| Literature DB >> 15231812 |
Wojciech Kuban1, Piotr Jonczyk, Damian Gawel, Karolina Malanowska, Roel M Schaaper, Iwona J Fijalkowska.
Abstract
We have investigated whether DNA polymerase IV (Pol IV; the dinB gene product) contributes to the error rate of chromosomal DNA replication in Escherichia coli. We compared mutation frequencies in mismatch repair-defective strains that were either dinB positive or dinB deficient, using a series of mutational markers, including lac targets in both orientations on the chromosome. Virtually no contribution of Pol IV to the chromosomal mutation rate was observed. On the other hand, a significant effect of dinB was observed for reversion of a lac allele when the lac gene resided on an F'(pro-lac) episome. Copyright 2004 American Society for MicrobiologyEntities:
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Year: 2004 PMID: 15231812 PMCID: PMC438567 DOI: 10.1128/JB.186.14.4802-4807.2004
Source DB: PubMed Journal: J Bacteriol ISSN: 0021-9193 Impact factor: 3.490