Cytochrome b5
| Cytochrome b5 | |||||||
|---|---|---|---|---|---|---|---|
| Identifiers | |||||||
| Symbol | CYB5A | ||||||
| Alt. symbols | CYB5 | ||||||
| NCBI gene | 1528 | ||||||
| HGNC | 2570 | ||||||
| OMIM | 250790 | ||||||
| PDB | 1JEX | ||||||
| RefSeq | NM_001914 | ||||||
| UniProt | P00167 | ||||||
| Other data | |||||||
| Locus | Chr. 18 q23 | ||||||
| 
 | |||||||
| Cytochrome b5 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| Symbol | Cyt_B5 | ||||||||
| Pfam | PF00173 | ||||||||
| InterPro | IPR001199 | ||||||||
| PROSITE | PDOC00170 | ||||||||
| Membranome | 211 | ||||||||
| 
 | |||||||||
Cytochromes b5 are ubiquitous electron transport hemoproteins found in animals, plants, fungi and purple phototrophic bacteria. The microsomal and mitochondrial variants are membrane-bound, while bacterial and those from erythrocytes and other animal tissues are water-soluble. The family of cytochrome b5-like proteins includes (besides cytochrome b5 itself) hemoprotein domains covalently associated with other redox domains in flavocytochrome cytochrome b2 (L-lactate dehydrogenase; EC 1.1.2.3), sulfite oxidase (EC 1.8.3.1), plant and fungal nitrate reductases (EC 1.7.1.1, EC 1.7.1.2, EC 1.7.1.3), and plant and fungal cytochrome b5/acyl lipid desaturase fusion proteins.