منابع مشابه
Condensin complexes regulate mitotic progression and interphase chromatin structure in embryonic stem cells
In an RNA interference screen interrogating regulators of mouse embryonic stem (ES) cell chromatin structure, we previously identified 62 genes required for ES cell viability. Among these 62 genes were Smc2 and -4, which are core components of the two mammalian condensin complexes. In this study, we show that for Smc2 and -4, as well as an additional 49 of the 62 genes, knockdown (KD) in somati...
متن کاملCohesin, condensin, and the intramolecular centromere loop together generate the mitotic chromatin spring
Sister chromatid cohesion provides the mechanistic basis, together with spindle microtubules, for generating tension between bioriented chromosomes in metaphase. Pericentric chromatin forms an intramolecular loop that protrudes bidirectionally from the sister chromatid axis. The centromere lies on the surface of the chromosome at the apex of each loop. The cohesin and condensin structural maint...
متن کاملCondensin I recruitment and uneven chromatin condensation precede mitotic cell death in response to DNA damage
Mitotic cell death (MCD) is a prominent but poorly defined form of death that stems from aberrant mitosis. One of the early steps in MCD is premature mitosis and uneven chromatin condensation (UCC). The mechanism underlying this phenomenon is currently unknown. In this study, we show that DNA damage in cells with a compromised p53-mediated G2/M checkpoint triggers the unscheduled activation of ...
متن کاملCondensin, Chromatin Crossbarring and Chromosome Condensation
The processes underlying the large-scale reorganisation of chromatin in mitosis that form compact mitotic chromosomes and ensure the fidelity of chromosome segregation during cell division still remain obscure. The chromosomal condensin complex is a major molecular effector of chromosome condensation and segregation in diverse organisms ranging from bacteria to humans. Condensin is a large, evo...
متن کاملAurora B controls the association of condensin I but not condensin II with mitotic chromosomes.
The assembly of mitotic chromosomes is controlled by condensin complexes. In vertebrates, condensin I binds to chromatin in prometaphase, confers rigidity to chromosomes and enables the release of cohesin complexes from chromosome arms, whereas condensin II associates with chromosomes in prophase and promotes their condensation. Both complexes are essential for chromosome segregation in anaphas...
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ژورنال
عنوان ژورنال: Nature Reviews Molecular Cell Biology
سال: 2016
ISSN: 1471-0072,1471-0080
DOI: 10.1038/nrm.2016.128