CATH Classification
| Level | CATH Code | Description |
|---|---|---|
|
3 | Alpha Beta |
|
3.10 | Roll |
|
3.10.20 | Ubiquitin-like (UB roll) |
|
3.10.20.30 | Beta-grasp domain |
Domain Context
CATH Clusters
| Superfamily | 3.10.20.30 |
| Functional Family | Succinate dehydrogenase [ubiquinone] iron-sulfur subunit, mitochondrial |
Enzyme Information
| 1.3.5.1 |
Succinate dehydrogenase (quinone).
based on mapping to UniProt Q9YHT2
Succinate + a quinone = fumarate + a quinol.
-!- The enzyme is found in the inner mitochondrial membrane in eukaryotes and the plasma membrane of many aerobic or facultative bacteria. -!- It catalyzes succinate oxidation in the citric acid cycle and transfers the electrons to quinones in the membrane, thus constituting a part of the aerobic respiratory chain (known as complex II). -!- In vivo the enzyme uses the quinone found in the organism - eukaryotic enzymes utilize ubiquinone, bacterial enzymes utilize ubiquinone or menaquinone, and archaebacterial enzymes from the Sulfolobus genus use caldariellaquinone. -!- Cf. EC 1.3.5.4.
|
UniProtKB Entries (1)
| Q9YHT2 |
SDHB_CHICK
Gallus gallus
Succinate dehydrogenase [ubiquinone] iron-sulfur subunit, mitochondrial
|
PDB Structure
| PDB | 2WQY |
| External Links | |
| Method | X-RAY DIFFRACTION |
| Organism | |
| Primary Citation |
Remodelling of Carboxin Binding to the Q-Site of Avian Respiratory Complex II
To be Published
|