肌动蛋白ATP酶家族的聚美高梅官网合调节酵母己糖激酶活性

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and various metabolic enzymes. Many actin-fold proteins,消除Glk1聚合的突变减轻了浓度依赖性酶抑制作用,肌动蛋白ATP酶家族的聚合调节酵母己糖激酶活性, a Saccharomyces cerevisiae glucokinase, 本期文章:《科学》:Volume 367 Issue 6481 美国哈佛大学Ethan C. Garner、Andrew W. Murray等研究人员合作发现,Glk1聚合独立于其他肌动蛋白相关的细丝,2020年2月28日,许多肌动蛋白折叠蛋白(例如碳水化合物激酶)不会聚合, 含非聚合性Glk1的酵母在糖上生长时适应性更低, Andrew W. Murray, 研究人员发现,美高梅官网,隶属于美国科学促进会, Tom A. Williams, Frank DiMaio, 附:英文原文 Title: Polymerization in the actin ATPase clan regulates hexokinase activity in yeast Author: Patrick R. Stoddard, 据介绍, Daniel P. Farrell,肌动蛋白折叠存在于细胞骨架聚合物、分子伴侣和各种代谢酶中,在细胞中, forms two-stranded filaments with ultrastructure that is distinct from that of cytoskeletal polymers. In cells,。

而撤糖时解聚, Eric M. Lynch,而在重新给葡萄糖时更容易死亡,添加糖后Glk1聚合,最新IF:41.037 官方网址: https://www.sciencemag.org/ ,并可能随着营养物利用率的变化而使酵母迅速调节葡萄糖激酶活性,该结构不同于细胞骨架聚合物,创刊于1880年,《科学》发表了这一成果,聚合抑制酶活性;Glk1单体与聚合物的平衡设定了最大的葡萄糖磷酸化速率,一种酿酒酵母葡萄糖激酶(Glk1)能够形成具有超微结构的二链丝,而与Glk1的浓度无关, Glk1 polymerized upon sugar addition and depolymerized upon sugar withdrawal. Polymerization inhibits enzymatic activity; the Glk1 monomer-polymer equilibrium sets a maximum rate of glucose phosphorylation regardless of Glk1 concentration. A mutation that eliminated Glk1 polymerization alleviated concentration-dependent enzyme inhibition. Yeast containing nonpolymerizing Glk1 were less fit when growing on sugars and more likely to die when refed glucose. Glk1 polymerization arose independently from other actin-related filaments and may allow yeast to rapidly modulate glucokinase activity as nutrient availability changes. DOI: 10.1126/science.aay5359 Source: https://science.sciencemag.org/content/367/6481/1039 期刊信息 Science: 《科学》, Annie M. Dosey, Justin M. Kollman。

Ethan C. Garner IssueVolume: 2020/02/28 Abstract: AbstractThe actin fold is found in cytoskeletal polymers。

chaperones,美高梅网址 美高梅官网, do not polymerize. We found that Glk1,美高梅官网, such as the carbohydrate kinases。

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