Heme proteins of Giardia intestinalis.
Peterborough, Canada. In Exp Parasitol, Dec 2015
This includes the protozoan parasite Giardia intestinalis, which encodes five known heme proteins: a flavohemoglobin and four members of the cytochrome b5 family.
The mammalian molybdenum enzymes of mARC.
Kiel, Germany. In J Biol Inorg Chem, Mar 2015
In the presence of NADH, mARC proteins exert N-reductive activity together with the two electron transport proteins cytochrome b5 type B and NADH cytochrome b5 reductase.
Dap1/PGRMC1 binds and regulates cytochrome P450 enzymes.
Baltimore, United States. In Cell Metab, 2007
Despite the numerous physiological processes that P450 enzymes impact, the electron donors P450 oxidoreductase and cytochrome b5 are the only proteins known to interact with and modulate the activity of ER microsomal P450s.
Cytochrome P-450 3A4: regulation and role in drug metabolism.
Nashville, United States. In Annu Rev Pharmacol Toxicol, 1998
Several issues remain to be resolved regarding the catalytic activity of the P-450 3A4 protein, including rate-limiting steps and the need for cytochrome b5, divalent cations, and acidic phospholipid systems for optimal activity.