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首页> 外文期刊>The Journal of Antibiotics: An International Journal >Serine catabolism produces ROS, sensitizes cells to actin dysfunction, and suppresses cell growth in fission yeast
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Serine catabolism produces ROS, sensitizes cells to actin dysfunction, and suppresses cell growth in fission yeast

机译:丝氨酸分解代谢产生ROS,使细胞敏感到肌动蛋白功能障碍,并抑制裂变酵母的细胞生长

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摘要

Serine is an essential component in organisms as a building block of biomolecules, a precursor of metabolites, an allosteric regulator of an enzyme, etc. This amino acid is thought to be a key metabolite in human diseases including cancers and infectious diseases. To understand the consequence of serine catabolism, we screened natural products to identify a fungal metabolite chaetoglobosin D (ChD) as a specific inhibitor of fission yeast cell growth when cultivated with serine as a sole nitrogen source. ChD targets actin, and actin mutant cells showed severe growth defect on serine medium. ROS accumulated in cells when cultivated in serine medium, while actin mutant cells showed increased sensitivity to oxidative stress. ROS production is a new aspect of serine metabolism, which might be involved in disease progression, and actin could be the drug target for curing serine-dependent symptoms.
机译:丝氨酸是生物体中作为生物分子的构建块,代谢物的前体,酶的颠覆调节剂等。这种氨基酸被认为是人类疾病的关键代谢物,包括癌症和传染病。 为了了解丝氨酸分解代谢的结果,我们筛选天然产物,以鉴定用丝氨酸作为唯一氮源培养时作为裂变酵母细胞生长的特异性抑制剂的真菌代谢物Chaetoglobosin D(CHD)。 CHD靶向肌动蛋白,肌动蛋白突变细胞显示出丝氨酸培养基的严重生长缺陷。 在丝氨酸培养基中培养时在细胞中累积的ROS,而肌动蛋白突变体细胞对氧化应激的敏感性增加。 ROS生产是丝氨酸代谢的新方面,这可能参与疾病进展,并且肌动蛋白可以是用于治愈丝氨酸依赖性症状的药物靶标。

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