6,268 results found
    1. Biochemistry and Chemical Biology

    Ctf4 organizes sister replisomes and Pol α into a replication factory

    Zuanning Yuan et al.
    Eukaryotic replisomes are strongly connected together to replicate both sister DNAs produced from a bidirectional origin.
    1. Developmental Biology
    2. Evolutionary Biology

    Functional divergence of paralogous transcription factors supported the evolution of biomineralization in echinoderms

    Jian Ming Khor, Charles A Ettensohn
    A gene duplication event has permitted the functional specialization of a homeodomain transcription factor through changes in exon-intron organization and these changes have supported the evolution of a major, phylum-level morphological novelty.
    1. Chromosomes and Gene Expression

    CTCF confers local nucleosome resiliency after DNA replication and during mitosis

    Nick Owens et al.
    In contrast to other transcription factors, CTCF and Esrrb rapidly regain binding after replication and remain bound to their targets during mitosis, preserving local nucleosome organization throughout the cell cycle.
    1. Microbiology and Infectious Disease

    A virus-packageable CRISPR screen identifies host factors mediating interferon inhibition of HIV

    Molly OhAinle et al.
    Host restriction factors that block cross-species transmission also play a role in limiting the replication of highly-adapted HIV-1 in IFN-stimulated cells.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    DNA-mediated association of two histone-bound complexes of yeast Chromatin Assembly Factor-1 (CAF-1) drives tetrasome assembly in the wake of DNA replication

    Francesca Mattiroli et al.
    After DNA replication, nucleosomes are assembled by two histone chaperone complexes each bound to an H3-H4 histone dimer, suggesting the feasibility for a semi-conservative mode of epigenome inheritance.
    1. Microbiology and Infectious Disease
    2. Plant Biology

    CCR4, a RNA decay factor, is hijacked by a plant cytorhabdovirus phosphoprotein to facilitate virus replication

    Zhen-Jia Zhang et al.
    A cytorhabdovirus phosphoprotein hijacks host CCR4 to trigger turnover of viral nucleoprotein (N)-bound cellular RNAs, thereby releasing nascent RNA-free N protein molecules to bind viral genomic RNAs for optimal replication.
    1. Chromosomes and Gene Expression

    Factors affecting template switch recombination associated with restarted DNA replication

    Manisha Jalan et al.
    Genomic deletions and gene conversions, caused by template switching associated with restarted DNA replication, are detected downstream of a collapsed replication fork and are suppressed by several conserved DNA helicases.
    1. Developmental Biology
    2. Evolutionary Biology

    Development: Transforming a transcription factor

    Robert D Burke
    A transcription factor that regulates skeleton formation in sea urchin embryos has evolved a new domain that is essential for this process.
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    1. Microbiology and Infectious Disease

    pp32 and APRIL are host cell-derived regulators of influenza virus RNA synthesis from cRNA

    Kenji Sugiyama et al.
    The host-derived factors, pp32 and APRIL, interact with influenza viral RNA polymerase to support viral genomic RNA synthesis from complementary RNA.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Insights into the molecular architecture and histone H3-H4 deposition mechanism of yeast Chromatin assembly factor 1

    Paul Victor Sauer et al.
    The CAF1 complex binds single histone H3-H4 dimers, and two such complexes associate with extended DNA elements to ensure the deposition of H3-H4 tetramers, the first step in the assembly of nucleosomes.

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