NCIt definition : Human CYB5R3 wild-type allele is located in the vicinity of 22q13.2 and is approximately
105 kb in length. This allele, which encodes NADH-cytochrome b5 reductase 3 protein,
is involved in fatty acid metabolism, cholesterol biosynthesis and the reduction of
methemoglobin. Mutations in the gene are associated with CYB5R3-related methemoglobinemia.;