262 results found
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    DNA binding polarity, dimerization, and ATPase ring remodeling in the CMG helicase of the eukaryotic replisome

    Alessandro Costa et al.
    The Mcm2-7 motor unwinds DNA using an approach distinct from that of superfamily III helicases, and accesses multiple ring configurations and assembly states during the initiation of DNA replication.
    1. Chromosomes and Gene Expression

    MCM2–7-dependent cohesin loading during S phase promotes sister-chromatid cohesion

    Ge Zheng et al.
    Systematic analyses of DNA replication machinery components in human cells reveal a requirement of MCM-dependent de novo loading or mobilization of cohesin at replication forks in establishing sister-chromatid cohesion.
    1. Cell Biology

    DNA Replication: Rethinking origin licensing

    Stephen P Bell
    Human cells that lack a subunit in their origin recognition complex are viable, which suggests the existence of alternative mechanisms to initiate DNA replication.
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    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. Cell Biology
    2. Chromosomes and Gene Expression

    E3 ubiquitin ligase Bre1 couples sister chromatid cohesion establishment to DNA replication in Saccharomyces cerevisiae

    Wei Zhang et al.
    E3 ubiquitin ligase Bre1-induced H2B monoubiquitination is epigenetically important for recruiting replication factor Mcm10 and cohesion establishment factors Ctf4, Ctf18 and Eco1 to early replication origins to establish sister chromatid cohesion.
    1. Cell Biology

    Single-cell RNA-seq reveals hidden transcriptional variation in malaria parasites

    Adam J Reid et al.
    Plasmodium parasite transcription shifts dramatically along asexual development, and transmission stages variably express important immune evasion genes, suggesting much interesting biology has until now been hidden by bulk analyses.
    1. Cancer Biology

    MELK expression correlates with tumor mitotic activity but is not required for cancer growth

    Christopher J Giuliano et al.
    Cancer cells can grow in vitro and in vivo in the absence of maternal embryonic leucine zipper kinase (MELK).
    1. Structural Biology and Molecular Biophysics

    Structural basis of ribosomal peptide macrocyclization in plants

    Joel Haywood et al.
    The first crystal structure of an active plant asparaginyl endopeptidase reveals a tetrahedral intermediate state in its active site, which may help to explain why these enzymes have been independently recruited to perform peptide macrocyclization.
    1. Computational and Systems Biology
    2. Immunology and Inflammation

    Computer-guided design of optimal microbial consortia for immune system modulation

    Richard R Stein et al.
    A computational method is presented that quantifies the effect that specific bacteria in the gut have on the immune system and guides the design of therapeutically potent microbial consortia to cure auto-immune disease.

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