4R5Q
Crystal structure and nuclease activity of the CRISPR-associated Cas4 protein Pcal_0546 from Pyrobaculum calidifontis containing a [2Fe-2S] cluster
Replaces: 4ONBEntity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A (A) | CRISPR-associated exonuclease, Cas4 family | polymer | 216 | 25031.3 | 1 | UniProt (A3MTK6) Pfam (PF01930) | Pyrobaculum calidifontis JCM 11548 | |
| 2 | B (A) | MAGNESIUM ION | non-polymer | 24.3 | 1 | Chemie (MG) | |||
| 3 | C (A) | FE2/S2 (INORGANIC) CLUSTER | non-polymer | 175.8 | 1 | Chemie (FES) | |||
| 4 | D (A) | water | water | 18.0 | 21 | Chemie (HOH) |
Sequence modifications
A: 1 - 213 (UniProt: A3MTK6)
| PDB | External Database | Details |
|---|---|---|
| Phe -2 | - | expression tag |
| Asn -1 | - | expression tag |
| Gly 0 | - | expression tag |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 1 |
| Total formula weight | 25031.3 | |
| Non-Polymers* | Number of molecules | 2 |
| Total formula weight | 200.1 | |
| All* | Total formula weight | 25231.5 |
