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Role of Ppt1 in multiple stress responses in Candida albicans 被引量:1
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作者 kangdi hu Wanjie Li +4 位作者 Jiaxin Gao Qizheng Liu Haitao Wang Yue Wang Jianli Sang 《Chinese Science Bulletin》 SCIE EI CAS 2014年第31期4060-4068,共9页
To study the function of CaPpt1,we deleted PPT1 gene from the Candida albicans genome by sequentially replacing the entire coding region with the selectable markers ARG4 and HIS1.The results showed that the deletion o... To study the function of CaPpt1,we deleted PPT1 gene from the Candida albicans genome by sequentially replacing the entire coding region with the selectable markers ARG4 and HIS1.The results showed that the deletion of Ppt1 did not affect the hyphal formation of C.albicans under serum induction and caused enhanced sensitivity to DNA damage,Calcofluor white and saltinduced stress.We also found that Ppt1 was not required for the phenotypic response of cells treated with the genotoxins,methylmethane sulfonate and hydroxyurea.Flow cytometric analyses indicated that ppt1D cells and wild-type cells showed similar G2/M arrest profiles when exposed to DNA damage stress.Ppt1 was not required for the activation of the DNA damage response pathway,as indicated by normal phosphorylation of Rad53 and Rfa2 in ppt1D cells under DNA damage stress.We suggest that Ppt1 plays important roles in response to various stress conditions in C.albicans. 展开更多
关键词 白色念珠菌 应激反应 流式细胞分析 DNA损伤 选择性标记 基因组 胁迫条件 编码区
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