title: Bacterial-type ferredoxin genes in the nitrogen fixation regions of the cyanobacterium Anabaena sp. strain PCC 7120 and Rhizobium meliloti.
abstract: The nucleotide sequence of a region located downstream of the nifB gene, both in the cyanobacterium Anabaena sp. strain PCC 7120 and in Rhizobium meliloti, has been determined. This region contains a gene (fdxN) whose predicted polypeptide product strongly resembles typical bacterial ferredoxins. Cyanobacteria have not previously been shown to contain bacterial-type ferredoxins. The presence of this gene suggests that nitrogen-fixing cyanobacteria have at least four distinct ferredoxins.
authors.affiliation: Department of Molecular Genetics and Cell Biology, University of Chicago, Illinois 60637.
authors.forename: M E
authors.initials: ME
authors.lastname: Mulligan
authors.forename: W J
authors.initials: WJ
authors.lastname: Buikema
authors.forename: R
authors.initials: R
authors.lastname: Haselkorn
mesh_terms: D000595:Amino Acid Sequence; D001483:Base Sequence; D000458:Cyanobacteria / Q000235:genetics*; D004247:DNA / Q000235:genetics; D004262:DNA Restriction Enzymes; D005288:Ferredoxins / Q000235:genetics*; D005796:Genes; D005798:Genes, Bacterial; D008969:Molecular Sequence Data; D009586:Nitrogen Fixation / Q000235:genetics; D012091:Repetitive Sequences, Nucleic Acid; D012231:Rhizobium / Q000235:genetics*
chemical_list: D005288:Ferredoxins; D004247:DNA; D004262:DNA Restriction Enzymes