Suvarna Garge (Editor)

3 hydroxyacyl CoA dehydrogenase

Updated on
Edit
Like
Comment
Share on FacebookTweet on TwitterShare on LinkedInShare on Reddit
EC number
  
1.1.1.35

IntEnz
  
IntEnz view

ExPASy
  
NiceZyme view

CAS number
  
9028-40-4

BRENDA
  
BRENDA entry

KEGG
  
KEGG entry

3-hydroxyacyl-CoA dehydrogenase

In enzymology, a 3-hydroxyacyl-CoA dehydrogenase (EC 1.1.1.35) is an enzyme that catalyzes the chemical reaction

Contents

(S)-3-hydroxyacyl-CoA + NAD+ 3-oxoacyl-CoA + NADH + H+

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:

  • HADH – Hydroxyacyl-Coenzyme A dehydrogenase
  • HSD17B10 – 3-Hydroxyacyl-CoA dehydrogenase type-2
  • EHHADH – Peroxisomal bifunctional enzyme
  • HSD17B4 – Peroxisomal multifunctional enzyme type 2
  • 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 (S)-3-hydroxyacyl-CoA:NAD+ oxidoreductase. Other names in common use include:

    Structural studies

    As of 20 January 2010, 22 structures have been solved for this class of enzymes, with PDB accession codes 1F0Y, 1F12, 1F14, 1F17, 1F67, 1GZ6, 1IKT, 1IL0, 1LSJ, 1LSO, 1M75, 1M76, 1S9C, 1WDK, 1WDL, 1WDM, 1ZBQ, 1ZCJ, 2D3T, 2HDH, 3HAD, and 3HDH.

    References

    3-hydroxyacyl-CoA dehydrogenase Wikipedia