4KX6
Plasticity of the quinone-binding site of the complex II homolog quinol:fumarate reductase
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, M | Fumarate reductase flavoprotein subunit | polymer | 577 | 63477.7 | 2 | UniProt (P00363) Pfam (PF00890) Pfam (PF02910) In PDB | Escherichia coli | |
| 2 | B, N | Fumarate reductase (Anaerobic), Fe-S subunit | polymer | 243 | 27021.9 | 2 | UniProt (C5A1E7) In PDB | Escherichia coli | |
| 3 | C, O | Fumarate reductase subunit C | polymer | 130 | 14882.8 | 2 | UniProt (C9QU46) In PDB | Escherichia coli | Fumarate reductase 15 kDa hydrophobic protein |
| 4 | D, P | Fumarate reductase subunit D | polymer | 119 | 13118.9 | 2 | UniProt (P0A8Q3) Pfam (PF02313) In PDB | Escherichia coli | Fumarate reductase 13 kDa hydrophobic protein |
| 5 | A, M | FLAVIN-ADENINE DINUCLEOTIDE | non-polymer | 785.5 | 2 | Chemie (FAD) | |||
| 6 | B, N | FE2/S2 (INORGANIC) CLUSTER | non-polymer | 175.8 | 2 | Chemie (FES) | |||
| 7 | B, N | FE3-S4 CLUSTER | non-polymer | 295.8 | 2 | Chemie (F3S) | |||
| 8 | B, N | IRON/SULFUR CLUSTER | non-polymer | 351.6 | 2 | Chemie (SF4) | |||
| 9 | D, N | MENAQUINONE-7 | non-polymer | 649.0 | 2 | Chemie (MQ7) |
Sequence modifications
C, O: 1 - 130 (UniProt: C9QU46)
| PDB | External Database | Details |
|---|---|---|
| Leu 29 | Glu 30 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 8 |
| Total formula weight | 237002.6 | |
| Non-Polymers* | Number of molecules | 10 |
| Total formula weight | 4515.6 | |
| All* | Total formula weight | 241518.2 |
