SMTL ID : 7tci.1

Structure of Xenopus KCNQ1-CaM in complex with ML277

Coordinates

PDB Format Compare

Method

ELECTRON MICROSCOPY

Oligo State

hetero-4-4-mer

Ligands

4 x I0S: (2R)-N-[4-(4-methoxyphenyl)-1,3-thiazol-2-yl]-1-(4-methylbenzene-1-sulfonyl)piperidine-2-carboxamide(Non-covalent)

I0S.1: 14 residues within 4Å: Chain A: I.193, G.197, F.200, V.259, F.260, S.263, F.264 Chain G: W.173, V.180, L.187, T.190, L.191, P.268, L.272 4 PLIP interactions: 1 interactions with chain A, 3 interactions with chain G Hydrophobic interactions: A:F.200, G:W.173, G:L.191, G:P.268 I0S.5: 14 residues within 4Å: Chain C: I.193, G.197, F.200, V.259, F.260, S.263, F.264 Chain E: W.173, V.180, L.187, T.190, L.191, P.268, L.272 4 PLIP interactions: 1 interactions with chain C, 3 interactions with chain E Hydrophobic interactions: C:F.200, E:W.173, E:L.191, E:P.268 I0S.9: 14 residues within 4Å: Chain A: W.173, V.180, L.187, T.190, L.191, P.268, L.272 Chain E: I.193, G.197, F.200, V.259, F.260, S.263, F.264 4 PLIP interactions: 3 interactions with chain A, 1 interactions with chain E Hydrophobic interactions: A:W.173, A:L.191, A:P.268, E:F.200 I0S.13: 14 residues within 4Å: Chain C: W.173, V.180, L.187, T.190, L.191, P.268, L.272 Chain G: I.193, G.197, F.200, V.259, F.260, S.263, F.264 4 PLIP interactions: 3 interactions with chain C, 1 interactions with chain G Hydrophobic interactions: C:W.173, C:L.191, C:P.268, G:F.200

12 x CA: CALCIUM ION(Non-covalent)

CA.2: 3 residues within 4Å: Chain B: D.25, T.27, I.28 2 PLIP interactions: 2 interactions with chain B Metal complexes: B:D.25, B:T.27 CA.3: 5 residues within 4Å: Chain B: D.57, D.59, N.61, T.63, E.68 5 PLIP interactions: 5 interactions with chain B Metal complexes: B:D.59, B:D.59, B:T.63, B:E.68, B:E.68 CA.4: 6 residues within 4Å: Chain B: A.129, D.130, D.132, Q.136, V.137, N.138 No protein-ligand interaction detected (PLIP) CA.6: 3 residues within 4Å: Chain D: D.25, T.27, I.28 2 PLIP interactions: 2 interactions with chain D Metal complexes: D:D.25, D:T.27 CA.7: 5 residues within 4Å: Chain D: D.57, D.59, N.61, T.63, E.68 5 PLIP interactions: 5 interactions with chain D Metal complexes: D:D.59, D:D.59, D:T.63, D:E.68, D:E.68 CA.8: 6 residues within 4Å: Chain D: A.129, D.130, D.132, Q.136, V.137, N.138 No protein-ligand interaction detected (PLIP) CA.10: 3 residues within 4Å: Chain F: D.25, T.27, I.28 2 PLIP interactions: 2 interactions with chain F Metal complexes: F:D.25, F:T.27 CA.11: 5 residues within 4Å: Chain F: D.57, D.59, N.61, T.63, E.68 5 PLIP interactions: 5 interactions with chain F Metal complexes: F:D.59, F:D.59, F:T.63, F:E.68, F:E.68 CA.12: 6 residues within 4Å: Chain F: A.129, D.130, D.132, Q.136, V.137, N.138 No protein-ligand interaction detected (PLIP) CA.14: 3 residues within 4Å: Chain H: D.25, T.27, I.28 2 PLIP interactions: 2 interactions with chain H Metal complexes: H:D.25, H:T.27 CA.15: 5 residues within 4Å: Chain H: D.57, D.59, N.61, T.63, E.68 5 PLIP interactions: 5 interactions with chain H Metal complexes: H:D.59, H:D.59, H:T.63, H:E.68, H:E.68 CA.16: 6 residues within 4Å: Chain H: A.129, D.130, D.132, Q.136, V.137, N.138 No protein-ligand interaction detected (PLIP)

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Willegems, K. et al., Structural and electrophysiological basis for the modulation of KCNQ1 channel currents by ML277. Nat Commun (2022)

Release Date

2022-07-06

Peptides

Potassium voltage-gated channel subfamily KQT member 1: ACEG
Calmodulin-1: BDFH

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

C
E

E
C

G
G

B
B

D
F

F
D

H
H

Membrane

We predict this structure to be a membrane protein.
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Potassium voltage-gated channel subfamily KQT member 1

Calmodulin-1

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