7F6F
Crystal structure of metal-citrate-binding protein (MctA) of ABC transporter endogenously bound to Mg2+-citrate complex (Form II)
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 | 38183.4 | 2 | UniProt (Q53VZ2) Pfam (PF01547) | Thermus thermophilus (strain ATCC 27634 / DSM 579 / HB8) | |
| 2 | C, I (A, B) | MAGNESIUM ION | non-polymer | 24.3 | 2 | Chemie (MG) | |||
| 3 | D, J (A, B) | CITRIC ACID | non-polymer | 192.1 | 2 | Chemie (CIT) | |||
| 4 | E, F, G, K (A, B) | 1,2-ETHANEDIOL | non-polymer | 62.1 | 4 | Chemie (EDO) | |||
| 5 | H (A) | S-1,2-PROPANEDIOL | non-polymer | 76.1 | 1 | Chemie (PGO) | |||
| 6 | L, M (B) | DI(HYDROXYETHYL)ETHER | non-polymer | 106.1 | 2 | Chemie (PEG) | |||
| 7 | N (B) | CARBON DIOXIDE | non-polymer | 44.0 | 1 | Chemie (CO2) | |||
| 8 | O, P (A, B) | water | water | 18.0 | 318 | Chemie (HOH) |
Sequence modifications
A, B: 1 - 340 (UniProt: Q53VZ2)
| PDB | External Database | Details |
|---|---|---|
| Met -1 | - | initiating methionine |
| Met 0 | - | expression tag |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 76366.8 | |
| Non-Polymers* | Number of molecules | 12 |
| Total formula weight | 1013.5 | |
| All* | Total formula weight | 77380.3 |
