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Cinnamyl-alcohol dehydrogenase

In enzymology, a cinnamyl-alcohol dehydrogenase is an enzyme that catalyzes the chemical reaction

cinnamyl alcohol + NADP+ rightleftharpoons cinnamaldehyde + NADPH + H+

Thus, the two substrates of this enzyme are cinnamyl alcohol and NADP+, whereas its 3 products are cinnamaldehyde, NADPH, and H+.

This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-OH group of donor with NAD+ or NADP+ as acceptor. The systematic name of this enzyme class is cinnamyl-alcohol:NADP+ oxidoreductase. Other names in common use include cinnamyl alcohol dehydrogenase, and CAD. This enzyme participates in phenylpropanoid biosynthesis.

Structural studies

As of late 2007, 4 structures have been solved for this class of enzymes, with PDB accession codes , , , and .


  • Sarni F, Grand C, Boudet AM "Purification and properties of cinnamoyl-CoA reductase and cinnamyl alcohol dehydrogenase from poplar stems (Populus X euramericana)". Eur. J. Biochem. 139 259–65.
  • Wyrambik D, Grisebach H "Purification and properties of isoenzymes of cinnamyl-alcohol dehydrogenase from soybean-cell-suspension cultures". Eur. J. Biochem. 59 9–15.
  • Wyrambik D, Grisebach H "Enzymic synthesis of lignin precursors. Further studies on cinnamyl-alcohol dehydrogenase from soybean-cell-suspension cultures". Eur. J. Biochem. 97 503–9.

External links

The CAS registry number for this enzyme class is .

Gene Ontology (GO) codes

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