title: Nucleotide sequence of the nar beta gene encoding assimilatory nitrate reductase from the cyanobacterium Oscillatoria chalybea.
abstract: The nucleotide sequence of the structural gene of nitrate reductase (n ar beta) has been determined from the filamentous, non-heterocystous cyanobacterium Oscillatoria chalybea. The nar beta gene encodes a protein of 737 amino acid residues, which shows 61% identity to nitrate reductase of the unicellular cyanobacterium Synechococcus sp. PCC 7942 and only weak homologies to different bacterial molybdoenzymes, such as nitrate reductases or formate dehydrogenases.
authors.affiliation: Biologie VIII: Zellphsiologie, Universitat Bielefeld, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Unthan
authors.forename: W
authors.initials: W
authors.lastname: Klipp
authors.forename: G H
authors.initials: GH
authors.lastname: Schmid
mesh_terms: D000421:Alcaligenes / Q000201:enzymology / Q000235:genetics; D001483:Base Sequence; D000458:Cyanobacteria / Q000201:enzymology* / Q000235:genetics*; D004269:DNA, Bacterial / Q000235:genetics; D004926:Escherichia coli / Q000201:enzymology / Q000235:genetics; D005560:Formate Dehydrogenases / Q000235:genetics; D005798:Genes, Bacterial; D007711:Klebsiella pneumoniae / Q000201:enzymology / Q000235:genetics; D008969:Molecular Sequence Data; D050901:Nitrate Reductase; D009565:Nitrate Reductases / Q000235:genetics*; D016366:Open Reading Frames; D017386:Sequence Homology, Amino Acid
chemical_list: D004269:DNA, Bacterial; D005560:Formate Dehydrogenases; D009565:Nitrate Reductases; D050901:Nitrate Reductase