4M32
Crystal structure of gated-pore mutant D138N of second DNA-Binding protein under starvation from Mycobacterium smegmatis
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 | Putative starvation-induced DNA protecting protein/Ferritin and Dps | polymer | 168 | 18511.7 | 4 | UniProt (A0QXB7) Pfam (PF00210) In PDB | Mycobacterium smegmatis | Starvation-inducible DNA-binding protein or fine tangled pili major subunit |
2 | A, B, D | MAGNESIUM ION | non-polymer | 24.3 | 3 | Chemie (MG) | |||
3 | A, B | CHLORIDE ION | non-polymer | 35.5 | 2 | Chemie (CL) | |||
4 | B, C | FE (II) ION | non-polymer | 55.8 | 4 | Chemie (FE2) | |||
5 | water | water | 18.0 | 418 | Chemie (HOH) |
Sequence modifications
A, B, C, D: 1 - 161 (UniProt: A0QXB7)
PDB | External Database | Details |
---|---|---|
Met -6 | - | expression tag |
Ala -5 | - | expression tag |
Ser -4 | - | expression tag |
Val -3 | - | expression tag |
Gly -2 | - | expression tag |
Leu -1 | - | expression tag |
Val 0 | - | expression tag |
Asn 138 | Asp 138 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
Polymers | Number of chains | 4 |
Total formula weight | 74046.8 | |
Non-Polymers* | Number of molecules | 9 |
Total formula weight | 367.2 | |
All* | Total formula weight | 74414.0 |