Amn1 governs post-mitotic cell separation in Saccharomyces cerevisiae.

Amn1 governs post-mitotic cell separation in Saccharomyces cerevisiae.
复制标题

Amn1 控制酿酒酵母有丝分裂后细胞分离

DOI:
10.1371/journal.pgen.1007691
复制
发表时间:
2018-10
期刊:
影响因子:
4.5
通讯作者:
Luo Z
Luo Z
中科院分区:
生物学2区
文献类型:
--
作者:
Fang O;Hu X;Wang L;Jiang N;Yang J;Li B;Luo Z

文献摘要

参考文献

被引文献

相似文献

有丝分裂后的细胞分离是真核细胞生命周期中最重要的事件之一,但这一基本生物学过程的分子基础远未得到结论和充分表征。我们使用芽殖酵母酿酒酵母作为模型,并证明AMN 1作为一个主要的基因有丝分裂后的细胞分离的天然酵母菌株,YL 1C。具体来说,我们定义了一个新的11个残基的结构域,Amn 1结合Ace 2。此外,我们证明,Amn 1诱导蛋白水解Ace 2通过泛素蛋白酶体系统,反过来,下调Ace 2的下游靶基因参与水解的初级隔膜,从而导致抑制细胞分离和凝集的单倍体酵母细胞。使用ChIP分析和位点特异性突变实验,我们表明Ste 12和α 1-α12异源二聚体是AMN 1的两个直接调节因子。具体而言,α 1-α2,一种二倍体特异性异源二聚体,通过与AMN 1启动子结合来阻止Ste 12失活AMN 1。这证明了Amn 1控制的细胞分离是如何高度依赖于细胞类型的。最后,我们发现来自YL 1C的AMN 1368 D在大多数S菌株中是显性等位基因。酿酒酵母(K. cerevisiae)在基因结构和表型效应上都是进化保守的。lactis和C.光滑的
Post-mitotic cell separation is one of the most prominent events in the life cycle of eukaryotic cells, but the molecular underpinning of this fundamental biological process is far from being concluded and fully characterized. We use budding yeast Saccharomyces cerevisiae as a model and demonstrate AMN1 as a major gene underlying post-mitotic cell separation in a natural yeast strain, YL1C. Specifically, we define a novel 11-residue domain by which Amn1 binds to Ace2. Moreover, we demonstrate that Amn1 induces proteolysis of Ace2 through the ubiquitin proteasome system and in turn, down-regulates Ace2’s downstream target genes involved in hydrolysis of the primary septum, thus leading to inhibition of cell separation and clumping of haploid yeast cells. Using ChIP assays and site-specific mutation experiments, we show that Ste12 and the a1-α12 heterodimer are two direct regulators of AMN1. Specifically, a1-α2, a diploid-specific heterodimer, prevents Ste12 from inactivating AMN1 through binding to its promoter. This demonstrates how the Amn1-governed cell separation is highly cell type dependent. Finally, we show that AMN1368D from YL1C is a dominant allele in most strains of S. cerevisiae and evolutionarily conserved in both genic structure and phenotypic effect in two closely related yeast species, K. lactis and C. glabrata.
DOI: 10.1186/gb-2010-11-7-r77
发表时间: 2010
期刊: Genome biology
影响因子: 12.3
作者:
Kuo D;Tan K;Zinman G;Ravasi T;Bar-Joseph Z;Ideker T
通讯作者: Ideker T
DOI: 10.1091/mbc.e03-01-0018
发表时间: 2003-09-01
影响因子: 3.3
作者:
Nelson, B;Kurischko, C;Luca, FC
通讯作者: Luca, FC
DOI: 10.1371/journal.pgen.1002846
发表时间: 2012
期刊: PLoS genetics
影响因子: 4.5
作者:
Burgess RJ;Zhou H;Han J;Li Q;Zhang Z
通讯作者: Zhang Z
DOI: 10.1101/gad.321105
发表时间: 2005-01-15
影响因子: 10.5
作者:
Prieler, S;Penkner, A;Klein, F
通讯作者: Klein, F
DOI: 10.1007/s002940050384
发表时间: 1998-09-01
期刊: CURRENT GENETICS
影响因子: 2.5
作者:
King, L;Butler, G
通讯作者: Butler, G