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3-hydroxypropionate dehydrogenase (NADP+)

Class of enzymes

Class of enzymes

FieldValue
Name3-hydroxypropionate dehydrogenase (NADP+)
EC_number1.1.1.298

3-hydroxypropionate dehydrogenase (NADP+) () is an enzyme with systematic name 3-hydroxypropionate:NADP+ oxidoreductase. This enzyme catalyses the following chemical reaction:

This enzyme catalyses the reduction of malonate semialdehyde to 3-hydroxypropionate, which is a key step in the 3-hydroxypropionate and the 3-hydroxypropionate/4-hydroxybutyrate cycles, autotrophic CO2 fixation pathways found in some green non-sulfur phototrophic bacteria and archaea, respectively. The enzyme from Chloroflexus aurantiacus is bifunctional, and also catalyses the upstream reaction in the pathway, EC 1.2.1.75. Different from EC 1.1.1.59, 3-hydroxypropionate dehydrogenase (NAD+), by cofactor preference.

References

References

  1. (August 1993). "Enzymes of a novel autotrophic CO2 fixation pathway in the phototrophic bacterium Chloroflexus aurantiacus, the 3-hydroxypropionate cycle". European Journal of Biochemistry.
  2. (December 2007). "A 3-hydroxypropionate/4-hydroxybutyrate autotrophic carbon dioxide assimilation pathway in Archaea". Science.
  3. (May 2002). "Malonyl-coenzyme A reductase from Chloroflexus aurantiacus, a key enzyme of the 3-hydroxypropionate cycle for autotrophic CO(2) fixation". Journal of Bacteriology.
  4. {{KEGG enzyme. 1.1.1.298
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