Regulation of Initiation of Bacillus subtilis Chromosome Replication
Identifieur interne : 001158 ( Istex/Checkpoint ); précédent : 001157; suivant : 001159Regulation of Initiation of Bacillus subtilis Chromosome Replication
Auteurs : Shigeki Moriya [Japon] ; Yukiho Imai [Japon] ; Anwarul K. M. Hassan [Japon] ; Naotake Ogasawara [Japon]Source :
- Plasmid [ 0147-619X ] ; 1999.
English descriptors
- Teeft :
- Autonomous replication, Bacillus, Bacillus subtilis, Bacillus subtilis chromosome, Bacterial chromosome replication, Bacterial replication origins, Bacteriol, Bipolar localization, Bruand, Caulobacter crescentus, Cell cycle, Cell division, Cell division cycle, Cell membrane, Cell pole, Cell poles, Chattoraj, Chromosomal, Chromosomal replication, Chromosome, Chromosome partition, Chromosome replication, Coli, Coli chromosome, Consensus sequence, Dnaa, Dnaa boxes, Dnaa gene, Dnaa molecules, Dnaa mrna, Dnaa protein, Dnab, Dnab helicase, Dnac, Dnac helicase, Dnai, Early stage, Embo, Equal amount, Escherichia, Escherichia coli, Growth rate, Helicase, Incompatibility, Initiation, Initiation mass, Initiation stage, Initiator, Initiator binding sites, Localized, Loop formation, Messer, Microbiol, Moriya, Mutant, Nonpermissive temperature, Ogasawara, Oric, Oric plasmid, Oric plasmids, Oric region, Other bacteria, Plasmid, Plasmid replication, Previous section, Promoter, Promoter region, Regulation mechanism, Replication, Replication origin, Replication origins, Subtilis, Subtilis cells, Subtilis chromosome replication, Subtilis dnaa gene, Subtilis oric, Yoshikawa.
Abstract
Abstract: Bacterial chromosome replication is tightly regulated at the initiation stage to coordinate with mass increase. Together with chromosome partition at cell division, this regulation mechanism ensures the proper number of chromosomes in daughter cells at any growth rate. Therefore, elucidation of this regulation mechanism is important for understanding the bacterial cell cycle. Despite much effort inEscherichia coliandBacillus subtilisfor many years, the mechanism remains to be completely elucidated. InE. coli,it is proposed that a critical amount of DnaA protein determines the time of initiation of replication in the cell cycle. Our study strongly suggested that this might not be the case inB. subtilis.Recently, remarkable progress has been made in bacterial cytology. The new techniques enable us to examine the subcellular location of proteins of interest and DNA regions of the chromosome (for example, the replication origin) and, therefore, to determine directly when in the cell division cycle and where within the cell initiation of chromosome replication takes place. Using the techniques, we detected the initiation complex by examining subcellular location of several Dna-initiation proteins inB. subtilis.Based on our new findings, we propose a novel model for regulation of the time of initiation of chromosome replication in the cell cycle.
Url:
DOI: 10.1006/plas.1998.1381
Affiliations:
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Together with chromosome partition at cell division, this regulation mechanism ensures the proper number of chromosomes in daughter cells at any growth rate. Therefore, elucidation of this regulation mechanism is important for understanding the bacterial cell cycle. Despite much effort inEscherichia coliandBacillus subtilisfor many years, the mechanism remains to be completely elucidated. InE. coli,it is proposed that a critical amount of DnaA protein determines the time of initiation of replication in the cell cycle. Our study strongly suggested that this might not be the case inB. subtilis.Recently, remarkable progress has been made in bacterial cytology. The new techniques enable us to examine the subcellular location of proteins of interest and DNA regions of the chromosome (for example, the replication origin) and, therefore, to determine directly when in the cell division cycle and where within the cell initiation of chromosome replication takes place. Using the techniques, we detected the initiation complex by examining subcellular location of several Dna-initiation proteins inB. subtilis.Based on our new findings, we propose a novel model for regulation of the time of initiation of chromosome replication in the cell cycle.</div></front></TEI><affiliations><list><country><li>Japon</li></country></list><tree><country name="Japon"><noRegion><name sortKey="Moriya, Shigeki" sort="Moriya, Shigeki" uniqKey="Moriya S" first="Shigeki" last="Moriya">Shigeki Moriya</name></noRegion><name sortKey="Hassan, Anwarul K M" sort="Hassan, Anwarul K M" uniqKey="Hassan A" first="Anwarul K. M." last="Hassan">Anwarul K. M. Hassan</name><name sortKey="Imai, Yukiho" sort="Imai, Yukiho" uniqKey="Imai Y" first="Yukiho" last="Imai">Yukiho Imai</name><name sortKey="Ogasawara, Naotake" sort="Ogasawara, Naotake" uniqKey="Ogasawara N" first="Naotake" last="Ogasawara">Naotake Ogasawara</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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