Purity: > 95% by SDS - PAGE Format: Liquid in 20mM Tris pH 8.5, 10% glycerol, 1mM DTT. Biliverdin reductase B (BLVRB) is an enzyme (EC 1.3.1.24) that converts biliverdin to bilirubin, converting a double-bond between the second and third pyrrole ring into a single-bond. BLVRB is found that major erythrocytic heme catabolic pathway in humans and most mammalian species. Biliverdin reductase is abundantly expressed in kidney, spleen, liver and brain as well as at lower levels in the thymus and minimal levels being detected in testis. Recombinant BLVRB protein was expressed in E.coli and purified by using conventional chromatography techniques.