SMTL ID : 8enc.1

Helical reconstruction of the human cardiac actin-tropomyosin-myosin loop 4 7G mutant complex

Coordinates

PDB Format

Method

ELECTRON MICROSCOPY

Oligo State

hetero-1-5-2-mer

Ligands

5 x ADP: ADENOSINE-5'-DIPHOSPHATE(Non-covalent)

ADP.1: 15 residues within 4Å: Chain B: G.15, S.16, L.18, K.20, G.158, D.159, R.212, K.215, E.216, G.304, T.305, M.307, Y.308, K.338 Ligands: MG.2 12 PLIP interactions: 12 interactions with chain B Hydrogen bonds: B:S.16, B:L.18, B:D.159, B:D.159, B:K.215, B:E.216, B:G.304, B:M.307, B:K.338 Salt bridges: B:K.20, B:K.20 pi-Stacking: B:Y.308 ADP.3: 15 residues within 4Å: Chain C: G.15, S.16, L.18, K.20, G.158, D.159, R.212, K.215, E.216, G.304, T.305, M.307, Y.308, K.338 Ligands: MG.4 9 PLIP interactions: 9 interactions with chain C Hydrogen bonds: C:S.16, C:L.18, C:D.159, C:D.159, C:K.215, C:G.304 Salt bridges: C:K.20, C:K.20, C:K.338 ADP.5: 16 residues within 4Å: Chain D: D.13, G.15, S.16, L.18, K.20, G.158, D.159, R.212, K.215, E.216, G.304, T.305, M.307, Y.308, K.338 Ligands: MG.6 11 PLIP interactions: 11 interactions with chain D Hydrogen bonds: D:D.13, D:S.16, D:L.18, D:D.159, D:D.159, D:K.215, D:E.216, D:G.304, D:K.338 Salt bridges: D:K.20, D:K.20 ADP.7: 15 residues within 4Å: Chain E: G.15, S.16, L.18, K.20, G.158, D.159, R.212, K.215, E.216, G.304, T.305, M.307, Y.308, K.338 Ligands: MG.8 12 PLIP interactions: 12 interactions with chain E Hydrogen bonds: E:S.16, E:L.18, E:L.18, E:D.159, E:D.159, E:K.215, E:E.216, E:G.304, E:K.338 Salt bridges: E:K.20, E:K.20 pi-Stacking: E:Y.308 ADP.9: 15 residues within 4Å: Chain F: G.15, S.16, L.18, K.20, G.158, D.159, R.212, K.215, E.216, G.304, T.305, M.307, Y.308, K.338 Ligands: MG.10 10 PLIP interactions: 10 interactions with chain F Hydrogen bonds: F:S.16, F:L.18, F:D.159, F:D.159, F:K.215, F:G.304, F:K.338 Salt bridges: F:K.20, F:K.20 pi-Stacking: F:Y.308

5 x MG: MAGNESIUM ION(Non-covalent)

MG.2: 2 residues within 4Å: Chain B: Q.139 Ligands: ADP.1 No protein-ligand interaction detected (PLIP) MG.4: 3 residues within 4Å: Chain C: Q.139, D.156 Ligands: ADP.3 No protein-ligand interaction detected (PLIP) MG.6: 2 residues within 4Å: Chain D: Q.139 Ligands: ADP.5 No protein-ligand interaction detected (PLIP) MG.8: 2 residues within 4Å: Chain E: Q.139 Ligands: ADP.7 No protein-ligand interaction detected (PLIP) MG.10: 3 residues within 4Å: Chain F: Q.139, D.156 Ligands: ADP.9 No protein-ligand interaction detected (PLIP)

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Doran, M.H. et al., Myosin loop-4 is critical for optimal tropomyosin repositioning on actin during muscle activation and relaxation. J.Gen.Physiol. (2023)

Release Date

2022-11-23

Peptides

Myosin-7: A
Actin, alpha cardiac muscle 1: BCDEF
Tropomyosin alpha-1 chain: GH

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
M

B
B

C
C

D
D

E
E

F
F

G
O

H
P

Myosin-7

Actin, alpha cardiac muscle 1

Tropomyosin alpha-1 chain

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