SMTL ID : 8s3e.1

Structure of rabbit Slo1 in complex with gamma1/LRRC26

Coordinates

PDB Format

Method

ELECTRON MICROSCOPY

Oligo State

hetero-4-4-mer

Ligands

16 x CLR: CHOLESTEROL(Non-covalent)

CLR.1: 9 residues within 4Å: Chain A: W.22, L.26, V.184, L.206, F.252, L.255, P.262, L.299 Ligands: 6PL.12 6 PLIP interactions: 6 interactions with chain A Hydrophobic interactions: A:W.22, A:L.26, A:L.206, A:F.252, A:L.255, A:L.299 CLR.2: 11 residues within 4Å: Chain A: F.131, W.246, L.247, Y.274, W.275, V.278 Chain D: F.306, L.309 Ligands: CLR.4, 6PL.14, 6PL.16 10 PLIP interactions: 2 interactions with chain D, 8 interactions with chain A Hydrophobic interactions: D:F.306, D:L.309, A:F.131, A:W.246, A:L.247, A:W.275, A:W.275, A:W.275, A:V.278, A:V.278 CLR.3: 2 residues within 4Å: Chain A: L.37, L.179 2 PLIP interactions: 2 interactions with chain A Hydrophobic interactions: A:L.37, A:L.179 CLR.4: 6 residues within 4Å: Chain A: L.221, L.235, V.236, L.239 Ligands: CLR.2, 6PL.14 4 PLIP interactions: 4 interactions with chain A Hydrophobic interactions: A:L.221, A:L.235, A:L.239 Hydrogen bonds: A:S.232 CLR.21: 9 residues within 4Å: Chain B: W.22, L.26, V.184, L.206, F.252, L.255, P.262, L.299 Ligands: 6PL.32 6 PLIP interactions: 6 interactions with chain B Hydrophobic interactions: B:W.22, B:L.26, B:L.206, B:F.252, B:L.255, B:L.299 CLR.22: 10 residues within 4Å: Chain A: F.306 Chain B: F.131, W.246, L.247, Y.274, W.275, V.278 Ligands: 6PL.20, CLR.24, 6PL.34 9 PLIP interactions: 8 interactions with chain B, 1 interactions with chain A Hydrophobic interactions: B:F.131, B:W.246, B:L.247, B:W.275, B:W.275, B:W.275, B:V.278, B:V.278, A:F.306 CLR.23: 2 residues within 4Å: Chain B: L.37, L.179 2 PLIP interactions: 2 interactions with chain B Hydrophobic interactions: B:L.37, B:L.179 CLR.24: 6 residues within 4Å: Chain B: L.221, L.235, V.236, L.239 Ligands: CLR.22, 6PL.34 4 PLIP interactions: 4 interactions with chain B Hydrophobic interactions: B:L.221, B:L.235, B:L.239 Hydrogen bonds: B:S.232 CLR.38: 9 residues within 4Å: Chain C: W.22, L.26, V.184, L.206, F.252, L.255, P.262, L.299 Ligands: 6PL.49 6 PLIP interactions: 6 interactions with chain C Hydrophobic interactions: C:W.22, C:L.26, C:L.206, C:F.252, C:L.255, C:L.299 CLR.39: 10 residues within 4Å: Chain B: F.306 Chain C: F.131, W.246, L.247, Y.274, W.275, V.278 Ligands: 6PL.37, CLR.41, 6PL.51 9 PLIP interactions: 8 interactions with chain C, 1 interactions with chain B Hydrophobic interactions: C:F.131, C:W.246, C:L.247, C:W.275, C:W.275, C:W.275, C:V.278, C:V.278, B:F.306 CLR.40: 2 residues within 4Å: Chain C: L.37, L.179 2 PLIP interactions: 2 interactions with chain C Hydrophobic interactions: C:L.37, C:L.179 CLR.41: 6 residues within 4Å: Chain C: L.221, L.235, V.236, L.239 Ligands: CLR.39, 6PL.51 4 PLIP interactions: 4 interactions with chain C Hydrophobic interactions: C:L.221, C:L.235, C:L.239 Hydrogen bonds: C:S.232 CLR.54: 9 residues within 4Å: Chain D: W.22, L.26, V.184, L.206, F.252, L.255, P.262, L.299 Ligands: 6PL.65 6 PLIP interactions: 6 interactions with chain D Hydrophobic interactions: D:W.22, D:L.26, D:L.206, D:F.252, D:L.255, D:L.299 CLR.55: 12 residues within 4Å: Chain C: V.305, F.306, L.309 Chain D: F.131, W.246, L.247, Y.274, W.275, V.278 Ligands: 6PL.53, CLR.57, 6PL.67 11 PLIP interactions: 8 interactions with chain D, 3 interactions with chain C Hydrophobic interactions: D:F.131, D:W.246, D:L.247, D:W.275, D:W.275, D:W.275, D:V.278, D:V.278, C:V.305, C:F.306, C:L.309 CLR.56: 2 residues within 4Å: Chain D: L.37, L.179 2 PLIP interactions: 2 interactions with chain D Hydrophobic interactions: D:L.37, D:L.179 CLR.57: 6 residues within 4Å: Chain D: L.221, L.235, V.236, L.239 Ligands: CLR.55, 6PL.67 4 PLIP interactions: 4 interactions with chain D Hydrophobic interactions: D:L.221, D:L.235, D:L.239 Hydrogen bonds: D:S.232

