15 results found
    1. Chromosomes and Gene Expression

    Aurora-A mediated histone H3 phosphorylation of threonine 118 controls condensin I and cohesin occupancy in mitosis

    Candice L Wike et al.
    A histone modification that alters the nucleosome structure occurs in mitosis and promotes chromosome packaging and the timely removal of condensin I and cohesion, to achieve chromosome segregation.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    The COMA complex interacts with Cse4 and positions Sli15/Ipl1 at the budding yeast inner kinetochore

    Josef Fischböck-Halwachs et al.
    The chromosomal passenger complex interacts with the inner kinetochore COMA complex through the Ctf19 C-terminus in vitro which is shown to be important for mediating accurate chromosome segregation.
    1. Chromosomes and Gene Expression

    Histone H3G34R mutation causes replication stress, homologous recombination defects and genomic instability in S. pombe

    Rajesh K Yadav et al.
    Mutation of Glycine 34 to Arginine within the N-terminal tail of histone H3 alters post-translational modifications on Lysine 36 and is associated with a delay in replication restart, defective homologous recombination and an increase in genomic instability.
    1. Cell Biology

    Probing the catalytic functions of Bub1 kinase using the small molecule inhibitors BAY-320 and BAY-524

    Anna P Baron et al.
    Chemical inhibition of Bub1 shows that the catalytic activity is not required for normal mitotic progression, but it makes chromosome segregation and cell proliferation more sensitive to the effects of the anti-cancer drug Paclitaxel.
    1. Physics of Living Systems

    Upper bound on the biological effects of 50/60 Hz magnetic fields mediated by radical pairs

    PJ Hore
    Any effects of environmental 50/60 Hz magnetic fields on human biology due to a radical pair mechanism should be no more dangerous than those incurred by travelling a few kilometres.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    The MAP kinase pathway coordinates crossover designation with disassembly of synaptonemal complex proteins during meiosis

    Saravanapriah Nadarajan et al.
    Coordination between crossover designation and synaptonemal complex disassembly is executed via a conserved MAP kinase pathway and is critical for accurate chromosome segregation during meiosis.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    A sequential multi-target Mps1 phosphorylation cascade promotes spindle checkpoint signaling

    Zhejian Ji et al.
    The spindle checkpoint kinase Mps1 sequentially phosphorylates multiple substrates to amplify checkpoint signals, making the checkpoint highly dependent on Mps1 function and directly responsive to kinetochore-microtubule attachment.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Divergent kleisin subunits of cohesin specify mechanisms to tether and release meiotic chromosomes

    Aaron F Severson, Barbara J Meyer
    Mechanisms that tether and release replicated sister chromatids to produce sperm and eggs rely extensively on meiotic cohesin complexes that are endowed with unexpectedly different properties specified by a single interchangeable subunit, the α-kleisin.
    1. Chromosomes and Gene Expression

    High levels of histones promote whole-genome-duplications and trigger a Swe1WEE1-dependent phosphorylation of Cdc28CDK1

    Douglas Maya Miles et al.
    Ploidy is stably maintained in Saccharomyces cerevisae by a tight coordination between histone levels and cell cycle events.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    A compartmentalized signaling network mediates crossover control in meiosis

    Liangyu Zhang et al.
    A regulatory circuit that localizes to the synaptonemal complex, a liquid crystalline compartment between chromosomes, ensures crossing-over while limiting the number of crossovers between homologous chromosomes during meiosis.

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