Product name: Nitrite reductase
Product Description:
Nitrite reductase refers to any of several classes of enzymes that catalyze the reduction of nitrite. There are two classes of NIR's. A mutlti haem enzyme reduces NO2 to a variety of products. Copper containing enzymes carry out a single electron transfer to produce nitric oxide.
There are several types of iron based enzymes. Cytochrome cd1, or pseudomonas cytochrome oxidase contains two c and two d type hemes with two polypeptide chains. Different forms of this reductase catalyze the formation of nitric oxide or nitrous oxide. A version of this compound was originally called [Ferrocytochrome c-551:oxidoreductase]. It was initially considered an oxidase. It catalyzes the reduction of NO2 to NO. This tetraheme enzyme has two subunits, each containing a c-type and a d-type heme. The reduced d hemes bind nitrite and convert it to product.
Cytochrome C Nitrite Reductase （ccNIR） is a multiheme enzyme that converts nitrite to ammonia on each active site. The active site iron is bound to a protoporphyrin IX ring that is covalently linked to the enzyme's proteins.
