EC Number   |
Natural Substrates |
|---|
   7.2.1.3 | ascorbate[side 1] + Fe(III)[side 2] |
- |
| 7.2.1.3 | cupric-histidine[side 1] + ? |
- |
| 7.2.1.3 | ferric citrate[side 1] + ? |
- |
| 7.2.1.3 | L-(+)-ascorbate + ferricytochrome b5 |
- |
| 7.2.1.3 | L-(+)-ascorbate + ferricytochrome b5 |
the microsomal enzyme participates in the ascorbate-dependent fatty acid desaturation |
| 7.2.1.3 | more |
a few members of the CYB561 protein family function as ferric reductases in vivo |
| 7.2.1.3 | more |
trans-membrane ferric reductase activity is also demonstrated in a reconstituted proteoliposome system with ascorbate as the electron donor inside the liposomes, recombinant CGCytb as trans-membrane electron carrier, and ferricyanide as the electron acceptor outside the liposomes. A few members of the CYB561 protein family function as ferric reductases in vivo. The other heme-b center is responsible for the ascorbate oxidation by iozyme CGCytb |
