L-ascorbate—cytochrome-b5 reductase

L-ascorbate—cytochrome-b5 reductase
Identifiers
EC number 1.10.2.1
CAS number 37237-57-3
Databases
IntEnz IntEnz view
BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB structures RCSB PDB PDBe PDBsum
Gene Ontology AmiGO / QuickGO

In enzymology, a L-ascorbate—cytochrome-b5 reductase (EC 1.10.2.1) is an enzyme that catalyzes the chemical reaction

L-ascorbate + ferricytochrome b5 monodehydroascorbate + ferrocytochrome b5 + H+

Thus, the two substrates of this enzyme are L-ascorbate and ferricytochrome b5, whereas its 3 products are monodehydroascorbate, ferrocytochrome b5, and H+.

This enzyme belongs to the family of oxidoreductases, specifically those acting on diphenols and related substances as donor with a cytochrome as acceptor. The systematic name of this enzyme class is L-ascorbate:ferricytochrome-b5 oxidoreductase. This enzyme is also called ascorbate-cytochrome b5 reductase.

References

    • Everling FB, Weis W, Staudinger H (1969). "[Kinetic studies on an ascorbate: ferricytochrome b5 oxidoreductase (EC 1.1.2.?)]". Hoppe-Seyler's Z. Physiol. Chem. 350 (12): 1485&ndash, 92. PMID 5363650.


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