| Literature DB >> 11224565 |
A Kikuchi1, S Y Park, H Miyatake, D Sun, M Sato, T Yoshida, Y Shiro.
Abstract
Biliverdin reductase (BVR) is a soluble cytoplasmic enzyme that catalyzes the conversion of biliverdin to bilirubin using NADH or NADPH as electron donor. Bilirubin is a significant biological antioxidant, but it is also neurotoxic and the cause of kernicterus. In this study, we have determined the crystal structure of rat BVR at 1.4 A resolution. The structure contains two domains: an N-terminal domain characteristic of a dinucleotide binding fold (Rossmann fold) and a C-terminal domain that is predominantly an antiparallel six-stranded beta-sheet. Based on this structure, we propose modes of binding for NAD(P)H and biliverdin, and a possible mechanism for the enzyme.Entities:
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Year: 2001 PMID: 11224565 DOI: 10.1038/84955
Source DB: PubMed Journal: Nat Struct Biol ISSN: 1072-8368