9YKN
The structure of the cardiac native crossbridge in the rigor state, myosin heads with essential and regulatory light chains bound to actin molecules 6 and 7
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, B (A, B) | Actin, alpha cardiac muscle 1 | polymer | 377 | 42064.9 | 2 | UniProt (B6VNT8) Pfam (PF00022) | Sus scrofa (pig) | Cardiac muscle alpha actin 1 |
| 2 | C, D, E, F (C, D, E, F) | Tropomyosin alpha-1 chain | polymer | 284 | 32762.7 | 4 | UniProt (P42639) Pfam (PF00261) | Sus scrofa (pig) | Alpha-tropomyosin,Tropomyosin-1 |
| 3 | G (G) | Troponin T2, cardiac type | polymer | 285 | 33941.7 | 1 | UniProt (A0A5G2Q8N0) Pfam (PF00992) | Sus scrofa (pig) | |
| 4 | H, I (H, I) | 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 | J, K (J, K) | 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 | L, M (L, M) | MYL2 | polymer | 166 | 18915.4 | 2 | UniProt (Q8MHY0) Pfam (PF13499) | Sus scrofa (pig) | Myosin light chain 2,Myosin regulatory light chain 2,ventricular/cardiac muscle isoform,Myosin regulatory light chain ventricular isoform |
| 7 | N, P (A, B) | ADENOSINE-5'-DIPHOSPHATE | non-polymer | 427.2 | 2 | Chemie (ADP) | |||
| 8 | O, Q (A, B) | MAGNESIUM ION | non-polymer | 24.3 | 2 | Chemie (MG) PubChem (888) |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 13 |
| Total formula weight | 777828.8 | |
| Non-Polymers* | Number of molecules | 4 |
| Total formula weight | 903.0 | |
| All* | Total formula weight | 778731.8 |
