7F6E
Crystal structure of metal-citrate-binding protein (MctA) of ABC transporter endogenously bound to Mg2+-citrate complex (Form I)
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 (A, B, C) | Iron ABC transporter, periplasmic iron-binding protein | polymer | 342 | 38183.4 | 3 | UniProt (Q53VZ2) Pfam (PF01547) | Thermus thermophilus (strain ATCC 27634 / DSM 579 / HB8) | |
| 2 | D, QA, W (A, C, B) | MAGNESIUM ION | non-polymer | 24.3 | 3 | Chemie (MG) | |||
| 3 | E, RA, X (A, C, B) | CITRIC ACID | non-polymer | 192.1 | 3 | Chemie (CIT) | |||
| 4 | AA, BA, F, G, H... (B, A) | CHLORIDE ION | non-polymer | 35.5 | 8 | Chemie (CL) | |||
| 5 | CA, DA, EA, FA, J... (B, A) | CARBON DIOXIDE | non-polymer | 44.0 | 6 | Chemie (CO2) | |||
| 6 | GA, HA, L, M, N... (B, A, C) | GLYCEROL | non-polymer | 92.1 | 7 | Chemie (GOL) | |||
| 7 | IA, JA, KA, LA, MA... (B, A) | 1,2-ETHANEDIOL | non-polymer | 62.1 | 13 | Chemie (EDO) | |||
| 8 | PA, V (B, A) | (2S)-2-HYDROXYPROPANOIC ACID | non-polymer | 90.1 | 2 | Chemie (2OP) | |||
| 9 | OA (B) | S-1,2-PROPANEDIOL | non-polymer | 76.1 | 1 | Chemie (PGO) | |||
| 10 | UA, VA, WA (A, B, C) | water | water | 18.0 | 716 | Chemie (HOH) |
Sequence modifications
A, B, C: 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 | 3 |
| Total formula weight | 114550.2 | |
| Non-Polymers* | Number of molecules | 43 |
| Total formula weight | 2904.8 | |
| All* | Total formula weight | 117455.0 |
