منابع مشابه
Shrinking Daughters: Rlm1-Dependent G1/S Checkpoint Maintains Saccharomyces cerevisiae Daughter Cell Size and Viability.
The Rlm1 transcription factor is a target of the cell wall integrity pathway. We report that an rlm1Δ mutant grown on a nonfermentable carbon source at low osmolarity forms cell groups in which a mother cell is surrounded by smaller "satellite-daughter" cells. Mother cells in these groups progressed through repeated rounds of cell division with normal rates of bud growth and genetic stability; ...
متن کاملCell Differentiation and Checkpoint
DNA damage is induced in many types of cells by internal and external cell stress. When DNA is damaged, DNA Damage Response (DDR) programs are activated to repair the DNA lesions in order to preserve genomic integrity and suppress subsequent malignant transformation. Among these programs is cell cycle checkpoint that ensures cell cycle arrest and subsequent repair of the damaged DNA, apoptosis ...
متن کاملOverexpression of RhoH Permits to Bypass the Pre-TCR Checkpoint
RhoH, an atypical small Rho-family GTPase, critically regulates thymocyte differentiation through the coordinated interaction with Lck and Zap70. Therefore, RhoH deficiency causes defective T cell development, leading to a paucity of mature T cells. Since there has been no gain-of-function study on RhoH before, we decided to take a transgenic approach to assess how the overexpression of RhoH af...
متن کاملNovel pyrimidine-2,4-diamine derivative suppresses the cell viability and spindle assembly checkpoint activity by targeting Aurora kinases.
Mitosis represents a clinically important determination point in the life cycle of proliferating cells. One potential drug target within the mitotic machinery is the spindle assembly checkpoint (SAC), an evolutionarily conserved signaling pathway that monitors the connections between microtubules (MTs) and chromosomes. Mistakes in SAC signaling may lead to cell division errors that can trigger ...
متن کاملAssessment of cell viability.
Cell viability may be judged by morphological changes or by changes in membrane permeability and/or physiological state inferred from the exclusion of certain dyes of the uptake and retention of others. This unit presents methods based on dye exclusion, esterase activity, and mitochondrial membrane potential, as well as protocols for determining the pre-fixation viability of fixed cells either ...
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ژورنال
عنوان ژورنال: Cell Cycle
سال: 2010
ISSN: 1538-4101,1551-4005
DOI: 10.4161/cc.9.11.11849