP interactions: 11 interactions with chain C Hydrophobic interactions: C:L.175, C:V.204, C:F.207, C:H.210, C:L.251, C:F.283, C:F.283 Salt bridges: C:R.197, C:K.200, C:K.200, C:K.200 3PE.4: 17 residues within 4Å: Chain A: W.302 Chain D: W.75, S.179, R.197, K.200, S.203, V.204, L.206, F.207, H.210, L.251, F.279, M.282, F.283, G.286, Y.290 Ligands: 3PE.1 11 PLIP interactions: 11 interactions with chain D Hydrophobic interactions: D:V.204, D:L.206, D:F.207, D:H.210, D:L.251, D:F.279, D:M.282, D:Y.290 Salt bridges: D:R.197, D:K.200, D:K.200

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Li, S. et al., Cryo-EM structure of the hyperpolarization-activated inwardly rectifying potassium channel KAT1 from Arabidopsis. Cell Res. (2020)

Release Date

2020-07-29

Peptides

Potassium channel KAT1: ABCD

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

C
C

D
D

Membrane

We predict this structure to be a membrane protein.
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Potassium channel KAT1