SMTL ID : 7pxe.1

Ca2+ bound Drosophila Slo channel

Coordinates

PDB Format

Method

ELECTRON MICROSCOPY

Oligo State

homo-tetramer

Ligands

8 x CA: CALCIUM ION(Non-covalent)

CA.1: 5 residues within 4Å: Chain A: Q.977, D.980, D.983, D.985 Chain C: N.463 5 PLIP interactions: 4 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:Q.977, A:D.980, A:D.983, A:D.985, H2O.3 CA.2: 5 residues within 4Å: Chain A: D.381, R.528, G.548, E.550, Q.616 5 PLIP interactions: 5 interactions with chain A Metal complexes: A:R.528, A:G.548, A:E.550, A:E.550, A:Q.616 CA.13: 5 residues within 4Å: Chain B: Q.977, D.980, D.983, D.985 Chain D: N.463 5 PLIP interactions: 4 interactions with chain B, 1 Ligand-Water interactions Metal complexes: B:Q.977, B:D.980, B:D.983, B:D.985, H2O.2 CA.14: 5 residues within 4Å: Chain B: D.381, R.528, G.548, E.550, Q.616 5 PLIP interactions: 5 interactions with chain B Metal complexes: B:R.528, B:G.548, B:E.550, B:E.550, B:Q.616 CA.21: 5 residues within 4Å: Chain B: N.463 Chain C: Q.977, D.980, D.983, D.985 5 PLIP interactions: 4 interactions with chain C, 1 Ligand-Water interactions Metal complexes: C:Q.977, C:D.980, C:D.983, C:D.985, H2O.3 CA.22: 5 residues within 4Å: Chain C: D.381, R.528, G.548, E.550, Q.616 5 PLIP interactions: 5 interactions with chain C Metal complexes: C:R.528, C:G.548, C:E.550, C:E.550, C:Q.616 CA.29: 5 residues within 4Å: Chain A: N.463 Chain D: Q.977, D.980, D.983, D.985 5 PLIP interactions: 4 interactions with chain D, 1 Ligand-Water interactions Metal complexes: D:Q.977, D:D.980, D:D.983, D:D.985, H2O.5 CA.30: 5 residues within 4Å: Chain D: D.381, R.528, G.548, E.550, Q.616 5 PLIP interactions: 5 interactions with chain D Metal complexes: D:R.528, D:G.548, D:E.550, D:E.550, D:Q.616

4 x MG: MAGNESIUM ION(Non-covalent)

MG.3: 6 residues within 4Å: Chain A: N.523, A.526, R.528, T.547, M.549, E.550 5 PLIP interactions: 5 interactions with chain A Metal complexes: A:N.523, A:A.526, A:T.547, A:M.549, A:E.550 MG.15: 6 residues within 4Å: Chain B: N.523, A.526, R.528, T.547, M.549, E.550 5 PLIP interactions: 5 interactions with chain B Metal complexes: B:N.523, B:A.526, B:T.547, B:M.549, B:E.550 MG.23: 6 residues within 4Å: Chain C: N.523, A.526, R.528, T.547, M.549, E.550 5 PLIP interactions: 5 interactions with chain C Metal complexes: C:N.523, C:A.526, C:T.547, C:M.549, C:E.550 MG.31: 6 residues within 4Å: Chain D: N.523, A.526, R.528, T.547, M.549, E.550 5 PLIP interactions: 5 interactions with chain D Metal complexes: D:N.523, D:A.526, D:T.547, D:M.549, D:E.550

16 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)

