4QH0
Crystal structure of NucA from Streptococcus agalactiae with magnesium ion bound
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, B, C, D | DNA-entry nuclease (Competence-specific nuclease) | polymer | 225 | 25239.6 | 4 | UniProt (R5A2Y6) In PDB | Streptococcus agalactiae ILRI112 | |
| 2 | D, A, B, C | MAGNESIUM ION | non-polymer | 24.3 | 4 | Chemie (MG) | |||
| 3 | D, A, B, C | SULFATE ION | non-polymer | 96.1 | 23 | Chemie (SO4) | |||
| 4 | C, A, D | CHLORIDE ION | non-polymer | 35.5 | 6 | Chemie (CL) | |||
| 5 | D | 1,2-ETHANEDIOL | non-polymer | 62.1 | 2 | Chemie (EDO) | |||
| 6 | water | water | 18.0 | 770 | Chemie (HOH) |
Sequence modifications
A, B, C, D: 42 - 261 (UniProt: R5A2Y6)
| PDB | External Database | Details |
|---|---|---|
| Gly 37 | - | expression tag |
| Ser 38 | - | expression tag |
| Ala 39 | - | expression tag |
| Ala 40 | - | expression tag |
| Ala 41 | - | expression tag |
| Ala 148 | His 148 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 4 |
| Total formula weight | 100958.4 | |
| Non-Polymers* | Number of molecules | 35 |
| Total formula weight | 2643.5 | |
| All* | Total formula weight | 103602.0 |
