SMTL ID : 7zk3.1

Structure of 1PBC- and calcium-bound mTMEM16A(ac) chloride channel at 2.85 A resolution

Coordinates

PDB Format

Method

ELECTRON MICROSCOPY

Oligo State

homo-dimer

Ligands

6 x CA: CALCIUM ION(Non-covalent)

CA.1: 5 residues within 4Å: Chain A: E.654, E.702, E.705, E.734, D.738 3 PLIP interactions: 3 interactions with chain A Metal complexes: A:E.702, A:E.705, A:E.734 CA.2: 5 residues within 4Å: Chain A: N.650, N.651, E.654, E.705, E.734 3 PLIP interactions: 3 interactions with chain A Metal complexes: A:E.654, A:E.734, A:E.734 CA.4: 4 residues within 4Å: Chain A: E.425, D.883, I.886, D.888 3 PLIP interactions: 3 interactions with chain A Metal complexes: A:D.883, A:I.886, A:D.888 CA.5: 5 residues within 4Å: Chain B: E.654, E.702, E.705, E.734, D.738 3 PLIP interactions: 3 interactions with chain B Metal complexes: B:E.702, B:E.705, B:E.734 CA.6: 5 residues within 4Å: Chain B: N.650, N.651, E.654, E.705, E.734 3 PLIP interactions: 3 interactions with chain B Metal complexes: B:E.654, B:E.734, B:E.734 CA.8: 4 residues within 4Å: Chain B: E.425, D.883, I.886, D.888 3 PLIP interactions: 3 interactions with chain B Metal complexes: B:D.883, B:I.886, B:D.888

2 x JRF: 1-Hydroxy-3-(trifluoromethyl)pyrido[1,2-a]benzimidazole-4-carbonitrile(Non-covalent)

JRF.3: 14 residues within 4Å: Chain A: V.508, V.511, I.512, R.515, T.539, V.543, N.546, P.595, Y.598, V.599, K.603, E.633, I.636, Q.637 10 PLIP interactions: 10 interactions with chain A Hydrophobic interactions: A:V.508, A:V.511, A:I.512, A:V.543, A:P.595, A:Y.598, A:V.599, A:Q.637 Hydrogen bonds: A:K.603, A:K.603 JRF.7: 14 residues within 4Å: Chain B: V.508, V.511, I.512, R.515, T.539, V.543, N.546, P.595, Y.598, V.599, K.603, E.633, I.636, Q.637 10 PLIP interactions: 10 interactions with chain B Hydrophobic interactions: B:V.508, B:V.511, B:I.512, B:V.543, B:P.595, B:Y.598, B:V.599, B:Q.637 Hydrogen bonds: B:K.603, B:K.603

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Lam, A.K.M. et al., Inhibition mechanism of the chloride channel TMEM16A by the pore blocker 1PBC. Nat Commun (2022)

Release Date

2022-05-25

Peptides

Anoctamin-1: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

Membrane

We predict this structure to be a membrane protein.
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Anoctamin-1

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