SMTL ID : 8j02.1

Human KCNQ2(F104A)-CaM-PIP2-CBD complex in state II

Coordinates

PDB Format

Method

ELECTRON MICROSCOPY

Oligo State

hetero-4-4-mer

Ligands

4 x P0T: cannabidiol(Non-covalent)

P0T.1: 17 residues within 4Å: Chain A: L.237, I.238, S.241, F.242 Chain F: L.159, V.163, L.170, A.173, W.174, G.177, F.178, L.181, F.242, F.243, P.246, L.250 Ligands: PIO.5 9 PLIP interactions: 2 interactions with chain A, 7 interactions with chain F Hydrophobic interactions: A:L.237, A:F.242, F:L.170, F:W.174, F:F.178, F:F.243, F:F.243, F:L.250 Hydrogen bonds: F:L.170 P0T.4: 17 residues within 4Å: Chain A: L.159, V.163, L.170, A.173, W.174, G.177, F.178, L.181, F.242, F.243, P.246, L.250 Chain B: L.237, I.238, S.241, F.242 Ligands: PIO.7 9 PLIP interactions: 7 interactions with chain A, 2 interactions with chain B Hydrophobic interactions: A:L.170, A:W.174, A:F.178, A:F.243, A:F.243, A:L.250, B:L.237, B:F.242 Hydrogen bonds: A:L.170 P0T.6: 17 residues within 4Å: Chain B: L.159, V.163, L.170, A.173, W.174, G.177, F.178, L.181, F.242, F.243, P.246, L.250 Chain D: L.237, I.238, S.241, F.242 Ligands: PIO.2 9 PLIP interactions: 2 interactions with chain D, 7 interactions with chain B Hydrophobic interactions: D:L.237, D:F.242, B:L.170, B:W.174, B:F.178, B:F.243, B:F.243, B:L.250 Hydrogen bonds: B:L.170 P0T.8: 17 residues within 4Å: Chain D: L.159, V.163, L.170, A.173, W.174, G.177, F.178, L.181, F.242, F.243, P.246, L.250 Chain F: L.237, I.238, S.241, F.242 Ligands: PIO.3 9 PLIP interactions: 7 interactions with chain D, 2 interactions with chain F Hydrophobic interactions: D:L.170, D:W.174, D:F.178, D:F.243, D:F.243, D:L.250, F:L.237, F:F.242 Hydrogen bonds: D:L.170

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.2: 16 residues within 4Å: Chain A: F.31, A.35, F.38, M.146, M.149, D.150, R.152, G.154, T.155, K.265 Chain B: S.167, K.168, V.171, W.174, Y.175 Ligands: P0T.6 5 PLIP interactions: 2 interactions with chain B, 3 interactions with chain A Hydrophobic interactions: B:Y.175, A:F.38, A:T.155 Salt bridges: B:K.168 Hydrogen bonds: A:R.152 PIO.3: 16 residues within 4Å: Chain B: F.31, A.35, F.38, M.146, M.149, D.150, R.152, G.154, T.155, K.265 Chain D: S.167, K.168, V.171, W.174, Y.175 Ligands: P0T.8 5 PLIP interactions: 2 interactions with chain D, 3 interactions with chain B Hydrophobic interactions: D:Y.175, B:F.38, B:T.155 Salt bridges: D:K.168 Hydrogen bonds: B:R.152 PIO.5: 16 residues within 4Å: Chain D: F.31, A.35, F.38, M.146, M.149, D.150, R.152, G.154, T.155, K.265 Chain F: S.167, K.168, V.171, W.174, Y.175 Ligands: P0T.1 5 PLIP interactions: 3 interactions with chain D, 2 interactions with chain F Hydrophobic interactions: D:F.38, D:T.155, F:Y.175 Hydrogen bonds: D:R.152 Salt bridges: F:K.168 PIO.7: 16 residues within 4Å: Chain A: S.167, K.168, V.171, W.174, Y.175 Chain F: F.31, A.35, F.38, M.146, M.149, D.150, R.152, G.154, T.155, K.265 Ligands: P0T.4 5 PLIP interactions: 3 interactions with chain F, 2 interactions with chain A Hydrophobic interactions: F:F.38, F:T.155, A:Y.175 Hydrogen bonds: F:R.152 Salt bridges: A:K.168

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Ma, D. et al., Ligand activation mechanisms of human KCNQ2 channel. Nat Commun (2023)

Release Date

2023-12-13

Peptides

Potassium voltage-gated channel subfamily KQT member 2: ABDF
Calmodulin-1: CEGH

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

D
D

F
G

C
C

E
E

G
H

H
F

Membrane

We predict this structure to be a membrane protein.
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Potassium voltage-gated channel subfamily KQT member 2

Calmodulin-1

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