7F6O
Crystal structure of metal-citrate-binding mutant (S26A) protein (MctA) of ABC transporter endogenously bound to Mn2+-citrate complex
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, B (A, B) | Iron ABC transporter, periplasmic iron-binding protein | polymer | 342 | 38167.4 | 2 | UniProt (Q53VZ2) Pfam (PF01547) | Thermus thermophilus (strain ATCC 27634 / DSM 579 / HB8) | |
| 2 | C, K (A, B) | MANGANESE (II) ION | non-polymer | 54.9 | 2 | Chemie (MN) | |||
| 3 | D, L (A, B) | CITRIC ACID | non-polymer | 192.1 | 2 | Chemie (CIT) | |||
| 4 | E, M (A, B) | SULFATE ION | non-polymer | 96.1 | 2 | Chemie (SO4) | |||
| 5 | F, N (A, B) | SULFITE ION | non-polymer | 80.1 | 2 | Chemie (SO3) | |||
| 6 | G, H, P (A, B) | 1,2-ETHANEDIOL | non-polymer | 62.1 | 3 | Chemie (EDO) | |||
| 7 | I (A) | GLYCEROL | non-polymer | 92.1 | 1 | Chemie (GOL) | |||
| 8 | J (A) | TETRAETHYLENE GLYCOL | non-polymer | 194.2 | 1 | Chemie (PG4) | |||
| 9 | O (B) | SULFUR DIOXIDE | non-polymer | 64.1 | 1 | Chemie (SO2) | |||
| 10 | Q (B) | DI(HYDROXYETHYL)ETHER | non-polymer | 106.1 | 1 | Chemie (PEG) | |||
| 11 | R, S (A, B) | water | water | 18.0 | 182 | Chemie (HOH) |
Sequence modifications
A, B: 1 - 340 (UniProt: Q53VZ2)
| PDB | External Database | Details |
|---|---|---|
| Met -1 | - | initiating methionine |
| Met 0 | - | expression tag |
| Ala 26 | Ser 44 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 76334.8 | |
| Non-Polymers* | Number of molecules | 15 |
| Total formula weight | 1489.1 | |
| All* | Total formula weight | 77823.9 |
