Myosin-driven peroxisome partitioning in S. cerevisiae.

Myosin-driven peroxisome partitioning in S. cerevisiae.
复制标题

DOI:
10.1083/jcb.200904050
复制
发表时间:
2009-08-24
期刊:
The Journal of cell biology
影响因子:
--
通讯作者:
Rachubinski RA
Rachubinski RA
中科院分区:
其他
文献类型:
--
作者:
Fagarasanu A;Mast FD;Knoblach B;Jin Y;Brunner MJ;Logan MR;Glover JN;Eitzen GA;Aitchison JD;Weisman LS;Rachubinski RA

文献摘要

参考文献

被引文献

相似文献

在酿酒酵母中,V类肌球蛋白马达Myo2p推动大多数细胞器的运动。我们最近确定Inp2p为Myo2p的过氧化物酶体特异性受体。在这项研究中,我们描绘的区域Myo2p致力于结合过氧化物酶体。使用突变体的Myo2p特异性受损过氧化物酶体结合,我们解剖细胞周期依赖性和过氧化物酶体分配依赖性的Inp2p调节机制。我们发现,虽然总的Inp2p水平振荡与细胞周期,Inp2p的水平对个人过氧化物酶体的控制过氧化物酶体遗传,作为Inp2p异常积累和装饰所有的过氧化物酶体在母细胞中的过氧化物酶体时,过氧化物酶体分区被废除。我们还发现,Inp2p是一种磷蛋白,其磷酸化水平与细胞周期有关,而与细胞中过氧化物酶体的定位无关。我们的研究结果表明,细胞器定位和细胞周期进程控制分子马达的细胞器特异性受体的水平,最终实现母细胞和子细胞之间的隔间的均匀分布。
In Saccharomyces cerevisiae, the class V myosin motor Myo2p propels the movement of most organelles. We recently identified Inp2p as the peroxisome-specific receptor for Myo2p. In this study, we delineate the region of Myo2p devoted to binding peroxisomes. Using mutants of Myo2p specifically impaired in peroxisome binding, we dissect cell cycle–dependent and peroxisome partitioning–dependent mechanisms of Inp2p regulation. We find that although total Inp2p levels oscillate with the cell cycle, Inp2p levels on individual peroxisomes are controlled by peroxisome inheritance, as Inp2p aberrantly accumulates and decorates all peroxisomes in mother cells when peroxisome partitioning is abolished. We also find that Inp2p is a phosphoprotein whose level of phosphorylation is coupled to the cell cycle irrespective of peroxisome positioning in the cell. Our findings demonstrate that both organelle positioning and cell cycle progression control the levels of organelle-specific receptors for molecular motors to ultimately achieve an equidistribution of compartments between mother and daughter cells.
肌球蛋白V附着货物需要两个功能子域的紧密关联。
DOI: 10.1083/jcb.200407146
发表时间: 2005-01-31
期刊: The Journal of cell biology
影响因子: --
作者:
Pashkova N;Catlett NL;Novak JL;Wu G;Lu R;Cohen RE;Weisman LS
通讯作者: Weisman LS
DOI: 10.1083/jcb.153.1.47
发表时间: 2001-04-02
期刊: The Journal of cell biology
影响因子: --
作者:
Rossanese OW;Reinke CA;Bevis BJ;Hammond AT;Sears IB;O'Connor J;Glick BS
通讯作者: Glick BS
DOI: 10.1083/jcb.200304030
发表时间: 2003-12-22
期刊: The Journal of cell biology
影响因子: --
作者:
Estrada P;Kim J;Coleman J;Walker L;Dunn B;Takizawa P;Novick P;Ferro-Novick S
通讯作者: Ferro-Novick S
DOI: 10.1016/j.devcel.2008.07.007
发表时间: 2008-09-16
期刊: DEVELOPMENTAL CELL
影响因子: 11.8
作者:
Peng, Yutian;Weisman, Lois S.
通讯作者: Weisman, Lois S.
DOI: 10.1016/s0960-9822(00)00837-x
发表时间: 2000-11-30
期刊: CURRENT BIOLOGY
影响因子: 9.2
作者:
Beach, DL;Thibodeaux, J;Bloom, K
通讯作者: Bloom, K