470 results found
    1. Chromosomes and Gene Expression

    Checkpoint inhibition of origin firing prevents inappropriate replication outside of S-phase

    Mark C Johnson et al.
    The S-phase checkpoint has roles in all phases of the cell cycle, which has implications for the majority of cancers that lack cell cycle controls.
    1. Chromosomes and Gene Expression

    SETD2 is required for DNA double-strand break repair and activation of the p53-mediated checkpoint

    Sílvia Carvalho et al.
    The involvement of SETD2 in an important DNA repair pathway could explain the high frequency of SETD2 mutations in several cancers and may provide an alternative mechanism to evade the p53-mediated checkpoint.
    1. Cell Biology

    A FRET-based study reveals site-specific regulation of spindle position checkpoint proteins at yeast centrosomes

    Yuliya Gryaznova et al.
    Daughter-cell-associated factors and centrosome-based regulation is important in mitotic exit and spindle position checkpoint control.
    1. Chromosomes and Gene Expression

    Cdc7 activates replication checkpoint by phosphorylating the Chk1-binding domain of Claspin in human cells

    Chi-Chun Yang et al.
    Cdc7 and CK1g1 independently and additively phosphorylate the Chk1-binding domain of claspin to activate replication checkpoint with differential contribution of each kinase in different cell types.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    A molecular basis for the differential roles of Bub1 and BubR1 in the spindle assembly checkpoint

    Katharina Overlack et al.
    The mechanism behind the recruitment of the spindle assembly checkpoint protein BubR1 to the kinetochore illustrates how gene duplication and sub-functionalization can influence the functional complexity of a protein network.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    ATR/Mec1 prevents lethal meiotic recombination initiation on partially replicated chromosomes in budding yeast

    Hannah G Blitzblau, Andreas Hochwagen
    During meiosis, budding yeast use a checkpoint involving the protein Mec1 to prevent the formation of double-strand breaks in DNA that has not completed replication.
    1. Cell Biology

    DNA damage checkpoint activation impairs chromatin homeostasis and promotes mitotic catastrophe during aging

    Matthew M Crane et al.
    Activation of a DNA-damage cell cycle checkpoint during aging causes genome instability and senescence in yeast mother cells.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Bub3 reads phosphorylated MELT repeats to promote spindle assembly checkpoint signaling

    Ivana Primorac et al.
    The spindle assembly protein Bub3 recruits the checkpoint kinase Bub1 to kinetochores by binding to phosphorylated MELT repeats in the kinetochore subunit Knl1.
    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.
    1. Cancer Biology
    2. Chromosomes and Gene Expression

    Deletion of the MAD2L1 spindle assembly checkpoint gene is tolerated in mouse models of acute T-cell lymphoma and hepatocellular carcinoma

    Floris Foijer et al.
    Chromosomal instability through spindle assembly checkpoint alleviation facilitates malignant transformation of hepatocytes and T-cells in vivo, resulting in cancers with recurrent karyotypes.

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