2-oxoisovalerate dehydrogenase (acylating)

2-oxoisovalerate dehydrogenase (acylating)
Identifiers
EC number 1.2.1.25
CAS number 37211-61-3
Databases
IntEnz IntEnz view
BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB structures RCSB PDB PDBe PDBsum
Gene Ontology AmiGO / EGO

In enzymology, a 2-oxoisovalerate dehydrogenase (acylating) (EC 1.2.1.25) is an enzyme that catalyzes the chemical reaction

3-methyl-2-oxobutanoate + CoA + NAD+ 2-methylpropanoyl-CoA + CO2 + NADH

The 3 substrates of this enzyme are 3-methyl-2-oxobutanoate, CoA, and NAD+, whereas its 3 products are 2-methylpropanoyl-CoA, CO2, 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 3-methyl-2-oxobutanoate:NAD+ 2-oxidoreductase (CoA-methyl-propanoylating). Other names in common use include 2-oxoisovalerate dehydrogenase, and alpha-ketoisovalerate dehydrogenase. This enzyme participates in valine, leucine and isoleucine degradation.

References

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