CATH Classification
| Level | CATH Code | Description | 
|---|---|---|
 
	 | 
    3 | Alpha Beta | 
 
	 | 
    3.90 | Alpha-Beta Complex | 
 
	 | 
    3.90.700 | Flavocytochrome C3; Chain A, domain 1 | 
 
	 | 
    3.90.700.10 | Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain | 
Domain Context
CATH Clusters
| Superfamily | Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain | 
| Functional Family | 
Enzyme Information
| 1.3.5.4 | 
							 Fumarate reductase (quinol). 
							based on mapping to UniProt P0C278 		
							Succinate + a quinone = fumarate + a quinol. 
							-!- The enzyme, which is found in anaerobic and facultative organisms such as bacteria, parasitic helminthes, and lower marine organisms, utilizes low potential quinols, such as menaquinol and rhodoquinol, to reduce fumarate as the final step of an anaerobic respiratory chain. -!- The enzyme is known as complex II of the electron transfer chain, similarly to EC 1.3.5.1, to which it is closely related. 
						 | 
					
UniProtKB Entries (1)
| P0C278 | 
						 FRDA_SHEFR 
						Shewanella frigidimarina 
						Fumarate reductase flavoprotein subunit 
					 | 
				
PDB Structure
| PDB | 1P2H | 
| External Links | |
| Method | X-RAY DIFFRACTION | 
| Organism | Shewanella | 
| Primary Citation | 
					 Histidine 61: An Important Heme Ligand in the Soluble Fumarate Reductase from Shewanella
frigidimarina 
					    
					    Biochemistry 
					    
					 | 
			
