1STF
THE REFINED 2.4 ANGSTROMS X-RAY CRYSTAL STRUCTURE OF RECOMBINANT HUMAN STEFIN B IN COMPLEX WITH THE CYSTEINE PROTEINASE PAPAIN: A NOVEL TYPE OF PROTEINASE INHIBITOR INTERACTION
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A (E) | PAPAIN | polymer | 212 | 23507.4 | 1 | UniProt (P00784) Pfam (PF00112) | Carica papaya (papaya) | |
| 2 | B (I) | STEFIN B (CYSTATIN B) | polymer | 98 | 11173.6 | 1 | UniProt (P04080) Pfam (PF00031) | Homo sapiens (human) | |
| 3 | C, D (E, I) | water | water | 18.0 | 142 | Chemie (HOH) |
Sequence modifications
E: 1 - 212 (UniProt: P00784)
I: 6 - 125 (UniProt: P04080)
| PDB | External Database | Details |
|---|---|---|
| Gln 47 | Glu 180 | conflict |
| Gln 118 | Glu 251 | conflict |
| Gln 135 | Glu 268 | conflict |
| PDB | External Database | Details |
|---|---|---|
| Ser 8 | Cys 3 | conflict |
| Tyr 36 | Glu 31 | conflict |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 34681.0 | |
| All* | Total formula weight | 34681.0 |
