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Methylmalonate-semialdehyde dehydrogenase (acylating) : ウィキペディア英語版 | Methylmalonate-semialdehyde dehydrogenase (acylating)
In enzymology, a methylmalonate-semialdehyde dehydrogenase (acylating) () is an enzyme that catalyzes the chemical reaction :2-methyl-3-oxopropanoate + CoA + H2O + NAD+ propanoyl-CoA + HCO3- + NADH The 4 substrates of this enzyme are 2-methyl-3-oxopropanoate, CoA, H2O, and NAD+, whereas its 3 products are propanoyl-CoA, HCO3-, and NADH. This enzyme belongs to the family of oxidoreductases, specifically those acting on the aldehyde or oxo group of donor with NAD+ or NADP+ as acceptor. The systematic name of this enzyme class is 2-methyl-3-oxopropanoate:NAD+ 3-oxidoreductase (CoA-propanoylating). Other names in common use include MSDH, and MMSA dehydrogenase. This enzyme participates in 3 metabolic pathways: inositol metabolism, valine, leucine and isoleucine degradation, and propanoate metabolism. ==Structural studies==
As of late 2007, only one structure has been solved for this class of enzymes, with the PDB accession code .
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