SMTL ID : 9d19.1

Ca2+ bound open-inactivated hSlo1 + beta2N-beta4 channel in detergent-conformation 3 of inactivating domain

Coordinates

PDB Format Compare

Method

ELECTRON MICROSCOPY

Oligo State

hetero-4-4-mer

Ligands

4 x MG: MAGNESIUM ION(Non-covalent)

MG.1: 3 residues within 4Å: Chain A: E.374, E.399 Chain D: N.172 2 PLIP interactions: 2 interactions with chain A Metal complexes: A:E.374, A:E.399 MG.14: 2 residues within 4Å: Chain B: E.374, E.399 2 PLIP interactions: 2 interactions with chain B Metal complexes: B:E.374, B:E.399 MG.25: 2 residues within 4Å: Chain C: E.374, E.399 2 PLIP interactions: 2 interactions with chain C Metal complexes: C:E.374, C:E.399 MG.34: 2 residues within 4Å: Chain D: E.374, E.399 2 PLIP interactions: 2 interactions with chain D Metal complexes: D:E.374, D:E.399

8 x CA: CALCIUM ION(Non-covalent)

CA.2: 5 residues within 4Å: Chain A: D.367, R.514, S.533, E.535, S.600 5 PLIP interactions: 5 interactions with chain A Metal complexes: A:D.367, A:R.514, A:S.533, A:E.535, A:S.600 CA.3: 5 residues within 4Å: Chain A: Q.889, D.892, D.895, D.897 Chain D: N.449 5 PLIP interactions: 5 interactions with chain A Metal complexes: A:Q.889, A:D.892, A:D.895, A:D.897, A:D.897 CA.15: 5 residues within 4Å: Chain B: D.367, R.514, S.533, E.535, S.600 5 PLIP interactions: 5 interactions with chain B Metal complexes: B:D.367, B:R.514, B:S.533, B:E.535, B:S.600 CA.16: 5 residues within 4Å: Chain A: N.449 Chain B: Q.889, D.892, D.895, D.897 5 PLIP interactions: 5 interactions with chain B Metal complexes: B:Q.889, B:D.892, B:D.895, B:D.897, B:D.897 CA.26: 5 residues within 4Å: Chain C: D.367, R.514, S.533, E.535, S.600 5 PLIP interactions: 5 interactions with chain C Metal complexes: C:D.367, C:R.514, C:S.533, C:E.535, C:S.600 CA.27: 5 residues within 4Å: Chain B: N.449 Chain C: Q.889, D.892, D.895, D.897 5 PLIP interactions: 5 interactions with chain C Metal complexes: C:Q.889, C:D.892, C:D.895, C:D.897, C:D.897 CA.35: 5 residues within 4Å: Chain D: D.367, R.514, S.533, E.535, S.600 5 PLIP interactions: 5 interactions with chain D Metal complexes: D:D.367, D:R.514, D:S.533, D:E.535, D:S.600 CA.36: 5 residues within 4Å: Chain C: N.449 Chain D: Q.889, D.892, D.895, D.897 5 PLIP interactions: 5 interactions with chain D Metal complexes: D:Q.889, D:D.892, D:D.895, D:D.897, D:D.897

20 x POV: (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate(Non-covalent)

