Journal
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
Volume 361, Issue 4, Pages 1054-1060Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.bbrc.2007.07.134
Keywords
DNA repair; BER genes; sugarcane; complementation assays; plant genomes
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Plant genomic projects, such as Arabidopsis thaliana, rice, and maize, have provided excellent tools for comparative genome analysis on Base Excision DNA Repair (BER). A data-mining study associated with the SUCEST Genome project identified two EST clusters that shared homology to the bacteria MutM/Fpg protein. Comparative analyses presented here show a duplication of the MutM/Fpg gene in sugarcane, wheat and rice. The complementation assays show that both cDNAs from sugarcane are able to complement the Fpg and MutY-glycosylase deficiency in a double mutant Escheriehia coli strain (CC104mutMmutY), reducing the spontaneous mutation frequency by 10-fold. The expression analyses by semi-quantitative RT-PCR show that these two mRNAs have different expression levels. (C) 2007 Elsevier Inc. All rights reserved.
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