PMID:12106913: Difference between revisions
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!align=left |Citation | |||
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'''Norris, V, Demarty, M, Raine, D, Cabin-Flaman, A and Le Sceller, L''' (2002) Hypothesis: hyperstructures regulate initiation in Escherichia coli and other bacteria. ''Biochimie'' '''84''':341-7 | |||
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!align=left |Abstract | |||
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Hyperstructures or modules have been proposed to constitute a level of organisation intermediate between macromolecules and whole cells. In this model of intracellular organisation, hyperstructures compete and collaborate for existence within the membrane and cytoplasm. Those directly involved in the cell cycle include initiation, replication and division hyperstructures based on DnaA, SeqA and the 2-minute cluster, respectively. During the run-up to initiation, the mass to DNA ratio increases and, we contend, differential gene expression leads to some hyperstructures becoming more active and stable than others. This results in a drop in the diversity of hyperstructures, some of which release DnaA as they dissociate, and a DnaA-initiation hyperstructure forms. Subsequent DNA replication and cell division generate different daughter cells containing different hyperstructures. This has the advantage of increasing the phenotypic diversity of the population. In developing this model, we also invoke hyperstructures in the partitioning of origins of replication. | |||
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[http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=12106913 PubMed] | |||
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| | !align=left |Keywords | ||
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|- | Bacterial Proteins/genetics; Bacterial Proteins/metabolism; Bacterial Proteins/physiology; Binding Sites; Cell Cycle/physiology; Computational Biology; DNA Replication/physiology; DNA-Binding Proteins/genetics; DNA-Binding Proteins/metabolism; DNA-Binding Proteins/physiology; Escherichia coli/cytology; Escherichia coli/genetics; Escherichia coli/metabolism; Escherichia coli/physiology; Gene Expression Regulation; Genes, Bacterial | ||
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==Significance {{HelpIcon|Help:Literature}} == | ==Significance {{HelpIcon|Help:Literature}} == | ||
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==EcoliWiki Links {{HelpIcon|Help:Literature}} == | ==EcoliWiki Links {{HelpIcon|Help:Literature}} == | ||
Latest revision as of 04:17, 15 September 2013
| Citation |
Norris, V, Demarty, M, Raine, D, Cabin-Flaman, A and Le Sceller, L (2002) Hypothesis: hyperstructures regulate initiation in Escherichia coli and other bacteria. Biochimie 84:341-7 |
|---|---|
| Abstract |
Hyperstructures or modules have been proposed to constitute a level of organisation intermediate between macromolecules and whole cells. In this model of intracellular organisation, hyperstructures compete and collaborate for existence within the membrane and cytoplasm. Those directly involved in the cell cycle include initiation, replication and division hyperstructures based on DnaA, SeqA and the 2-minute cluster, respectively. During the run-up to initiation, the mass to DNA ratio increases and, we contend, differential gene expression leads to some hyperstructures becoming more active and stable than others. This results in a drop in the diversity of hyperstructures, some of which release DnaA as they dissociate, and a DnaA-initiation hyperstructure forms. Subsequent DNA replication and cell division generate different daughter cells containing different hyperstructures. This has the advantage of increasing the phenotypic diversity of the population. In developing this model, we also invoke hyperstructures in the partitioning of origins of replication. |
| Links | |
| Keywords |
Bacterial Proteins/genetics; Bacterial Proteins/metabolism; Bacterial Proteins/physiology; Binding Sites; Cell Cycle/physiology; Computational Biology; DNA Replication/physiology; DNA-Binding Proteins/genetics; DNA-Binding Proteins/metabolism; DNA-Binding Proteins/physiology; Escherichia coli/cytology; Escherichia coli/genetics; Escherichia coli/metabolism; Escherichia coli/physiology; Gene Expression Regulation; Genes, Bacterial |
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