9YK9
The structure of the cardiac native crossbridge in the rigor state, myosin heads bound to actin molecules 1 and 2
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, B, C, D (A, B, C, D) | Actin, alpha cardiac muscle 1 | polymer | 377 | 42064.9 | 4 | UniProt (B6VNT8) Pfam (PF00022) | Sus scrofa (pig) | Cardiac muscle alpha actin 1 |
| 2 | E, F, G, H (E, F, G, H) | Tropomyosin alpha-1 chain | polymer | 284 | 32762.7 | 4 | UniProt (P42639) Pfam (PF00261) | Sus scrofa (pig) | Alpha-tropomyosin,Tropomyosin-1 |
| 3 | I (I) | Troponin T2, cardiac type | polymer | 285 | 33941.7 | 1 | UniProt (A0A5G2Q8N0) Pfam (PF00992) | Sus scrofa (pig) | |
| 4 | J, K (J, K) | Myosin-7 | polymer | 1935 | 223649.1 | 2 | UniProt (P79293) Pfam (PF02736) Pfam (PF00063) Pfam (PF01576) | Sus scrofa (pig) | Myosin heavy chain 7,Myosin heavy chain slow isoform,MyHC-slow,Myosin heavy chain,cardiac muscle beta isoform,MyHC-beta |
| 5 | L, M (L, M) | Myosin light chain 3 | polymer | 196 | 21788.9 | 2 | UniProt (F1SNW4) | Sus scrofa (pig) | Myosin light chain 1,slow-twitch muscle B/ventricular isoform |
| 6 | N, P, R, T (A, B, C, D) | ADENOSINE-5'-DIPHOSPHATE | non-polymer | 427.2 | 4 | Chemie (ADP) | |||
| 7 | O, Q, S, U (A, B, C, D) | MAGNESIUM ION | non-polymer | 24.3 | 4 | Chemie (MG) PubChem (888) |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 13 |
| Total formula weight | 824127.9 | |
| Non-Polymers* | Number of molecules | 8 |
| Total formula weight | 1806.0 | |
| All* | Total formula weight | 825933.9 |