6PL.4: 8 residues within 4Å: Chain A: R.285, S.287, W.289, T.290 Chain C: V.312, T.316, F.320 Ligands: 6PL.7 Ligand excluded by PLIP 6PL.5: 9 residues within 4Å: Chain A: F.134, V.241, L.242, K.243, T.244, S.247, L.250, A.251 Ligands: 6PL.7 Ligand excluded by PLIP 6PL.6: 7 residues within 4Å: Chain A: M.230, R.249, I.267, V.324, S.331, C.332 Chain D: I.337 Ligand excluded by PLIP 6PL.7: 6 residues within 4Å: Chain A: L.250, I.258, L.339, I.340 Ligands: 6PL.4, 6PL.5 Ligand excluded by PLIP 6PL.16: 8 residues within 4Å: Chain B: R.285, S.287, W.289, T.290 Chain D: V.312, T.316, F.320 Ligands: 6PL.19 Ligand excluded by PLIP 6PL.17: 9 residues within 4Å: Chain B: F.134, V.241, L.242, K.243, T.244, S.247, L.250, A.251 Ligands: 6PL.19 Ligand excluded by PLIP 6PL.18: 7 residues within 4Å: Chain B: M.230, R.249, I.267, V.324, S.331, C.332 Chain C: I.337 Ligand excluded by PLIP 6PL.19: 6 residues within 4Å: Chain B: L.250, I.258, L.339, I.340 Ligands: 6PL.16, 6PL.17 Ligand excluded by PLIP 6PL.24: 8 residues within 4Å: Chain B: V.312, T.316, F.320 Chain C: R.285, S.287, W.289, T.290 Ligands: 6PL.27 Ligand excluded by PLIP 6PL.25: 9 residues within 4Å: Chain C: F.134, V.241, L.242, K.243, T.244, S.247, L.250, A.251 Ligands: 6PL.27 Ligand excluded by PLIP 6PL.26: 7 residues within 4Å: Chain A: I.337 Chain C: M.230, R.249, I.267, V.324, S.331, C.332 Ligand excluded by PLIP 6PL.27: 6 residues within 4Å: Chain C: L.250, I.258, L.339, I.340 Ligands: 6PL.24, 6PL.25 Ligand excluded by PLIP 6PL.32: 8 residues within 4Å: Chain A: V.312, T.316, F.320 Chain D: R.285, S.287, W.289, T.290 Ligands: 6PL.35 Ligand excluded by PLIP 6PL.33: 9 residues within 4Å: Chain D: F.134, V.241, L.242, K.243, T.244, S.247, L.250, A.251 Ligands: 6PL.35 Ligand excluded by PLIP 6PL.34: 7 residues within 4Å: Chain B: I.337 Chain D: M.230, R.249, I.267, V.324, S.331, C.332 Ligand excluded by PLIP 6PL.35: 6 residues within 4Å: Chain D: L.250, I.258, L.339, I.340 Ligands: 6PL.32, 6PL.33 Ligand excluded by PLIP

4 x CLR: CHOLESTEROL(Non-covalent)

CLR.8: 5 residues within 4Å: Chain A: L.53, I.57, F.203, S.274, F.280 5 PLIP interactions: 5 interactions with chain A Hydrophobic interactions: A:L.53, A:I.57, A:F.203 Hydrogen bonds: A:S.274, A:S.274 CLR.20: 5 residues within 4Å: Chain B: L.53, I.57, F.203, S.274, F.280 5 PLIP interactions: 5 interactions with chain B Hydrophobic interactions: B:L.53, B:I.57, B:F.203 Hydrogen bonds: B:S.274, B:S.274 CLR.28: 5 residues within 4Å: Chain C: L.53, I.57, F.203, S.274, F.280 5 PLIP interactions: 5 interactions with chain C Hydrophobic interactions: C:L.53, C:I.57, C:F.203 Hydrogen bonds: C:S.274, C:S.274 CLR.36: 5 residues within 4Å: Chain D: L.53, I.57, F.203, S.274, F.280 5 PLIP interactions: 5 interactions with chain D Hydrophobic interactions: D:L.53, D:I.57, D:F.203 Hydrogen bonds: D:S.274, D:S.274

4 x K: POTASSIUM ION(Non-covalent)

K.9: 9 residues within 4Å: Chain A: G.303, Y.304 Chain B: G.303, Y.304 Chain C: G.303, Y.304 Chain D: G.303, Y.304 Ligands: K.10 4 PLIP interactions: 2 interactions with chain A, 1 interactions with chain C, 1 interactions with chain D Metal complexes: A:G.303, A:Y.304, C:Y.304, D:G.303 K.10: 10 residues within 4Å: Chain A: V.302, G.303 Chain B: V.302, G.303 Chain C: V.302, G.303 Chain D: V.302, G.303 Ligands: K.9, K.11 5 PLIP interactions: 1 interactions with chain C, 1 interactions with chain A, 2 interactions with chain D, 1 interactions with chain B Metal complexes: C:V.302, A:G.303, D:V.302, D:G.303, B:V.302 K.11: 10 residues within 4Å: Chain A: T.301, V.302 Chain B: T.301, V.302 Chain C: T.301, V.302 Chain D: T.301, V.302 Ligands: K.10, K.12 5 PLIP interactions: 1 interactions with chain A, 2 interactions with chain C, 1 interactions with chain D, 1 interactions with chain B Metal complexes: A:V.302, C:T.301, C:V.302, D:T.301, B:T.301 K.12: 5 residues within 4Å: Chain A: T.301 Chain B: T.301 Chain C: T.301 Chain D: T.301 Ligands: K.11 4 PLIP interactions: 1 interactions with chain A, 1 interactions with chain D, 1 interactions with chain B, 1 interactions with chain C Metal complexes: A:T.301, D:T.301, B:T.301, C:T.301

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Raisch, T. et al., Small molecule modulation of the Drosophila Slo channel elucidated by cryo-EM. Nat Commun (2021)

Release Date

2021-12-15

Peptides

Isoform J of Calcium-activated potassium channel slowpoke: 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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Isoform J of Calcium-activated potassium channel slowpoke

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