4NEC
Conversion of a Disulfide Bond into a Thioacetal Group during Echinomycin Biosynthesis
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, C, E, G (A, B, C, D) | Putative SAM-dependent methyltransferase | polymer | 264 | 28509.7 | 4 | UniProt (Q0X0A7) Pfam (PF13649) | Streptomyces lasaliensis | |
| 2 | B, D, F, H (E, F, G, H) | Echinomycin | polymer | 8 | 809.0 | 4 | NOR (NOR01126) BIRD (PRD_000491) | Streptomyces echinatus | |
| 3 | I, O, S, W (A, B, C, D) | S-ADENOSYL-L-HOMOCYSTEINE | non-polymer | 384.4 | 4 | Chemie (SAH) | |||
| 4 | J, Z (A, D) | TRIETHYLENE GLYCOL | non-polymer | 150.2 | 2 | Chemie (PGE) | |||
| 5 | K, L, T (A, C) | SODIUM ION | non-polymer | 23.0 | 3 | Chemie (NA) | |||
| 6 | AA, BA, M, N, Q... (H, E, F, G) | 2-CARBOXYQUINOXALINE | non-polymer | 174.2 | 8 | BIRD (PRD_000491) Chemie (QUI) | |||
| 7 | P (B) | ACETATE ION | non-polymer | 59.0 | 1 | Chemie (ACT) | |||
| 8 | X, Y (D) | POLYETHYLENE GLYCOL (N=34) | non-polymer | 1529.8 | 2 | Chemie (15P) | |||
| 9 | CA, DA, EA, FA, GA... (A, B, F, C, G...) | water | water | 18.0 | 320 | Chemie (HOH) |
Sequence modifications
A, B, C, D: 1 - 224 (UniProt: Q0X0A7)
| PDB | External Database | Details |
|---|---|---|
| Met -19 | - | expression tag |
| Gly -18 | - | expression tag |
| Ser -17 | - | expression tag |
| Ser -16 | - | expression tag |
| His -15 | - | expression tag |
| His -14 | - | expression tag |
| His -13 | - | expression tag |
| His -12 | - | expression tag |
| His -11 | - | expression tag |
| His -10 | - | expression tag |
| Ser -9 | - | expression tag |
| Ser -8 | - | expression tag |
| Gly -7 | - | expression tag |
| Leu -6 | - | expression tag |
| Val -5 | - | expression tag |
| Pro -4 | - | expression tag |
| Arg -3 | - | expression tag |
| Gly -2 | - | expression tag |
| Ser -1 | - | expression tag |
| His 0 | - | expression tag |
| Trp 225 | - | expression tag |
| Asn 226 | - | expression tag |
| Ser 227 | - | expression tag |
| Ser 228 | - | expression tag |
| Ser 229 | - | expression tag |
| Val 230 | - | expression tag |
| Asp 231 | - | expression tag |
| Lys 232 | - | expression tag |
| Leu 233 | - | expression tag |
| Ala 234 | - | expression tag |
| Ala 235 | - | expression tag |
| Ala 236 | - | expression tag |
| Leu 237 | - | expression tag |
| Glu 238 | - | expression tag |
| His 239 | - | expression tag |
| His 240 | - | expression tag |
| His 241 | - | expression tag |
| His 242 | - | expression tag |
| His 243 | - | expression tag |
| His 244 | - | expression tag |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 8 |
| Total formula weight | 117274.8 | |
| Non-Polymers* | Number of molecules | 20 |
| Total formula weight | 6418.9 | |
| All* | Total formula weight | 123693.7 |
