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. 1974 Apr;53(4):628–631. doi: 10.1104/pp.53.4.628

Isolation, Characterization, and Partial Purification of a Reduced Nicotinamide Adenine Dinucleotide Phosphate-dependent Dihydroxyacetone Reductase from the Halophilic Alga Dunaliella parva

Ami Ben-Amotz 1, Mordhay Avron 1
PMCID: PMC541408  PMID: 16658754

Abstract

An NADP+-dependent dihydroxyacetone reductase, which catalyzes specifically the reduction of dihydroxyacetone to glycerol, has been isolated from the halophilic alga Dunaliella parva. The enzyme has been purified about 220-fold. It has a molecular weight of about 65,000 and is highly specific for NADPH. The pH optima for dihydroxyacetone reduction and for glycerol oxidation are 7.5 and 9.2, respectively. The enzyme has a very narrow substrate specificity and will not catalyze the reduction of glyceraldehyde or dihydroxyacetone phosphate. It is suggested that this enzyme functions physiologically as a dihydroxyacetone reductase in the path of glycerol synthesis and accumulation in Dunaliella.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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