Myosin-driven peroxisome partitioning in S. cerevisiae.
Myosin-driven peroxisome partitioning in S. cerevisiae.
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DOI:
10.1083/jcb.200904050
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发表时间:
2009-08-24
期刊:
影响因子:
--
通讯作者:
Rachubinski RA
中科院分区:
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
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.
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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:
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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:
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通讯作者:
Ferro-Novick S
影响因子:
11.8
作者:
Peng, Yutian;Weisman, Lois S.
通讯作者:
Weisman, Lois S.
影响因子:
9.2
作者:
Beach, DL;Thibodeaux, J;Bloom, K
通讯作者:
Bloom, K