1YTZ
Crystal structure of skeletal muscle troponin in the Ca2+-activated state
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A (T) | Troponin T | polymer | 107 | 12694.7 | 1 | UniProt (P12620) Pfam (PF00992) | Gallus gallus (chicken) | |
| 2 | B (I) | Troponin I | polymer | 182 | 21116.2 | 1 | UniProt (P68246) Pfam (PF00992) | Gallus gallus (chicken) | Troponin I, fast-twitch isoform |
| 3 | C (C) | Troponin C | polymer | 162 | 18261.2 | 1 | UniProt (P02588) Pfam (PF13499) Pfam (PF00036) | Gallus gallus (chicken) | |
| 4 | D, E, J (T, I, C) | ALPHA-[4-(1,1,3,3 - TETRAMETHYLBUTYL)PHENYL]-OMEGA-HYDROXY-POLY(OXY-1,2-ETHANEDIYL) | non-polymer | 1527.9 | 3 | Chemie (DR6) | |||
| 5 | F, G, H, I (C) | CALCIUM ION | non-polymer | 40.1 | 4 | Chemie (CA) | |||
| 6 | K, L, M (T, I, C) | water | water | 18.0 | 33 | Chemie (HOH) |
Sequence modifications
I: 1 - 182 (UniProt: P68246)
| PDB | External Database | Details |
|---|---|---|
| Ser 48 | Cys 48 | engineered mutation |
| Ser 64 | Cys 64 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 3 |
| Total formula weight | 52072.1 | |
| Non-Polymers* | Number of molecules | 7 |
| Total formula weight | 4744.0 | |
| All* | Total formula weight | 56816.1 |