8 x CA: CALCIUM ION(Non-covalent)

CA.5: 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.6: 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.25: 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.26: 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.42: 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.43: 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.58: 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.59: 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

36 x 6PL: (4S,7R)-4-HYDROXY-N,N,N-TRIMETHYL-9-OXO-7-[(PALMITOYLOXY)METHYL]-3,5,8-TRIOXA-4-PHOSPHAHEXACOSAN-1-AMINIUM 4-OXIDE(Non-covalent)(Covalent)

6PL.7: 3 residues within 4Å: Chain A: W.176, L.179 Chain B: K.330 Ligand excluded by PLIP 6PL.8: 8 residues within 4Å: Chain A: G.36, I.39, W.43, F.168, K.174, W.178 Chain E: P.270, L.274 Ligand excluded by PLIP 6PL.9: 8 residues within 4Å: Chain A: I.215, I.241, T.245, T.248, F.252, F.303, Y.318 Ligands: 6PL.10 Ligand excluded by PLIP 6PL.10: 10 residues within 4Å: Chain A: T.245, L.299, F.303, F.306, G.310, A.313, M.314, S.317 Chain B: I.323 Ligands: 6PL.9 Ligand excluded by PLIP 6PL.11: 2 residues within 4Å: Chain A: A.121, G.125 Ligand excluded by PLIP 6PL.12: 7 residues within 4Å: Chain A: W.22, P.262, W.263, N.265, F.266 Ligands: CLR.1, 6PL.13 Ligand excluded by PLIP 6PL.13: 4 residues within 4Å: Chain A: W.263, L.302 Ligands: 6PL.12, 6PL.20 Ligand excluded by PLIP 6PL.14: 7 residues within 4Å: Chain A: F.131, I.132, L.214, S.240, I.243 Ligands: CLR.2, CLR.4 Ligand excluded by PLIP 6PL.16: 11 residues within 4Å: Chain A: F.242, T.273, W.275, M.282, M.285, F.315 Chain D: T.298, L.302, L.309 Ligands: CLR.2, 6PL.66 Ligand excluded by PLIP 6PL.20: 11 residues within 4Å: Chain A: T.298, L.302, L.309 Chain B: F.242, T.273, W.275, M.282, M.285, F.315 Ligands: 6PL.13, CLR.22 Ligand excluded by PLIP 6PL.27: 3 residues within 4Å: Chain B: W.176, L.179 Chain C: K.330 Ligand excluded by PLIP 6PL.28: 8 residues within 4Å: Chain B: G.36, I.39, W.43, F.168, K.174, W.178 Chain F: P.270, L.274 Ligand excluded by PLIP 6PL.29: 8 residues within 4Å: Chain B: I.215, I.241, T.245, T.248, F.252, F.303, Y.318 Ligands: 6PL.30 Ligand excluded by PLIP 6PL.30: 9 residues within 4Å: Chain B: T.245, L.299, F.303, F.306, G.310, A.313, M.314, S.317 Ligands: 6PL.29 Ligand excluded by PLIP 6PL.31: 2 residues within 4Å: Chain B: A.121, G.125 Ligand excluded by PLIP 6PL.32: 7 residues within 4Å: Chain B: W.22, P.262, W.263, N.265, F.266 Ligands: CLR.21, 6PL.33 Ligand excluded by PLIP 6PL.33: 4 residues within 4Å: Chain B: W.263, L.302 Ligands: 6PL.32, 6PL.37 Ligand excluded by PLIP 6PL.34: 7 residues within 4Å: Chain B: F.131, I.132, L.214, S.240, I.243 Ligands: CLR.22, CLR.24 Ligand excluded by PLIP 6PL.37: 10 residues within 4Å: Chain B: T.298, L.302, L.309 Chain C: F.242, W.275, M.282, M.285, F.315 Ligands: 6PL.33, CLR.39 Ligand excluded by PLIP 6PL.44: 3 residues within 4Å: Chain C: W.176, L.179 Chain D: K.330 Ligand excluded by PLIP 6PL.45: 8 residues within 4Å: Chain C: G.36, I.39, W.43, F.168, K.174, W.178 Chain G: P.270, L.274 Ligand excluded by PLIP 6PL.46: 8 residues within 4Å: Chain C: I.215, I.241, T.245, T.248, F.252, F.303, Y.318 Ligands: 6PL.47 Ligand excluded by PLIP 6PL.47: 9 residues within 4Å: Chain C: T.245, L.299, F.303, F.306, G.310, A.313, M.314, S.317 Ligands: 6PL.46 Ligand excluded by PLIP 6PL.48: 2 residues within 4Å: Chain C: A.121, G.125 Ligand excluded by PLIP 6PL.49: 7 residues within 4Å: Chain C: W.22, P.262, W.263, N.265, F.266 Ligands: CLR.38, 6PL.50 Ligand excluded by PLIP 6PL.50: 4 residues within 4Å: Chain C: W.263, L.302 Ligands: 6PL.49, 6PL.53 Ligand excluded by PLIP 6PL.51: 7 residues within 4Å: Chain C: F.131, I.132, L.214, S.240, I.243 Ligands: CLR.39, CLR.41 Ligand excluded by PLIP 6PL.53: 10 residues within 4Å: Chain C: T.298, L.302, L.309 Chain D: F.242, W.275, M.282, M.285, F.315 Ligands: 6PL.50, CLR.55 Ligand excluded by PLIP 6PL.60: 3 residues within 4Å: Chain A: K.330 Chain D: W.176, L.179 Ligand excluded by PLIP 6PL.61: 8 residues within 4Å: Chain D: G.36, I.39, W.43, F.168, K.174, W.178 Chain H: P.270, L.274 Ligand excluded by PLIP 6PL.62: 8 residues within 4Å: Chain D: I.215, I.241, T.245, T.248, F.252, F.303, Y.318 Ligands: 6PL.63 Ligand excluded by PLIP 6PL.63: 9 residues within 4Å: Chain D: T.245, L.299, F.303, F.306, G.310, A.313, M.314, S.317 Ligands: 6PL.62 Ligand excluded by PLIP 6PL.64: 2 residues within 4Å: Chain D: A.121, G.125 Ligand excluded by PLIP 6PL.65: 7 residues within 4Å: Chain D: W.22, P.262, W.263, N.265, F.266 Ligands: CLR.54, 6PL.66 Ligand excluded by PLIP 6PL.66: 4 residues within 4Å: Chain D: W.263, L.302 Ligands: 6PL.16, 6PL.65 Ligand excluded by PLIP 6PL.67: 7 residues within 4Å: Chain D: F.131, I.132, L.214, S.240, I.243 Ligands: CLR.55, CLR.57 Ligand excluded by PLIP

