(*) plastoquinol-
A group of one type of these compounds metabolizes a precursor to leukotrienes called arachidonic acid, and a deficiency of another type can lead to chronic granulomatous disease. A deficiency associated with a substrate of one type of these comes in a French-Canadian type, causes progressive damage to the central nervous system, and is called Leigh's Disease. Each monomer of (*) plastoquinol- plastocyanin reductase contains two types of these compounds. ATP production can be halted by cyanide binding to an oxidase associated with one of these. Apoptosis occurs when one type of these compounds activates a caspase cascade; that type is involved in moving electrons between complex III and IV of the electron transport chain. For 10 points, name these proteins that contain a heme group, examples of which include P450 and C.
A group of one type of these compounds metabolizes a precursor to leukotrienes called arachidonic acid, and a deficiency of another type can lead to chronic granulomatous disease.
cytochromes [accept answers that contain cytochrome, such as cytochrome B, cytochrome P450, or cytochrome C]