2AI3
Purine nucleoside phosphorylase from calf spleen
Entity
Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
1 | A | Purine nucleoside phosphorylase | polymer | 289 | 32127.5 | 1 | UniProt (P55859) Pfam (PF01048) In PDB | Bos taurus (cattle) | Inosine phosphorylase, PNP |
2 | A | MAGNESIUM ION | non-polymer | 24.3 | 1 | Chemie (MG) | |||
3 | A | ZINC ION | non-polymer | 65.4 | 1 | Chemie (ZN) | |||
4 | A | TRIS-HYDROXYMETHYL-METHYL-AMMONIUM | non-polymer | 122.1 | 1 | Chemie (144) | |||
5 | A | (2S,4R,6R,6AS)-4-(2-AMINO-6-OXO-1,6-DIHYDROPURIN-9-YL)-6-(HYDROXYMETHYL)-TETRAHYDROFURO[3,4-D][1,3]DIOXOL-2-YLPHOSPHONI C ACID | non-polymer | 375.2 | 1 | Chemie (P2G) | |||
6 | water | water | 18.0 | 175 | Chemie (HOH) |
Sequence viewer
Contents of the asymmetric unit
Polymers | Number of chains | 1 |
Total formula weight | 32127.5 | |
Non-Polymers* | Number of molecules | 4 |
Total formula weight | 587.1 | |
All* | Total formula weight | 32714.6 |