3S8K
Crystal structure of a papaya latex serine protease inhibitor (PPI) at 1.7A resolution
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) | Latex serine proteinase inhibitor | polymer | 184 | 20682.9 | 2 | UniProt (P80691) Pfam (PF00197) | Carica papaya (mamon) | |
| 2 | C, D (C, D) | alpha-L-fucopyranose-(1-3)-[2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)]2-acetamido-2-deoxy-beta-D-glucopyranose | branched | 570.5 | 2 | In PDB GlyTouCan (G11971MR) | |||
| 3 | E, F (A) | COBALT (II) ION | non-polymer | 58.9 | 2 | Chemie (CO) | |||
| 4 | G, H, P (A, B) | AMMONIUM ION | non-polymer | 18.0 | 3 | Chemie (NH4) | |||
| 5 | I, J, Q, R (A, B) | GLYCEROL | non-polymer | 92.1 | 4 | Chemie (GOL) | |||
| 6 | K, L, M, N, O... (A, B) | SULFATE ION | non-polymer | 96.1 | 7 | Chemie (SO4) | |||
| 7 | U, V (A, B) | water | water | 18.0 | 411 | Chemie (HOH) |
Sequence modifications
A, B: 1 - 184 (UniProt: P80691)
| PDB | External Database | Details |
|---|---|---|
| Arg 74 | Phe 74 | conflict |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 41365.8 | |
| Branched | Number of molecules | 2 |
| Total formula weight | 1141.1 | |
| Non-Polymers* | Number of molecules | 16 |
| Total formula weight | 1212.8 | |
| All* | Total formula weight | 43719.7 |
