title: [Determination and comparative analysis of the nucleotide sequence for minireplicon fragments of the cryptic plasmid p1414 from the soil strain of Bacillus subtilis].
abstract: Nucleotide sequences of two minireplicon fragments of the p1414 cryptic plasmid of Bacillus subtilis were determined. The fragments corresponded to the region containing ori(+) and the gene coding for Rep protein. Comparing sequences of the fragments with corresponding sequences of other ss+ plasmids suggested that ori(+) of p1414 belongs to the family of endogenous cryptic B. subtilis plasmids, which form an individual, closely related subgroup in the group of ori(+) sequences of the pC194 type. It was found that the amino acid sequence of a conservative FLTLTV motif located, together with its flanking sequences, at the N ends of Rep proteins encoded by different ss+ plasmids, is similar to those of several transmembrane proteins and signal peptides. These results, together with computer data on predicting the secondary and tertiary structure of the N-terminal domain of the p1414 Rep protein, suggest that the domain can serve as a "membrane anchor" during plasmid replication.
mesh_terms: D000595:Amino Acid Sequence; D001412:Bacillus subtilis / Q000235:genetics*; D001426:Bacterial Proteins / Q000235:genetics; D001483:Base Sequence; D003001:Cloning, Molecular; D004265:DNA Helicases; D004269:DNA, Bacterial; D004268:DNA-Binding Proteins; D016208:Databases, Factual; D008969:Molecular Sequence Data; D010448:Peptide Initiation Factors / Q000235:genetics; D010957:Plasmids; D018741:Replication Origin; D012093:Replicon / Q000235:genetics*; D017386:Sequence Homology, Amino Acid; D012689:Sequence Homology, Nucleic Acid; D012988:Soil Microbiology; D015534:Trans-Activators / Q000235:genetics
chemical_list: D001426:Bacterial Proteins; D004269:DNA, Bacterial; D004268:DNA-Binding Proteins; D010448:Peptide Initiation Factors; D015534:Trans-Activators; C045264:replication initiator protein; D004265:DNA Helicases
vernacular_title: Opredelenie i sravnitel'nyĭ analiz nukleotidnoĭ posledovatel'nosti fragmentov minireplikona kripticheskoĭ plazmidy p1414 iz pochvennogo shtamma Bacillus subtilis.