SMTL ID : 9dkf.1

Ca2+ bound aplysia Slo1 R202Q

Coordinates

PDB Format Compare

Method

ELECTRON MICROSCOPY

Oligo State

homo-tetramer

Ligands

5 x K: POTASSIUM ION(Non-covalent)

K.1: 5 residues within 4Å: Chain A: F.279 Chain B: F.279 Chain C: F.279 Chain D: F.279 Ligands: K.9 No protein-ligand interaction detected (PLIP) K.2: 10 residues within 4Å: Chain A: T.276, V.277 Chain B: T.276, V.277 Chain C: T.276, V.277 Chain D: T.276, V.277 Ligands: K.10, K.11 5 PLIP interactions: 1 interactions with chain B, 2 interactions with chain C, 1 interactions with chain D, 1 interactions with chain A Metal complexes: B:T.276, C:T.276, C:V.277, D:T.276, A:T.276 K.9: 10 residues within 4Å: Chain A: G.278, F.279 Chain B: G.278, F.279 Chain C: G.278, F.279 Chain D: G.278, F.279 Ligands: K.1, K.10 3 PLIP interactions: 1 interactions with chain D, 1 interactions with chain B, 1 interactions with chain C Metal complexes: D:F.279, B:F.279, C:F.279 K.10: 10 residues within 4Å: Chain A: V.277, G.278 Chain B: V.277, G.278 Chain C: V.277, G.278 Chain D: V.277, G.278 Ligands: K.2, K.9 5 PLIP interactions: 1 interactions with chain B, 1 interactions with chain A, 2 interactions with chain D, 1 interactions with chain C Metal complexes: B:G.278, A:G.278, D:V.277, D:G.278, C:G.278 K.11: 5 residues within 4Å: Chain A: T.276 Chain B: T.276 Chain C: T.276 Chain D: T.276 Ligands: K.2 2 PLIP interactions: 1 interactions with chain C, 1 interactions with chain D Metal complexes: C:T.276, D:T.276

4 x MG: MAGNESIUM ION(Non-covalent)

MG.3: 3 residues within 4Å: Chain A: E.328, E.363, E.388 3 PLIP interactions: 3 interactions with chain A Metal complexes: A:E.328, A:E.363, A:E.388 MG.6: 3 residues within 4Å: Chain B: E.328, E.363, E.388 3 PLIP interactions: 3 interactions with chain B Metal complexes: B:E.328, B:E.363, B:E.388 MG.12: 3 residues within 4Å: Chain C: E.328, E.363, E.388 3 PLIP interactions: 3 interactions with chain C Metal complexes: C:E.328, C:E.363, C:E.388 MG.15: 3 residues within 4Å: Chain D: E.328, E.363, E.388 3 PLIP interactions: 3 interactions with chain D Metal complexes: D:E.328, D:E.363, D:E.388

8 x CA: CALCIUM ION(Non-covalent)

CA.4: 5 residues within 4Å: Chain A: D.356, R.503, G.523, E.525, E.591 5 PLIP interactions: 5 interactions with chain A Metal complexes: A:D.356, A:R.503, A:G.523, A:E.525, A:E.591 CA.5: 5 residues within 4Å: Chain A: Q.899, D.902, D.905, D.907 Chain D: N.438 4 PLIP interactions: 4 interactions with chain A Metal complexes: A:Q.899, A:D.902, A:D.907, A:D.907 CA.7: 5 residues within 4Å: Chain B: D.356, R.503, G.523, E.525, E.591 5 PLIP interactions: 5 interactions with chain B Metal complexes: B:D.356, B:R.503, B:G.523, B:E.525, B:E.591 CA.8: 5 residues within 4Å: Chain A: N.438 Chain B: Q.899, D.902, D.905, D.907 4 PLIP interactions: 4 interactions with chain B Metal complexes: B:Q.899, B:D.902, B:D.907, B:D.907 CA.13: 5 residues within 4Å: Chain C: D.356, R.503, G.523, E.525, E.591 5 PLIP interactions: 5 interactions with chain C Metal complexes: C:D.356, C:R.503, C:G.523, C:E.525, C:E.591 CA.14: 5 residues within 4Å: Chain B: N.438 Chain C: Q.899, D.902, D.905, D.907 4 PLIP interactions: 4 interactions with chain C Metal complexes: C:Q.899, C:D.902, C:D.907, C:D.907 CA.16: 5 residues within 4Å: Chain D: D.356, R.503, G.523, E.525, E.591 5 PLIP interactions: 5 interactions with chain D Metal complexes: D:D.356, D:R.503, D:G.523, D:E.525, D:E.591 CA.17: 5 residues within 4Å: Chain C: N.438 Chain D: Q.899, D.902, D.905, D.907 4 PLIP interactions: 4 interactions with chain D Metal complexes: D:Q.899, D:D.902, D:D.907, D:D.907

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Contreras, G.F. et al., Structural Basis of Voltage-Dependent Gating in BK Channels. Nat Commun (2025)

Release Date

2025-06-18

Peptides

BK channel: 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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BK channel

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