Nitrate reductase of Dunaliella parva: electron donor specificity and heat activation.
Arch Microbiol, 1975/4/07;103(2):181-3.
PMID: 239658
Impact factor: 2.667
Abstract
Nitrate reductase of the salt tolerant alga Dunaliella parva, in contrast to that of most green algae, can use NADPH as well as NADH as electron donor. Extracts of cells contained various amounts of latent nitrate reductase. The latent enzyme could be activated at 45 degrees C but only in the presence of flavine adenine dinucleotide. The heat activated enzyme did not require flavine adenine dinucleotide for activity and was fully active with NADH, NADPH or reduced flavine mononucleotide as electron donors.
MeSH terms
Chlorophyta; Electron Transport; Enzyme Activation; Flavin Mononucleotide; Flavin-Adenine Dinucleotide; Fluorides; Hot Temperature; NAD; NADP; Nitrate Reductases; Phosphates; Seawater
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