SMTL ID : 6izf.1

Structural basis for activity of TRIC counter-ion channels in calcium release

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.00 Å

Oligo State

homo-trimer

Ligands

3 x CA: CALCIUM ION(Non-covalent)

CA.1: 5 residues within 4Å: Chain A: G.74 Chain B: G.74 Chain C: G.74 Ligands: CA.8, CA.15 5 PLIP interactions: 1 interactions with chain B, 1 interactions with chain C, 1 interactions with chain A, 2 Ligand-Water interactions Metal complexes: B:G.74, C:G.74, A:G.74, H2O.5, H2O.9 CA.8: 5 residues within 4Å: Chain A: G.74 Chain B: G.74 Chain C: G.74 Ligands: CA.1, CA.15 5 PLIP interactions: 1 interactions with chain B, 1 interactions with chain C, 1 interactions with chain A, 2 Ligand-Water interactions Metal complexes: B:G.74, C:G.74, A:G.74, H2O.2, H2O.9 CA.15: 5 residues within 4Å: Chain A: G.74 Chain B: G.74 Chain C: G.74 Ligands: CA.1, CA.8 5 PLIP interactions: 1 interactions with chain B, 1 interactions with chain C, 1 interactions with chain A, 2 Ligand-Water interactions Metal complexes: B:G.74, C:G.74, A:G.74, H2O.2, H2O.5

15 x CL: CHLORIDE ION(Non-functional Binders)

CL.2: 0 residues within 4Å: (No contacts) Ligand excluded by PLIP CL.3: 4 residues within 4Å: Chain A: A.132, G.133, H.136, K.155 Ligand excluded by PLIP CL.4: 4 residues within 4Å: Chain A: P.41, Q.167, R.170, R.174 Ligand excluded by PLIP CL.5: 3 residues within 4Å: Chain A: S.50, P.51, F.52 Ligand excluded by PLIP CL.6: 4 residues within 4Å: Chain A: Y.66, K.129, A.132, K.155 Ligand excluded by PLIP CL.9: 0 residues within 4Å: (No contacts) Ligand excluded by PLIP CL.10: 4 residues within 4Å: Chain B: A.132, G.133, H.136, K.155 Ligand excluded by PLIP CL.11: 4 residues within 4Å: Chain B: P.41, Q.167, R.170, R.174 Ligand excluded by PLIP CL.12: 3 residues within 4Å: Chain B: S.50, P.51, F.52 Ligand excluded by PLIP CL.13: 4 residues within 4Å: Chain B: Y.66, K.129, A.132, K.155 Ligand excluded by PLIP CL.16: 0 residues within 4Å: (No contacts) Ligand excluded by PLIP CL.17: 4 residues within 4Å: Chain C: A.132, G.133, H.136, K.155 Ligand excluded by PLIP CL.18: 4 residues within 4Å: Chain C: P.41, Q.167, R.170, R.174 Ligand excluded by PLIP CL.19: 3 residues within 4Å: Chain C: S.50, P.51, F.52 Ligand excluded by PLIP CL.20: 4 residues within 4Å: Chain C: Y.66, K.129, A.132, K.155 Ligand excluded by PLIP

3 x BQ9: (2R)-1-(dodecanoyloxy)-3-hydroxypropan-2-yl (5E,8E,11E)-tetradeca-5,8,11-trienoate(Non-covalent)

BQ9.7: 12 residues within 4Å: Chain A: L.72, M.149, A.150, W.153, L.161 Chain B: F.52, W.55, L.56, L.71, P.77, I.78, F.81 7 PLIP interactions: 4 interactions with chain B, 3 interactions with chain A Hydrophobic interactions: B:L.56, B:L.71, B:P.77, B:F.81, A:L.72, A:A.150, A:W.153 BQ9.14: 12 residues within 4Å: Chain B: L.72, M.149, A.150, W.153, L.161 Chain C: F.52, W.55, L.56, L.71, P.77, I.78, F.81 7 PLIP interactions: 4 interactions with chain C, 3 interactions with chain B Hydrophobic interactions: C:L.56, C:L.71, C:P.77, C:F.81, B:L.72, B:A.150, B:W.153 BQ9.21: 12 residues within 4Å: Chain A: F.52, W.55, L.56, L.71, P.77, I.78, F.81 Chain C: L.72, M.149, A.150, W.153, L.161 7 PLIP interactions: 4 interactions with chain A, 3 interactions with chain C Hydrophobic interactions: A:L.56, A:L.71, A:P.77, A:F.81, C:L.72, C:A.150, C:W.153

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Wang, X.H. et al., Structural basis for activity of TRIC counter-ion channels in calcium release. Proc.Natl.Acad.Sci.USA (2019)

Release Date

2019-05-01

Peptides

Trimeric intracellular cation channel type A: ABC

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
A

C
A

Membrane

We predict this structure to be a membrane protein.
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Trimeric intracellular cation channel type A

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