7F6N
Crystal structure of metal-citrate-binding mutant (S26A) protein (MctA) of ABC transporter endogenously bound to Mg2+-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, C | Iron ABC transporter, periplasmic iron-binding protein | polymer | 342 | 38167.4 | 3 | UniProt (Q53VZ2) Pfam (PF01547) In PDB | Thermus thermophilus (strain ATCC 27634 / DSM 579 / HB8) | |
| 2 | A, B, C | MAGNESIUM ION | non-polymer | 24.3 | 3 | Chemie (MG) | |||
| 3 | A, B, C | CITRIC ACID | non-polymer | 192.1 | 3 | Chemie (CIT) | |||
| 4 | A, B, C | DI(HYDROXYETHYL)ETHER | non-polymer | 106.1 | 4 | Chemie (PEG) | |||
| 5 | B, C | 1,2-ETHANEDIOL | non-polymer | 62.1 | 4 | Chemie (EDO) | |||
| 6 | C | R-1,2-PROPANEDIOL | non-polymer | 76.1 | 1 | Chemie (PGR) | |||
| 7 | water | water | 18.0 | 307 | Chemie (HOH) |
Sequence modifications
A, B, C: 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 | 3 |
| Total formula weight | 114502.2 | |
| Non-Polymers* | Number of molecules | 15 |
| Total formula weight | 1398.1 | |
| All* | Total formula weight | 115900.4 |
