title: A region of a Sym plasmid of Rhizobium leguminosarum biovar phaseoli has similarity to prokaryotic insertion sequences and to eukaryotic integrases.
abstract: Near the nod and nif genes of the Sym plasmid pRP2JI of Rhizobium leguminosarum biovar phaseoli are three open reading frames whose deduced polypeptide products have similarities to those of genes in bacterial insertion sequences. The similarity of one of these ORFs was significantly greater to that of the integrase region of pol proteins of eukaryotic retroviruses and transposable elements in animals and plants than it was to the transposases of prokaryotic insertion sequences. In the noncoding region of the IS-like element, there was a sequence similar to that which had been identified close to nod genes in Azorhizobium caulinodans.
authors.affiliation: School of Biological Sciences, University of East Anglia, Norwich, United Kingdom.
authors.forename: K H
authors.initials: KH
authors.lastname: Yeoman
authors.forename: G F
authors.initials: GF
authors.lastname: Hong
authors.forename: M L
authors.initials: ML
authors.lastname: Mimmack
authors.forename: A W
authors.initials: AW
authors.lastname: Johnston
mesh_terms: D000595:Amino Acid Sequence; D001426:Bacterial Proteins / Q000235:genetics; D001483:Base Sequence; D004254:DNA Nucleotidyltransferases / Q000235:genetics*; D004251:DNA Transposable Elements / Q000235:genetics*; D004269:DNA, Bacterial; D029968:Escherichia coli Proteins; D019426:Integrases; D008969:Molecular Sequence Data; D009693:Nucleic Acid Hybridization; D016366:Open Reading Frames / Q000235:genetics; D010957:Plasmids; D016961:Rhizobium leguminosarum / Q000235:genetics*; D017386:Sequence Homology, Amino Acid
chemical_list: D001426:Bacterial Proteins; D004251:DNA Transposable Elements; D004269:DNA, Bacterial; D029968:Escherichia coli Proteins; C085896:OrfB protein, E coli; D004254:DNA Nucleotidyltransferases; D019426:Integrases