POV.4: 3 residues within 4Å: Chain A: I.241, F.252, F.303 Ligand excluded by PLIP POV.10: 11 residues within 4Å: Chain A: T.273, W.275, E.276, V.278, Y.279 Chain D: T.298, R.301, L.302 Chain H: F.62, I.63, C.67 Ligand excluded by PLIP POV.11: 11 residues within 4Å: Chain A: A.121, G.125, V.128, I.132, N.136, D.147, F.148, T.149 Chain H: G.65, L.69, L.73 Ligand excluded by PLIP POV.12: 10 residues within 4Å: Chain A: I.226, L.227, K.228, T.229, S.232, L.235, V.236, S.240, I.243 Ligands: POV.47 Ligand excluded by PLIP POV.13: 10 residues within 4Å: Chain A: T.298, R.301, L.302 Chain B: T.273, W.275, E.276, V.278, Y.279 Chain E: F.62, C.67 Ligand excluded by PLIP POV.17: 3 residues within 4Å: Chain B: I.241, F.252, F.303 Ligand excluded by PLIP POV.21: 11 residues within 4Å: Chain B: A.121, G.125, V.128, I.132, N.136, D.147, F.148, T.149 Chain E: G.65, L.69, L.73 Ligand excluded by PLIP POV.22: 10 residues within 4Å: Chain B: I.226, L.227, K.228, T.229, S.232, L.235, V.236, S.240, I.243 Ligands: POV.44 Ligand excluded by PLIP POV.23: 9 residues within 4Å: Chain B: T.298, R.301, L.302 Chain C: T.273, W.275, E.276, V.278, Y.279 Chain F: C.67 Ligand excluded by PLIP POV.28: 3 residues within 4Å: Chain C: I.241, F.252, F.303 Ligand excluded by PLIP POV.32: 11 residues within 4Å: Chain C: A.121, G.125, V.128, I.132, N.136, D.147, F.148, T.149 Chain F: G.65, L.69, L.73 Ligand excluded by PLIP POV.33: 10 residues within 4Å: Chain C: I.226, L.227, K.228, T.229, S.232, L.235, V.236, S.240, I.243 Ligands: POV.45 Ligand excluded by PLIP POV.37: 4 residues within 4Å: Chain A: K.331 Chain D: I.241, F.252, F.303 Ligand excluded by PLIP POV.41: 9 residues within 4Å: Chain C: T.298, R.301, L.302 Chain D: T.273, W.275, E.276, V.278, Y.279 Chain G: C.67 Ligand excluded by PLIP POV.42: 10 residues within 4Å: Chain D: A.121, G.125, V.128, I.132, N.136, D.147, F.148, T.149 Chain G: G.65, L.73 Ligand excluded by PLIP POV.43: 10 residues within 4Å: Chain D: I.226, L.227, K.228, T.229, S.232, L.235, V.236, S.240, I.243 Ligands: POV.46 Ligand excluded by PLIP POV.44: 6 residues within 4Å: Chain B: I.326, R.329 Chain E: L.51, F.52, I.55 Ligands: POV.22 Ligand excluded by PLIP POV.45: 5 residues within 4Å: Chain C: I.326, R.329 Chain F: L.51, I.55 Ligands: POV.33 Ligand excluded by PLIP POV.46: 5 residues within 4Å: Chain D: I.326, R.329 Chain G: L.51, I.55 Ligands: POV.43 Ligand excluded by PLIP POV.47: 6 residues within 4Å: Chain A: I.326, R.329 Chain H: L.51, F.52, I.55 Ligands: POV.12 Ligand excluded by PLIP

11 x CLR: CHOLESTEROL(Non-covalent)

