Protein
NADPH-dependent methylglyoxal reductase GRE2
Organism
Saccharomyces cerevisiae (strain ATCC 204508 / S288c)
Function
Catalyzes the irreversible reduction of the cytotoxic compound methylglyoxal (MG, 2-oxopropanal) to (S)-lactaldehyde as an alternative to detoxification of MG by glyoxalase I GLO1. MG is synthesized via a bypath of glycolysis from dihydroxyacetone phosphate and is believed to play a role in cell cycle regulation and stress adaptation. Also catalyzes the reduction of 3-methylbutanal to 3-methylbutanol. Acts as a suppressor of 3-methylbutanol-induced filamentation by modulating the levels of 3-methylbutanal, the signal to which cells respond by filamentation. Also involved in ergosterol metabolism.
Similarity
Belongs to the NAD(P)-dependent epimerase/dehydratase family. Dihydroflavonol-4-reductase subfamily.
Sequence
MSVFVSGANGFIAQHIVDLLLKEDYKVIGSARSQEKAENLTEAFGNNPKFSMEVVPDISKLDAFDHVFQKHGKDIKIVLHTASPFCFDITDSERDLLIPAVNGVKGILHSIKKYAADSVERVVLTSSYAAVFDMAKENDKSLTFNEESWNPATWESCQSDPVNAYCGSKKFAEKAAWEFLEENRDSVKFELTAVNPVYVFGPQMFDKDVKKHLNTSCELVNSLMHLSPEDKIPELFGGYIDVRDVAKAHLVAFQKRETIGQRLIVSEARFTMQDVLDILNEDFPVLKGNIPVGKPGSGATHNTLGATLDNKKSKKLLGFKFRNLKETIDDTASQILKFEGRI