3PA8
Structure of the C. difficile TcdB cysteine protease domain in complex with a peptide inhibitor
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) | Toxin B | polymer | 254 | 28904.4 | 2 | UniProt (Q189K3) Pfam (PF11713) | Clostridium difficile | |
| 2 | C, G (A, B) | N-acetylglycyl-N-[(3S)-1-hydroxy-5-methyl-2-oxohexan-3-yl]-L-serinamide | non-polymer | 331.4 | 2 | BIRD (PRD_000971) Chemie (621) | |||
| 3 | D (A) | CALCIUM ION | non-polymer | 40.1 | 1 | Chemie (CA) | |||
| 4 | E, H (A, B) | SODIUM ION | non-polymer | 23.0 | 2 | Chemie (NA) | |||
| 5 | F, I (A, B) | INOSITOL HEXAKISPHOSPHATE | non-polymer | 660.0 | 2 | Chemie (IHP) | |||
| 6 | J, K (A, B) | water | water | 18.0 | 286 | Chemie (HOH) |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 57808.8 | |
| Non-Polymers* | Number of molecules | 7 |
| Total formula weight | 2068.9 | |
| All* | Total formula weight | 59877.7 |
