1S1D
Structure and protein design of human apyrase
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) | apyrase | polymer | 331 | 37042.2 | 2 | UniProt (Q8WVQ1) Pfam (PF06079) | Homo sapiens (human) | Ca2+-dependent endoplasmic reticulum nucleoside diphosphatase; apyrase; soluble calcium-activated nucleotidase SCAN-1 |
| 2 | C, J (A, B) | CALCIUM ION | non-polymer | 40.1 | 2 | Chemie (CA) | |||
| 3 | D (A) | ACETATE ION | non-polymer | 59.0 | 1 | Chemie (ACT) | |||
| 4 | E, M (A, B) | PHOSPHOMETHYLPHOSPHONIC ACID GUANOSYL ESTER | non-polymer | 441.2 | 2 | Chemie (GP2) | |||
| 5 | F, G, H, I, N... (A, B) | 2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL | non-polymer | 122.1 | 7 | Chemie (TRS) | |||
| 6 | K, L (B) | SULFATE ION | non-polymer | 96.1 | 2 | Chemie (SO4) | |||
| 7 | Q, R (A, B) | water | water | 18.0 | 650 | Chemie (HOH) |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 74084.4 | |
| Non-Polymers* | Number of molecules | 14 |
| Total formula weight | 2068.8 | |
| All* | Total formula weight | 76153.1 |
