SMTL ID : 8w4u.1

human KCNQ2-CaM in complex with PIP2 and HN37

Coordinates

PDB Format

Method

ELECTRON MICROSCOPY

Oligo State

hetero-4-4-mer

Ligands

4 x 9MF: methyl N-[4-[(4-fluorophenyl)methyl-prop-2-ynyl-amino]-2,6-dimethyl-phenyl]carbamate(Non-covalent)

9MF.1: 16 residues within 4Å: Chain A: A.173, W.174, G.177, F.178, L.181, L.210, F.242, F.243, P.246, L.250 Chain B: L.237, I.238, V.240, S.241, F.242 Chain F: F.42 6 PLIP interactions: 5 interactions with chain A, 1 interactions with chain B Hydrophobic interactions: A:F.243, A:P.246 Hydrogen bonds: A:W.174, B:L.237 pi-Stacking: A:W.174, A:F.178 9MF.3: 16 residues within 4Å: Chain A: F.42 Chain B: A.173, W.174, G.177, F.178, L.181, L.210, F.242, F.243, P.246, L.250 Chain D: L.237, I.238, V.240, S.241, F.242 6 PLIP interactions: 5 interactions with chain B, 1 interactions with chain D Hydrophobic interactions: B:F.243, B:P.246 Hydrogen bonds: B:W.174, D:L.237 pi-Stacking: B:W.174, B:F.178 9MF.5: 16 residues within 4Å: Chain B: F.42 Chain D: A.173, W.174, G.177, F.178, L.181, L.210, F.242, F.243, P.246, L.250 Chain F: L.237, I.238, V.240, S.241, F.242 6 PLIP interactions: 5 interactions with chain D, 1 interactions with chain F Hydrophobic interactions: D:F.243, D:P.246 Hydrogen bonds: D:W.174, F:L.237 pi-Stacking: D:W.174, D:F.178 9MF.7: 15 residues within 4Å: Chain A: L.237, I.238, V.240, S.241, F.242 Chain D: F.42 Chain F: A.173, W.174, G.177, F.178, L.181, F.242, F.243, P.246, L.250 6 PLIP interactions: 5 interactions with chain F, 1 interactions with chain A Hydrophobic interactions: F:F.243, F:P.246 Hydrogen bonds: F:W.174, A:L.237 pi-Stacking: F:W.174, F:F.178

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: 14 residues within 4Å: Chain A: R.25, F.31, F.38, M.146, M.149, D.150, R.152, T.155, K.265 Chain B: S.167, K.168, V.171, W.174, Y.175 13 PLIP interactions: 8 interactions with chain A, 5 interactions with chain B Hydrophobic interactions: A:F.31, A:F.38, A:M.149, A:T.155, B:V.171, B:W.174, B:Y.175 Hydrogen bonds: A:R.152, A:R.152 Salt bridges: A:R.25, A:K.265, B:K.168, B:K.168 PIO.4: 14 residues within 4Å: Chain B: R.25, F.31, F.38, M.146, M.149, D.150, R.152, T.155, K.265 Chain D: S.167, K.168, V.171, W.174, Y.175 11 PLIP interactions: 8 interactions with chain B, 3 interactions with chain D Hydrophobic interactions: B:F.31, B:F.38, B:M.149, B:T.155, D:W.174, D:Y.175 Hydrogen bonds: B:R.152, B:R.152 Salt bridges: B:R.25, B:K.265, D:K.168 PIO.6: 14 residues within 4Å: Chain D: R.25, F.31, F.38, M.146, M.149, D.150, R.152, T.155, K.265 Chain F: S.167, K.168, V.171, W.174, Y.175 12 PLIP interactions: 4 interactions with chain F, 8 interactions with chain D Hydrophobic interactions: F:V.171, F:W.174, D:F.31, D:F.38, D:M.149, D:T.155 Salt bridges: F:K.168, F:K.168, D:R.25, D:K.265 Hydrogen bonds: D:R.152, D:R.152 PIO.8: 14 residues within 4Å: Chain A: S.167, K.168, V.171, W.174, Y.175 Chain F: R.25, F.31, F.38, M.146, M.149, D.150, R.152, T.155, K.265 13 PLIP interactions: 8 interactions with chain F, 5 interactions with chain A Hydrophobic interactions: F:F.31, F:F.38, F:M.149, F:T.155, A:V.171, A:W.174, A:Y.175 Hydrogen bonds: F:R.152, F:R.152 Salt bridges: F:R.25, F:K.265, A:K.168, 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
F

G
H

H
E

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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