3alpha,7alpha-dihydroxy-5beta-cholestanate-CoA ligase

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In enzymology, a 3alpha,7alpha-dihydroxy-5beta-cholestanate-CoA ligase (EC 6.2.1.28) is an enzyme that catalyzes the chemical reaction

ATP + (25R)-3alpha,7alpha-dihydroxy-5beta-cholestan-26-oate + CoA $\rightleftharpoons$ AMP + diphosphate + (25R)-3alpha,7alpha-dihydroxy-5beta-cholestanoyl-CoA

The 3 substrates of this enzyme are ATP, (25R)-3alpha,7alpha-dihydroxy-5beta-cholestan-26-oate, and CoA, whereas its 3 products are AMP, diphosphate, and (25R)-3alpha,7alpha-dihydroxy-5beta-cholestanoyl-CoA.

This enzyme belongs to the family of ligases, specifically those forming carbon-sulfur bonds as acid-thiol ligases. The systematic name of this enzyme class is (25R)-3alpha,7alpha-dihydroxy-5beta-cholestan-26-oate:CoA ligase (AMP-forming). Other names in common use include 3alpha,7alpha-dihydroxy-5beta-cholestanoyl coenzyme A synthetase, DHCA-CoA ligase, and 3alpha,7alpha-dihydroxy-5beta-cholestanate:CoA ligase (AMP-forming). This enzyme participates in bile acid biosynthesis.

[edit] References

IUBMB entry for 6.2.1.28
BRENDA references for 6.2.1.28 (Recommended.)
PubMed references for 6.2.1.28
PubMed Central references for 6.2.1.28
Google Scholar references for 6.2.1.28
Prydz K, Kase BF, Bjorkhem I, Pedersen JI (1988). "Subcellular localization of 3 alpha, 7 alpha-dihydroxy- and 3 alpha,7 alpha,12 alpha-trihydroxy-5 beta-cholestanoyl-coenzyme A ligase(s) in rat liver". J. Lipid. Res. 29: 997–1004. PMID 3183523.