MolNFT v1 · #169257 · protein
Bovine cardiac myosin in complex with chicken skeletal actin and human cardiac tropomyosin in the rigor state
6X5Z · Actin, alpha skeletal muscle: “Bovine cardiac myosin in complex with chicken skeletal actin and human cardiac tropomyosin in the rigor state”. Electron microscopy, 2 ligands (ADP, MG), 20 pockets (best druggability 0.85). MolNFT v1…
- PDB
- 6X5Z
- Type
- protein
- Length
- 3,554 residues
- Chains
- 8
- Method
- electron microscopy
- Collection
- MolNFT v1 / PDB
- Contract
- 0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
- Owner
- 0x3396CDB397284571d12822B4ae1189a8E22AAAAA
- Molecule
- Actin, alpha skeletal muscle; Tropomyosin alpha-1 chain; Myosin-7
- UniProt
- P68139, P09493, Q9BE39
- Ligands
- ADP, MG
- Pockets
- 20 · best druggability 0.85
Structure
electron microscopy · 3 distinct chains · 49% helix, 13% strand (DSSP).
| Chain | Molecule | Type | Residues | Secondary structure | UniProt |
|---|---|---|---|---|---|
| B, A, C | Actin, alpha skeletal muscle | protein | 369 | 40% helix, 18% strand | P68139 |
| O, P | Tropomyosin alpha-1 chain | protein | 166 | 99% helix, 0% strand | P09493 |
| G, D, J | Myosin-7 | protein | 705 | 43% helix, 13% strand | Q9BE39 |
Ligands and binding sites
- ADP · Adenosine-5'-diphosphate · ligand · 3 copies · chains B, A, C
- MG · Magnesium ion · metal · 3 copies · chains B, A, C
Binding sites are the residues within 4.5 Å of a ligand's heavy atoms.
Pockets
20 pockets found on a 1 Å grid, 20 with a druggability of 0.5 or more.
| Volume (ų) | Druggability | Buriedness | Lining residues | Inside | |
|---|---|---|---|---|---|
| 1 | 977 | 0.85 | 0.86 | 101 | empty |
| 2 | 1017 | 0.84 | 0.85 | 84 | empty |
| 3 | 619 | 0.82 | 0.87 | 80 | ADP, MG |
| 4 | 1176 | 0.81 | 0.82 | 95 | empty |
| 5 | 411 | 0.80 | 0.89 | 54 | ADP, MG |
Interfaces
20 interfaces between chains.
- O–P · 4436 Ų buried · 7 hydrogen bonds · protein-protein
- B–A · 1160 Ų buried · 11 hydrogen bonds · protein-protein
- B–C · 1133 Ų buried · 11 hydrogen bonds · protein-protein
- A–D · 1070 Ų buried · 13 hydrogen bonds · protein-protein
- B–G · 1069 Ų buried · 13 hydrogen bonds · protein-protein
Modifications
Observed in the structure: 3 covalent (covalent ligand).
Compared structures
- 6X5Z · Bovine Cardiac Myosin in Complex with Chicken Skeletal Actin and Human Cardiac… · the same entry in another collection · chain J against J, TM-score 1.00
- P68139 · AlphaFold monomer V2.0 prediction for actin, alpha skeletal muscle (P68139) · a predicted model of the same protein · chain B against A, TM-score 0.95
- Q9BE39 · AlphaFold monomer V2.0 prediction for myosin-7 (Q9BE39) · a predicted model of the same protein · chain G against A, TM-score 0.82
Analyse
- Open in the research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides and crosslinks on the 3D structure
- Every structure of UniProt P68139
- Every structure of UniProt P09493
- Every structure of UniProt Q9BE39
- Elsewhere: RCSB PDB 6X5Z · PDBe 6X5Z · UniProt P68139 · UniProt P09493 · UniProt Q9BE39
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