
Nature带你走进自噬关键调控蛋白复合物-Beclin 1 - 搜狐
2019年8月21日 · 加州大学的研究人员在新研究中揭示了一个调控细胞自噬的关键分子机制,他们发现一种称作ULK1的激酶通过磷酸化Beclin-1,激活脂酶VPS34,诱导了细胞自噬发生. 这篇文章中研究人员证实,当氨基酸缺乏或mTOR抑制时,激活的ULK1会磷酸化Beclin-1的Ser 14位点,由此提高VPS34复合体活性。 通过ULK导致Beclin-1 Ser 14位点磷酸化是哺乳动物充分诱导自噬的必要条件. beclin1有一个BH3结构域,bcl2等可以通过BH3结构域与beclin1结合而影响其活性。
一文帮你理清自噬研究思路_Beclin - 搜狐
2018年12月15日 · Beclin 1 是 Ⅲ 类 PI3K 复合物的亚基,Beclin 1 与自噬前体的结合启动自噬体的形成,因此该蛋白是自噬体形成所必须的。 而且,在哺乳动物中鉴定的第一个介导自噬的重要基因就是 Beclin 1 基因,它具有抗肿瘤和抗感染的功能。
图解| 5 分钟看懂自噬信号通路 - 知乎
III 级 PI3K 复合体,包括了 hVps34, Beclin-1 (酵母 Atg6 的哺乳动物同源物),p150 (酵母 Vps15 的哺乳动物同源物) 和 Atg14-like 蛋白 (Atg14L 或 Barkor) 或 抗紫外线照射相关基因 (UVRAG),都是自体吞噬诱导所需要的。
BECLIN1: Protein Structure, Function and Regulation - PMC
BECLIN1 is a well-established regulator of autophagy, a process essential for mammalian survival. It functions in conjunction with other proteins to form Class III Phosphoinositide 3-Kinase (PI3K) complexes to generate phosphorylated phosphatidylinositol (PtdIns), lipids essential for not only autophagy but other membrane trafficking processes.
【热点】研究自噬不得不说的关键分子 - 知乎
Beclin1(BECN1)是酵母Atg6在哺乳动物中的同源基因。 由于Beclin1与肿瘤的密切关系,成为了自噬与肿瘤关联的重要纽带。 Beclin1被ULK1磷酸化,并作为PI3K复合物的整体支架,促进自噬蛋白定位到自噬泡。 当PI3K复合物与其他不同的调节蛋白结合时,选择性地参与自噬的不同阶过程,如:与Atg14结合参与自噬泡的形成;与UVRAG结合参与自噬泡的成熟和运输等。 Phosphatidylinositol 3-kinase complex and Phosphatidylinositol 3-phosphate (PI3-P) …
BECN1 - Wikipedia
Beclin-1 is a protein that in humans is encoded by the BECN1 gene. [5][6] Beclin-1 is a mammalian ortholog of the yeast autophagy-related gene 6 (Atg6) and BEC-1 in the C. elegans nematode. [7] This protein interacts with either BCL-2 or PI3k class III, playing a critical role in the regulation of both autophagy and cell death.
The Beclin 1 network regulates autophagy and apoptosis - PMC
Beclin 1, the mammalian orthologue of yeast Atg6, has a central role in autophagy, a process of programmed cell survival, which is increased during periods of cell stress and extinguished during the cell cycle. It interacts with several cofactors ...
Beclin 1, Bcl-2 and Autophagy - PubMed
Beclin 1 is the first mammalian autophagy protein identified as a novel Bcl-2-interacting protein. Subsequent studies have demonstrated that this landmark protein is essential for autophagy. By investigating the interaction between Bcl-2 and Beclin 1, key molecular mechanisms of mammalian autophagy …
BECLIN1: Protein Structure, Function and Regulation - PubMed
2021年6月17日 · BECLIN1 is a well-established regulator of autophagy, a process essential for mammalian survival. It functions in conjunction with other proteins to form Class III Phosphoinositide 3-Kinase (PI3K) complexes to generate phosphorylated phosphatidylinositol (PtdIns), lipids essential for not only autophagy but other membrane trafficking processes.
Beclin 1在凋亡和自噬中的调节作用 - pku.edu.cn
Beclin 1是自噬关键调控蛋白之一,参与自噬体膜形成.近期,大量研究结果指出,Beclin 1是caspase家族蛋白酶的全新底物,可被caspase剪切.剪切后的Beclin 1失去自噬调节功能,转而加剧凋亡进程.因而,Beclin 1对细胞凋亡和自噬起着重要的调控作用.本文主要对细胞凋亡和自噬的 ...