CLR.5: 5 residues within 4Å: Chain A: I.39, I.40, W.43, K.174, W.178 6 PLIP interactions: 6 interactions with chain A Hydrophobic interactions: A:I.40, A:W.43, A:W.43, A:W.43, A:W.178, A:W.178 CLR.6: 5 residues within 4Å: Chain A: W.23, A.24, S.28, V.31, T.32 2 PLIP interactions: 2 interactions with chain A Hydrophobic interactions: A:W.23, A:V.31 CLR.18: 3 residues within 4Å: Chain B: S.96, V.97, W.100 4 PLIP interactions: 4 interactions with chain B Hydrophobic interactions: B:W.100, B:W.100, B:W.100, B:W.100 CLR.19: 7 residues within 4Å: Chain B: I.39, W.43, R.44, F.168, K.174, W.178 Chain F: L.39 5 PLIP interactions: 1 interactions with chain F, 4 interactions with chain B Hydrophobic interactions: F:L.39, B:W.43, B:W.43, B:F.168, B:W.178 CLR.20: 9 residues within 4Å: Chain B: M.21, W.23, A.24, S.28, V.31, T.32, V.195, Y.198, L.199 7 PLIP interactions: 7 interactions with chain B Hydrophobic interactions: B:W.23, B:W.23, B:V.31, B:V.195, B:Y.198, B:L.199, B:L.199 CLR.29: 3 residues within 4Å: Chain C: S.96, V.97, W.100 7 PLIP interactions: 7 interactions with chain C Hydrophobic interactions: C:V.97, C:W.100, C:W.100, C:W.100, C:W.100, C:W.100, C:W.100 CLR.30: 6 residues within 4Å: Chain C: I.39, W.43, R.44, F.168, K.174, W.178 4 PLIP interactions: 4 interactions with chain C Hydrophobic interactions: C:W.43, C:W.43, C:F.168, C:W.178 CLR.31: 9 residues within 4Å: Chain C: M.21, W.23, A.24, S.28, V.31, T.32, V.195, Y.198, L.199 7 PLIP interactions: 7 interactions with chain C Hydrophobic interactions: C:W.23, C:W.23, C:V.31, C:V.195, C:Y.198, C:L.199, C:L.199 CLR.38: 4 residues within 4Å: Chain D: S.96, V.97, W.100, I.169 7 PLIP interactions: 7 interactions with chain D Hydrophobic interactions: D:V.97, D:W.100, D:W.100, D:W.100, D:W.100, D:W.100, D:I.169 CLR.39: 8 residues within 4Å: Chain D: I.39, I.40, W.43, R.44, F.168, K.174, W.178 Chain H: L.39 7 PLIP interactions: 6 interactions with chain D, 1 interactions with chain H Hydrophobic interactions: D:I.40, D:W.43, D:F.168, D:K.174, D:W.178, D:W.178, H:L.39 CLR.40: 9 residues within 4Å: Chain D: M.21, W.23, A.24, S.28, V.31, T.32, V.195, Y.198, L.199 7 PLIP interactions: 7 interactions with chain D Hydrophobic interactions: D:W.23, D:W.23, D:V.31, D:V.195, D:Y.198, D:L.199, D:L.199

4 x K: POTASSIUM ION(Non-covalent)

K.7: 9 residues within 4Å: Chain A: G.289, Y.290 Chain B: G.289, Y.290 Chain C: G.289, Y.290 Chain D: G.289, Y.290 Ligands: K.8 3 PLIP interactions: 1 interactions with chain C, 1 interactions with chain B, 1 interactions with chain A Metal complexes: C:G.289, B:G.289, A:G.289 K.8: 10 residues within 4Å: Chain A: V.288, G.289 Chain B: V.288, G.289 Chain C: V.288, G.289 Chain D: V.288, G.289 Ligands: K.7, K.24 5 PLIP interactions: 1 interactions with chain A, 1 interactions with chain D, 1 interactions with chain B, 2 interactions with chain C Metal complexes: A:V.288, D:V.288, B:V.288, C:V.288, C:G.289 K.9: 5 residues within 4Å: Chain A: T.287 Chain B: T.287 Chain C: T.287 Chain D: T.287 Ligands: K.24 4 PLIP interactions: 1 interactions with chain D, 1 interactions with chain C, 1 interactions with chain A, 1 interactions with chain B Metal complexes: D:T.287, C:T.287, A:T.287, B:T.287 K.24: 10 residues within 4Å: Chain A: T.287, V.288 Chain B: T.287, V.288 Chain C: T.287, V.288 Chain D: T.287, V.288 Ligands: K.8, K.9 5 PLIP interactions: 2 interactions with chain C, 1 interactions with chain D, 2 interactions with chain B Metal complexes: C:T.287, C:V.288, D:V.288, B:T.287, B:V.288

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Agarwal, S. et al., Ball-and-chain inactivation of a human large conductance calcium-activated potassium channel. Nat Commun (2025)

Release Date

2025-03-05

Peptides

Isoform 5 of Calcium-activated potassium channel subunit alpha-1: ABCD
Large-conductance Ca2+-activated K+ channel beta2 subunit,Calcium-activated potassium channel subunit beta-4: EFGH

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

C
C

D
D

E
E

F
F

G
G

H
H

Membrane

We predict this structure to be a membrane protein.
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Isoform 5 of Calcium-activated potassium channel subunit alpha-1

Large-conductance Ca2+-activated K+ channel beta2 subunit,Calcium-activated potassium channel subunit beta-4

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