Title |
On the molecular mechanism of GC content variation among eubacterial genomes
|
---|---|
Published in |
Biology Direct, January 2012
|
DOI | 10.1186/1745-6150-7-2 |
Pubmed ID | |
Authors |
Hao Wu, Zhang Zhang, Songnian Hu, Jun Yu |
Abstract |
As a key parameter of genome sequence variation, the GC content of bacterial genomes has been investigated for over half a century, and many hypotheses have been put forward to explain this GC content variation and its relationship to other fundamental processes. Previously, we classified eubacteria into dnaE-based groups (the dimeric combination of DNA polymerase III alpha subunits), according to a hypothesis where GC content variation is essentially governed by genome replication and DNA repair mechanisms. Further investigation led to the discovery that two major mutator genes, polC and dnaE2, may be responsible for genomic GC content variation. Consequently, an in-depth analysis was conducted to evaluate various potential intrinsic and extrinsic factors in association with GC content variation among eubacterial genomes. |
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Mendeley readers
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