Physical mapping of the conjugative bacteriocin plasmid pPD1 of Enterococcus faecalis and identification of the determinant related to the pheromone response. 1995

S Fujimoto, and H Tomita, and E Wakamatsu, and K Tanimoto, and Y Ike
Department of Microbiology, Gunma University School of Medicine, Japan.

The pheromone-responding conjugative bacteriocin plasmid pPD1 (59 kb) of Enterococcus faecalis was mapped physically by using a relational clone approach, and transposon analysis with Tn917 (Emr) or Tn916 (Tcr) facilitated the location of the bacteriocin-related genes in a segment of about 6.7 kb. Tn917 insertions within a 3-kb region resulted in constitutive clumping. The nucleotide sequence of the region that included the insertions giving rise to constitutive clumping was determined. The region of pPD1 spanned about 8 kb and was found to contain a number of open reading frames, some of which were named on the basis of homologies with two other pheromone-responding plasmids, pAD1 and pCF10. The genes were arranged in the sequence repB-repA-traC-traB-traA-ipd-traE-traF- orfY-sea-1 with all but repB and traA oriented in the same (left-to-right) direction. traC and traB corresponded, respectively, to traC and traB of pAD1 and to prgY and prgZ of pCF10.

UI MeSH Term Description Entries
D008969 Molecular Sequence Data Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories. Sequence Data, Molecular,Molecular Sequencing Data,Data, Molecular Sequence,Data, Molecular Sequencing,Sequencing Data, Molecular
D009842 Oligopeptides Peptides composed of between two and twelve amino acids. Oligopeptide
D010675 Pheromones Chemical substances, excreted by an organism into the environment, that elicit behavioral or physiological responses from other organisms of the same species. Perception of these chemical signals may be olfactory or by contact. Allelochemical,Allelochemicals,Allomone,Allomones,Ectohormones,Kairomone,Kairomones,Pheromone,Semiochemical,Semiochemicals,Synomones
D010957 Plasmids Extrachromosomal, usually CIRCULAR DNA molecules that are self-replicating and transferable from one organism to another. They are found in a variety of bacterial, archaeal, fungal, algal, and plant species. They are used in GENETIC ENGINEERING as CLONING VECTORS. Episomes,Episome,Plasmid
D003001 Cloning, Molecular The insertion of recombinant DNA molecules from prokaryotic and/or eukaryotic sources into a replicating vehicle, such as a plasmid or virus vector, and the introduction of the resultant hybrid molecules into recipient cells without altering the viability of those cells. Molecular Cloning
D003227 Conjugation, Genetic A parasexual process in BACTERIA; ALGAE; FUNGI; and ciliate EUKARYOTA for achieving exchange of chromosome material during fusion of two cells. In bacteria, this is a uni-directional transfer of genetic material; in protozoa it is a bi-directional exchange. In algae and fungi, it is a form of sexual reproduction, with the union of male and female gametes. Bacterial Conjugation,Conjugation, Bacterial,Genetic Conjugation
D005798 Genes, Bacterial The functional hereditary units of BACTERIA. Bacterial Gene,Bacterial Genes,Gene, Bacterial
D005809 Genes, Regulator Genes which regulate or circumscribe the activity of other genes; specifically, genes which code for PROTEINS or RNAs which have GENE EXPRESSION REGULATION functions. Gene, Regulator,Regulator Gene,Regulator Genes,Regulatory Genes,Gene, Regulatory,Genes, Regulatory,Regulatory Gene
D000595 Amino Acid Sequence The order of amino acids as they occur in a polypeptide chain. This is referred to as the primary structure of proteins. It is of fundamental importance in determining PROTEIN CONFORMATION. Protein Structure, Primary,Amino Acid Sequences,Sequence, Amino Acid,Sequences, Amino Acid,Primary Protein Structure,Primary Protein Structures,Protein Structures, Primary,Structure, Primary Protein,Structures, Primary Protein
D001430 Bacteriocins Substances elaborated by specific strains of bacteria that are lethal against other strains of the same or related species. They are protein or lipopolysaccharide-protein complexes used in taxonomy studies of bacteria. Bacteriocin,Lantibiotic,Lantibiotics

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