Role of glucose repression in the oxidative stress response ofSchizosaccharomyces pombe: analysis of transcript levels of fbp1, hxk2, sod1and ctt1 genes in sty1, atf1 and pap1 knock-out mutants

Turkish Journal of Biology

BEDİA PALABIYIK¹ 

关键词: Oxidative stress response;    glucose repression;    Atf1;    Pap1;    Sty1;    knock-out deletion;    Schizosacharomyces pombe;   

学科分类：生物科学（综合）

来源: Scientific and Technical Research Council of Turkey - TUBITAK

【 摘 要 】

Previously we reported that the glucose sensing/signaling pathway affected the oxidative stress response of Schizosaccharomyces pombe, based on studies of glucose-repression and oxidative-stress-resistant mutants including ird5. sty1, encoding a protein kinase, and aft1 and pap1, encoding transcription factors, are important components of the oxidative stress response in S. Pombe. To analyze the relationship between the glucose sensing/signaling pathway and the oxidative stress response, we generated sty1, aft1, and pap1 knock-out mutants in ird5 and wild-type backgrounds. We evaluated the survival rates of the ird5 double mutants (5A, 5P, and 5S) and wild-type single mutants (9A, 9P, and 9S) under mild oxidative stress. In addition, we analyzed the transcript levels of genes related to oxidative stress (sod1, encoding superoxide dismutase; ctt1, encoding catalase) and glucose metabolism (fbp1, encoding fructose-1, 6-bisphosphatase; hxk2, encoding hexokinase). All deletion mutants showed very low survival rates under oxidative stress (

【 授权许可】

Unknown