细胞色素P450单氧化酶抗体

细胞色素P450单氧化酶抗体 Background: Cytochrome P450s are haem-thiolate proteins involved in the oxidative degradation of various compounds. They are particularly well known for their role in the degradation of environmental toxins and mutagens. They can be divided into 4 classes, according to the method by which electrons from NAD(P)H are delivered to the catalytic site. Sequence conservation is relatively low within the family - there are only 3 absolutely conserved residues - but their general topography and structural fold are highly conserved. The conserved core is composed of a coil termed the 'meander', a four-helix bundle, helices J and K, and two sets of beta-sheets. These constitute the haem-binding loop (with an absolutely conserved cysteine that serves as the 5th ligand for the haem iron), the proton-transfer groove and the absolutely conserved EXXR motif in helix K. While prokaryotic P450s are soluble proteins, most eukaryotic P450s are associated with microsomal membranes. their general enzymatic function is to catalyse regiospecific and stereospecific oxidation of non-activated hydrocarbons at physiological temperatures. Also known as: Cytochrome P450 monooxygenase; CPR; CYPOR; DKFZp686G04235; FLJ26468; NADPH Cytochrome P450 Reductase; P450 Cytochrome Oxidoreductase; P450R; POR; CP2J3_RAT; Cytochrome P450 2J3.细胞色素P450单氧化酶抗体