3-hydroxyacyl-CoA dehydrogenase


In enzymology, a 3-hydroxyacyl-CoA dehydrogenase is an enzyme that catalyzes the chemical reaction
Thus, the two substrates of this enzyme are (S)-3-hydroxyacyl-CoA and NAD+, whereas its 3 products are 3-oxoacyl-CoA, NADH, and H+.
This enzyme belongs to the family of oxidoreductases, to be specific those acting on the CH-OH group of donor with NAD+ or NADP+ as acceptor.

Isozymes

In humans, the following genes encode proteins with 3-hydroxyacyl-CoA dehydrogenase activity:

Function

3-Hydroxyacyl CoA dehydrogenase is classified as an oxidoreductase. It is involved in fatty acid metabolic processes. Specifically it catalyzes the third step of beta oxidation; the oxidation of L-3-hydroxyacyl CoA by NAD+. The reaction converts the hydroxyl group into a keto group.
The end product is 3-ketoacyl CoA.

Metabolic pathways

This enzyme participates in 8 metabolic pathways:

Nomenclature

The systematic name of this enzyme class is -3-hydroxyacyl-CoA:NAD+ oxidoreductase. Other names in common use include:
  • 1-specific DPN-linked beta-hydroxybutyric dehydrogenase
  • 3-hydroxyacetyl-coenzyme A dehydrogenase
  • 3-hydroxyacyl coenzyme A dehydrogenase
  • 3-hydroxybutyryl-CoA dehydrogenase
  • 3-hydroxyisobutyryl-CoA dehydrogenase
  • 3-keto reductase
  • 3-L-hydroxyacyl-CoA dehydrogenase
  • 3beta-hydroxyacyl coenzyme A dehydrogenase
  • beta-hydroxy acid dehydrogenase
  • beta-hydroxyacyl CoA dehydrogenase
  • beta-hydroxyacyl dehydrogenase
  • beta-hydroxyacyl-coenzyme A synthetase
  • beta-hydroxyacylcoenzyme A dehydrogenase
  • beta-hydroxybutyrylcoenzyme A dehydrogenase
  • beta-keto-reductase
  • beta-ketoacyl-CoA reductase
  • L-3-hydroxyacyl CoA dehydrogenase
  • L-3-hydroxyacyl coenzyme A dehydrogenase

Structural studies

As of 20 January 2010, 22 structures have been solved for this class of enzymes, with PDB accession codes,,,,,,,,,,,,,,,,,,,,, and.