Deletion of Autophagy gene ATG1 and Glyoxylate cycle Regulator encoding gene UCC1 together leads to Synthetic Growth Defects and Sensitivity to Genotoxic agents in Saccharomyces cerevisiae
Pandita, M.; Sharma, V.; Sharma, M.; Shoket, H.; Parvez, S.; Kumar, P.; Bairwa, N. K.
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Atg1 of S. cerevisiae is a key component of autophagy encoded by ATG1 gene, involved in the process of degradation of cytosolic components through autophagy. UCC1, an F-box encoding gene is involved in the negative regulation of glyoxylate pathway via degradation of Cit2 enzyme by ubiquitin proteasome system. We investigated the genetic interaction between ATG1 and UCC1 using the gene deletion approach. The atg1{Delta}ucc1{Delta} cells showed the synthetic growth defects with abnormal budding and sensitivity to genotoxic and oxidative stress agents. Based on the observations, we report that ATG1 and UCC1 interact genetically to regulate the cell growth fitness and function in parallel pathway in cellular response to the genotoxic stress agents. The present investigation also revealed the cross talks among autophagy, ubiquitin proteasome system, and glyoxylate pathways.
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