4 x MG: MAGNESIUM ION(Non-covalent)

MG.15: 2 residues within 4Å: Chain A: E.374, E.399 2 PLIP interactions: 2 interactions with chain A Metal complexes: A:E.374, A:E.399 MG.19: 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.36: 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.52: 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

4 x K: POTASSIUM ION(Non-covalent)

K.17: 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.18, K.68 2 PLIP interactions: 1 interactions with chain D, 1 interactions with chain A Metal complexes: D:V.288, A:V.288 K.18: 5 residues within 4Å: Chain A: Y.290 Chain B: Y.290 Chain C: Y.290 Chain D: Y.290 Ligands: K.17 No protein-ligand interaction detected (PLIP) K.35: 5 residues within 4Å: Chain A: T.287 Chain B: T.287 Chain C: T.287 Chain D: T.287 Ligands: K.68 4 PLIP interactions: 1 interactions with chain A, 1 interactions with chain C, 1 interactions with chain B, 1 interactions with chain D Metal complexes: A:T.287, C:T.287, B:T.287, D:T.287 K.68: 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.17, K.35 5 PLIP interactions: 1 interactions with chain D, 1 interactions with chain C, 2 interactions with chain A, 1 interactions with chain B Metal complexes: D:V.288, C:V.288, A:T.287, A:V.288, B:T.287

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Redhardt, M. et al., Cryo-EM structure of the Slo1 potassium channel with the auxiliary gamma 1 subunit suggests a mechanism for depolarization-independent activation. Febs Lett. (2024)

Release Date

2024-04-10

Peptides

Calcium-activated potassium channel subunit alpha-1: ABCD
Leucine-rich repeat-containing protein 26: 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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Calcium-activated potassium channel subunit alpha-1

Leucine-rich repeat-containing protein 26