1XS4
dCTP deaminase from Escherichia coli- E138A mutant enzyme in complex with dCTP
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, E... (A, B, C, D, E...) | Deoxycytidine triphosphate deaminase | polymer | 193 | 21405.8 | 6 | UniProt (P28248) Pfam (PF22769) | Escherichia coli | dCTP deaminase |
| 2 | G, I, K, M, O... (A, B, C, D, E...) | MAGNESIUM ION | non-polymer | 24.3 | 6 | Chemie (MG) | |||
| 3 | H, J, L, N, P... (A, B, C, D, E...) | 2'-DEOXYCYTIDINE-5'-TRIPHOSPHATE | non-polymer | 467.2 | 6 | Chemie (DCP) | |||
| 4 | S, T, U, V, W... (A, B, C, D, E...) | water | water | 18.0 | 229 | Chemie (HOH) |
Sequence modifications
A, B, C, D, E, F: 1 - 193 (UniProt: P28248)
| PDB | External Database | Details |
|---|---|---|
| Mse 1 | Met 1 | modified residue |
| Mse 69 | Met 69 | modified residue |
| Mse 119 | Met 119 | modified residue |
| Ala 138 | Glu 138 | engineered mutation |
| Mse 153 | Met 153 | modified residue |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 6 |
| Total formula weight | 128434.8 | |
| Non-Polymers* | Number of molecules | 12 |
| Total formula weight | 2948.8 | |
| All* | Total formula weight | 131383.6 |
