1P2N
Structural consequences of accommodation of four non-cognate amino-acid residues in the S1 pocket of bovine trypsin and chymotrypsin
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, C | Chymotrypsinogen A | polymer | 245 | 25686.0 | 2 | UniProt (P00766) Pfam (PF00089) In PDB | Bos taurus (cattle) | |
| 2 | B, D | Pancreatic trypsin inhibitor | polymer | 58 | 6493.5 | 2 | UniProt (P00974) Pfam (PF00014) In PDB | Bos taurus (cattle) | Basic protease inhibitor, BPI, BPTI, Aprotinin |
| 3 | A, B, D | SULFATE ION | non-polymer | 96.1 | 6 | Chemie (SO4) | |||
| 4 | water | water | 18.0 | 537 | Chemie (HOH) |
Sequence modifications
B, D: 1 - 58 (UniProt: P00974)
| PDB | External Database | Details |
|---|---|---|
| Leu 15 | Lys 50 | engineered mutation |
| Leu 52 | Met 87 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 4 |
| Total formula weight | 64359.1 | |
| Non-Polymers* | Number of molecules | 6 |
| Total formula weight | 576.4 | |
| All* | Total formula weight | 64935.5 |
