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| Cyb561d2 | Cytochrome b561 domain-containing protein 2; Two-heme-containing cytochrome that catalyzes ascorbate- dependent trans-membrane ferric-chelate reduction. (222 aa) | ||||
| Cyb561d1 | Cytochrome b561 domain-containing protein 1. (229 aa) | ||||
| Cyb561a3 | Cytochrome b ascorbate-dependent protein 3; Ferric-chelate reductase that reduces Fe(3+) to Fe(2+) before its transport from the endosome to the cytoplasm. Probably uses ascorbate as electron donor. (242 aa) | ||||
| Frrs1 | Ferric-chelate reductase 1; Ferric-chelate reductases reduce Fe(3+) to Fe(2+) before its transport from the endosome to the cytoplasm. (592 aa) | ||||
| Cyb561 | Cytochrome b561; Secretory vesicle-specific electron transport protein. (250 aa) | ||||
| Cybrd1 | Cytochrome b reductase 1; Ferric-chelate reductase that reduces Fe(3+) to Fe(2+). Present at the brush border of duodenal enterocytes where it probably reduces dietary Fe(3+) thereby facilitating its transport into the mucosal cells. Uses ascorbate as electron donor. May be involved in extracellular ascorbate recycling in erythrocyte membranes. May also act as a ferrireductase in airway epithelial cells. (290 aa) | ||||