title: Nucleotide sequence of a Proteus mirabilis DNA fragment homologous to the 60K-rnpA-rpmH-dnaA-dnaN-recF-gyrB region of Escherichia coli.
abstract: A 6.5-kb DNA fragment from Proteus mirabilis hybridized to the Escherichia coli dnaA gene. This DNA fragment was cloned and the nucleotide (nt) sequence determined. The fragment is homologous to a region of the E. coli chromosome containing a part of the gene encoding a 60-kDa membrane-associated protein (60K), the rnpA-rpmH-dnaA-dnaN-recF genes, and the N-terminal part of the gyrB gene. The degree of homology is variable: the amino-acid (aa) sequence of a part of the 60K protein and a part of the DnaA protein is only minimally conserved, whereas the C-terminal 148 aa of DnaA are identical in the two species. The conservation of the nt sequence between the rnpA gene and the gene encoding the 60K protein suggests that this region encodes a hitherto unrecognized protein. The ORF for this protein partially overlaps the 3' end of the rnpA structural gene, and the degree of conservation suggests that this gene is important for these bacteria.
authors.affiliation: Institute of Life Sciences and Chemistry, Roskilde University Centre, Denmark.
authors.forename: O
authors.initials: O
authors.lastname: Skovgaard
mesh_terms: D000595:Amino Acid Sequence; D001426:Bacterial Proteins / Q000235:genetics*; D001483:Base Sequence; D003001:Cloning, Molecular; D004250:DNA Topoisomerases, Type II / Q000235:genetics; D004269:DNA, Bacterial / Q000235:genetics*; D004268:DNA-Binding Proteins / Q000235:genetics*; D004259:DNA-Directed DNA Polymerase / Q000235:genetics; D004722:Endoribonucleases / Q000235:genetics; D029968:Escherichia coli Proteins; D005798:Genes, Bacterial; D008565:Membrane Proteins / Q000235:genetics; D008969:Molecular Sequence Data; D008970:Molecular Weight; D011513:Proteus mirabilis / Q000235:genetics*; D015183:Restriction Mapping; D043262:Ribonuclease P; D012269:Ribosomal Proteins / Q000235:genetics
chemical_list: D001426:Bacterial Proteins; D004269:DNA, Bacterial; D004268:DNA-Binding Proteins; D029968:Escherichia coli Proteins; D008565:Membrane Proteins; D012269:Ribosomal Proteins; C041672:ribosomal protein L34; D004259:DNA-Directed DNA Polymerase; D004722:Endoribonucleases; D043262:Ribonuclease P; C470865:ribonuclease P, E coli; D004250:DNA Topoisomerases, Type II