Reaction: 3-hydroxypropanoyl-CoA = acryloyl-CoA + H2O
For diagram of reaction click here (another example and another example.
Glossary: acryloyl-CoA = acrylyl-CoA
3-hydroxypropanoyl-CoA = 3-hydroxypropionyl-CoA
Other name(s): 3-hydroxypropionyl-CoA hydro-lyase; 3-hydroxypropanoyl-CoA dehydratase
Systematic name: 3-hydroxypropanoyl-CoA hydro-lyase
Comments: Catalyses a step in the 3-hydroxypropanoate/4-hydroxybutanoate cycle, an autotrophic CO2 fixation pathway found in some thermoacidophilic archaea [1]. The enzyme from Metallosphaera sedula acts nearly equally as well on (S)-3-hydroxybutanoyl-CoA but not (R)-3-hydroxybutanoyl-CoA [2].
Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, PDB, CAS registry number:
References:
1. Berg, I.A., Kockelkorn, D., Buckel, W. and Fuchs, G. A 3-hydroxypropionate/4-hydroxybutyrate autotrophic carbon dioxide assimilation pathway in Archaea. Science 318 (2007) 1782-1786. [PMID: 18079405]
2. Teufel, R., Kung, J.W., Kockelkorn, D., Alber, B.E. and Fuchs, G. 3-hydroxypropionyl-coenzyme A dehydratase and acryloyl-coenzyme A reductase, enzymes of the autotrophic 3-hydroxypropionate/4-hydroxybutyrate cycle in the Sulfolobales. J. Bacteriol. 191 (2009) 4572-4581. [PMID: 19429610]