614 results found
    1. Genetics and Genomics
    2. Microbiology and Infectious Disease

    An analog to digital converter controls bistable transfer competence development of a widespread bacterial integrative and conjugative element

    Nicolas Carraro et al.
    A new multistep hierarchical cascade controls activation of an integrative and conjugative element in a small subpopulation of cells in its bacterial host, yielding proficient DNA transferring cells.
    1. Microbiology and Infectious Disease

    Neighbor predation linked to natural competence fosters the transfer of large genomic regions in Vibrio cholerae

    Noémie Matthey et al.
    Whole-genome sequencing reveals the remarkable extent of horizontally moving genetic material in naturally competent Vibrio cholerae after a prey-killing DNA acquisition process.
    1. Computational and Systems Biology
    2. Microbiology and Infectious Disease

    Inter-species population dynamics enhance microbial horizontal gene transfer and spread of antibiotic resistance

    Robert M Cooper et al.
    Killing their neighbors allows bacteria to steal genes, including antibiotic resistance genes, which we observed under a microscope, quantified, modeled, and predicted potentially guiding strategies to combat it.
    1. Biochemistry and Chemical Biology

    A distinct tethering step is vital for vacuole membrane fusion

    Michael Zick, William T Wickner
    Rigorous assays of membrane fusion show that a distinct tethering step is required for lumenal compartment mixing in a manner that extends beyond simply increasing the amount of total trans-SNARE complex.
    1. Microbiology and Infectious Disease

    Unbiased homeologous recombination during pneumococcal transformation allows for multiple chromosomal integration events

    Jun Kurushima et al.
    DNA uptake and recombination in pneumococcus are highly efficient and independent of the cell-cycle or genetic location of the transformed allele, but limited to maximally 50% of the population.
    1. Biochemistry and Chemical Biology

    Coupling between the DEAD-box RNA helicases Ded1p and eIF4A

    Zhaofeng Gao et al.
    Ded1p and eIF4A, two RNA helicases that function in eukaryotic translation initiation, interact physically with each other and with the scaffolding protein eIF4G.
    1. Cell Biology

    COMP-1 promotes competitive advantage of nematode sperm

    Jody M Hansen et al.
    Nematode sperm respond to competitive environments by modulating cellular pathways involved in migration and storage to ensure their access to oocytes.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Multiple serine transposase dimers assemble the transposon-end synaptic complex during IS607-family transposition

    Wenyang Chen et al.
    Genetic, structural, and biochemical analyses of IS607-family transposons shows that the DNA translocation reaction proceeds very differently from other reactions promoted by serine recombinases.
    1. Cell Biology
    2. Developmental Biology

    Optogenetic investigation of BMP target gene expression diversity

    Katherine W Rogers et al.
    Optogenetic manipulation of BMP signaling indicates that diversity in BMP-dependent gene expression is not well explained by differential responses to BMP, and combinatorial signaling is a major driver of diversity.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    Design principles of a microtubule polymerase

    Elisabeth A Geyer et al.
    Antagonism between binding to unpolymerized subunits and to the lattice leads to a ratcheting model for the processive action of a microtubule polymerase.

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