149 results found
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Evidence for a DNA-relay mechanism in ParABS-mediated chromosome segregation

    Hoong Chuin Lim et al.
    In vitro, in vivo and in silico evidence suggests that bacteria exploit intrinsic chromosomal fluctuations to achieve intracellular transport.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    CTP and parS coordinate ParB partition complex dynamics and ParA-ATPase activation for ParABS-mediated DNA partitioning

    James A Taylor et al.
    CTP and centromere-like parS-DNA act synergistically and catalytically to activate ParB, which remains activated after leaving parS to tune ParA–ParB and ParB–ParB interaction dynamics for robust ParABS-mediated F-plasmid DNA segregation.
    1. Developmental Biology

    Endothelial cell-type-specific molecular requirements for angiogenesis drive fenestrated vessel development in the brain

    Sweta Parab et al.
    Identification of a developmental mechanism critical for the generation of brain vessel heterogeneity.
    1. Chromosomes and Gene Expression
    2. Structural Biology and Molecular Biophysics

    CTP promotes efficient ParB-dependent DNA condensation by facilitating one-dimensional diffusion from parS

    Francisco de Asis Balaguer et al.
    Single-molecule methods reveal that cytidine triphosphate promotes DNA condensation specifically at bacterial centromeres by facilitating one-dimensional diffusion of ParB from parS sites.
    1. Structural Biology and Molecular Biophysics
    2. Microbiology and Infectious Disease

    In situ structural analysis of the Yersinia enterocolitica injectisome

    Mikhail Kudryashev et al.
    The basal body of the type-III secretion system of Yersinia enterocolitica within bacterial membranes shows elasticity and is longer than related isolated systems.
    1. Structural Biology and Molecular Biophysics

    Structural insights into the nucleic acid remodeling mechanisms of the yeast THO-Sub2 complex

    Sandra K Schuller et al.
    The THO-Sub2 complex is an asymmetric homodimer that uses the spatial arrangement of two Sub2 helicases to prevent RNA:DNA hybrids.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    Structural and mechanistic basis of the EMC-dependent biogenesis of distinct transmembrane clients

    Lakshmi E Miller-Vedam et al.
    Structure-function characterization of the EMC's cytoplasmic, transmembrane, and lumenal domains reveal features critical for terminal helix insertion and a specialized role for the lumenal domain in polytopic membrane protein biogenesis.
    1. Stem Cells and Regenerative Medicine

    Inhibition of DYRK1A disrupts neural lineage specificationin human pluripotent stem cells

    Stephanie F Bellmaine et al.
    Small molecule inhibition of stem cell differentiation in vitro provides novel insight into how DYRK1A loss disrupts human nervous system development.
    1. Computational and Systems Biology
    2. Microbiology and Infectious Disease

    A long-term epigenetic memory switch controls bacterial virulence bimodality

    Irine Ronin et al.
    Hysteretic switching between virulence states has been observed in a human pathogen.
    1. Computational and Systems Biology
    2. Evolutionary Biology

    Synteny-based analyses indicate that sequence divergence is not the main source of orphan genes

    Nikolaos Vakirlis et al.
    Homology information implicit in regions of conserved synteny allows quantification of gene origination by complete sequence divergence, revealing a larger-than-expected role for other mechanisms of origin, including de novo origination.

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