56 results found
    1. Chromosomes and Gene Expression

    Multiple kinases inhibit origin licensing and helicase activation to ensure reductive cell division during meiosis

    David V Phizicky et al.
    Meiotic cells inhibit two distinct steps of replisome assembly with multiple kinases to prevent DNA replication between Meiosis I and Meiosis II.
    1. Biochemistry and Chemical Biology
    2. Evolutionary Biology

    Ancestral resurrection reveals evolutionary mechanisms of kinase plasticity

    Conor J Howard et al.
    Reconstructing ancestral enzymes has revealed that a switch in kinase substrate preference evolved via an expanded specificity intermediate that is tolerated in vivo, thus providing a path for kinase diversification.
    1. Cancer Biology

    IGF2 mRNA binding protein-2 is a tumor promoter that drives cancer proliferation through its client mRNAs IGF2 and HMGA1

    Ning Dai et al.
    The IGF2 mRNA binding protein-2/IMP2, overexpressed in many common cancers, drives cancer cell proliferation by increasing the abundance of IGF2 and the oncogene HMGA1, which controls a network of effectors that enhance IGF2 action.
    1. Chromosomes and Gene Expression

    Gene regulation: A transcriptional switch controls meiosis

    A Elizabeth Hildreth, Karen M Arndt
    A key protein involved in the segregation of meiotic chromosomes is produced 'just in time' by the regulated expression of two mRNA isoforms.
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    1. Chromosomes and Gene Expression

    YTH-RNA-binding protein prevents deleterious expression of meiotic proteins by tethering their mRNAs to nuclear foci

    Yuichi Shichino et al.
    A YTH-domain protein Mmi1 prevents deleterious expression of meiotic proteins by tethering their mRNAs to nuclear foci.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Aneuploidy as a cause of impaired chromatin silencing and mating-type specification in budding yeast

    Wahid A Mulla et al.
    Genetic analyses reveal that purely quantitative changes in the relative copy number of chromosomes can be sufficient to disrupt the epigenetic mechanisms that define the cells' differentiated state.
    1. Chromosomes and Gene Expression

    H3.3K27M mutant proteins reprogram epigenome by sequestering the PRC2 complex to poised enhancers

    Dong Fang et al.
    Redistribution of the PRC2 complex in H3.3K27M mutant cells to poised enhancers contributes to the global reduction of H3K27me3 in cells expressing the mutant proteins.
    1. Developmental Biology

    DNA methylation and gene expression changes derived from assisted reproductive technologies can be decreased by reproductive fluids

    Sebastian Canovas et al.
    Reproductive fluids help the correct establishment of some epigenetic marks and gene expression in preimplantation pig embryos.
    1. Microbiology and Infectious Disease

    Adaptive tuning of mutation rates allows fast response to lethal stress in Escherichia coli

    Toon Swings et al.
    Population mutation rates are highly flexible and evolvable under extreme stress conditions, matching changes in selective pressure to avoid extinction of the entire population.
    1. Microbiology and Infectious Disease

    Release of human cytomegalovirus from latency by a KAP1/TRIM28 phosphorylation switch

    Benjamin Rauwel et al.
    Inactivation of KAP1 by mTOR-mediated phosphorylation releases human cytomegalovirus from latency, and has the potential to be used as a therapy to purge the virus from transplant organs.

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