Mutations in the yeast kinesin-like Cin8p are alleviated by osmotic support.

Mutations in the yeast kinesin-like Cin8p are alleviated by osmotic support.
复制标题

渗透压支持减轻了酵母驱动蛋白样 Cin8p 的突变。

DOI:
10.1016/j.femsle.2005.02.009
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发表时间:
2005
影响因子:
2.1
通讯作者:
Eshel,Dan
Eshel,Dan
中科院分区:
生物学4区
文献类型:
--
作者:
Korolyev,Eduard;Steinberg-Neifach,Olga;Eshel,Dan

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Loss of function of Cin8p (a yeast kinesin-like motor protein) in the absence of either Kip1p (a motor of the same family) or Dyn1p (the dynein heavy chain) is lethal. We report thatcin8mutants are sensitive to the cell wall disrupting agents calcofluor white and SDS. Conditionally lethal double mutants containing the temperature sensitive allelecin8-3in a background deletion of eitherkip1ordyn1grew normally at the restrictive temperature when osmolytes such as sorbitol were added to the medium. Sorbitol could not alleviate the sensitivity ofcin8mutants to calcofluor and SDS. However, it rendered cells more resistant to the microtubule depolymerizing drugs benomyl and thiabendazole (TBZ). Our findings reveal a novel interaction between mitotic motor proteins and the cell wall and suggest that the induction of signaling pathways aimed at maintaining the cell wall suppresses phenotypes of mutations in microtubule-associated motor proteins through stabilization of microtubules.
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