883 results found
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Meiosis I chromosome segregation is established through regulation of microtubule–kinetochore interactions

    Matthew P Miller et al.
    Preventing premature interactions between microtubules and protein-based structures called kinetochores ensures that chromosomes are segregated by meiosis rather than mitosis in reproductive cells.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Chromosome mis-segregation and cytokinesis failure in trisomic human cells

    Joshua M Nicholson et al.
    Aneuploidy can cause chromosome mis-segregation and specific cellular phenotypes driven by expression of genes on the extra chromosome.
    1. Cell Biology

    Centrosome age regulates kinetochore–microtubule stability and biases chromosome mis-segregation

    Ivana Gasic et al.
    The presence of cenexin at the old centrosome imposes a functional asymmetry on the mitotic spindle that impacts chromosome alignment and segregation.
    1. Cell Biology

    Splicing factors Sf3A2 and Prp31 have direct roles in mitotic chromosome segregation

    Claudia Pellacani et al.
    Extensive cytological and biochemical analyses show that the conserved Sf3A2 and Prp31 splicing factors bind microtubules and the Ndc80 complex, playing direct mitotic functions in both Drosophila and human mitosis.
    1. Chromosomes and Gene Expression

    Condensin controls cellular RNA levels through the accurate segregation of chromosomes instead of directly regulating transcription

    Clémence Hocquet et al.
    Contrary to the generally accepted model, condensin maintains proper gene expression by promoting the accurate segregation of chromosomes and the partitioning of the RNA-exosome throughout mitosis, instead of directly regulating transcription.
    1. Cell Biology

    Kinetochores attached to microtubule-ends are stabilised by Astrin bound PP1 to ensure proper chromosome segregation

    Duccio Conti et al.
    Human chromosome-microtubule attachments are stabilised by Astrin-mediated dynamic delivery of PP1 phosphatase to the attachment site, which ensures the normal segregation of chromosomes.
    1. Chromosomes and Gene Expression
    2. Developmental Biology

    SMC5/6 is required for replication fork stability and faithful chromosome segregation during neurogenesis

    Alisa Atkins et al.
    The structural maintenance of chromosomes complex, SMC5/6, is crucial for brain development and function as it ensures proficient DNA replication in neural progenitor cells prior to chromosome segregation.
    1. Cell Biology

    Torsin ATPases influence chromatin interaction of the Torsin regulator LAP1

    Naemi Luithle et al.
    The INM protein LAP1B, an activator of Torsin ATPases, is a chromatin-binding factor that erroneously persists on mitotic chromatin if Torsin functionality is compromised, inducing chromosome segregation defects and binucleation.
    1. Chromosomes and Gene Expression

    A CTP-dependent gating mechanism enables ParB spreading on DNA

    Adam SB Jalal et al.
    A structural and biochemical approach shows that CTP binding and hydrolysis regulate nucleation, spreading, and recycling of a chromosome segregation protein ParB.
    1. Cell Biology

    The copy-number and varied strengths of MELT motifs in Spc105 balance the strength and responsiveness of the spindle assembly checkpoint

    Babhrubahan Roy et al.
    Cell biological and genetic analyses reveal how budding yeast cells optimize Spindle Assembly checkpoint signaling to maximize chromosome segregation accuracy and minimize unnecessary delays in anaphase onset.

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