2,512 results found
    1. Genetics and Genomics

    A large gene family in fission yeast encodes spore killers that subvert Mendel’s law

    Wen Hu et al.
    Two members of a large fission yeast (Schizosaccharomyces pombe) gene family are shown to act as spore killers that enhance their own transmission into progenies by impeding the maturation of spores not inheriting them.
    1. Evolutionary Biology
    2. Genetics and Genomics

    Combinations of Spok genes create multiple meiotic drivers in Podospora

    Aaron A Vogan et al.
    Members of a single gene family determine the genomic basis of multiple coexisting meiotic drive elements in natural populations of Podospora.
    1. Structural Biology and Molecular Biophysics

    Mechanism of activation at the selectivity filter of the KcsA K+ channel

    Florian T Heer et al.
    The transmembrane helices forming the pore determine the conductance of the selectivity filter through allosteric interactions.
    1. Structural Biology and Molecular Biophysics

    The ion selectivity filter is not an activation gate in TRPV1-3 channels

    Andrés Jara-Oseguera et al.
    The TRPV1, TRPV2 and TRPV3 channels are gated on the cytosolic side of the pore, whereas structural changes in the ion selectivity filter associated with activation don't control cation access.
    1. Structural Biology and Molecular Biophysics
    2. Neuroscience

    Structure of a pore-blocking toxin in complex with a eukaryotic voltage-dependent K+ channel

    Anirban Banerjee et al.
    Charybdotoxin, a toxin produced by scorpions, blocks a K+ channel by binding in a lock-and-key fashion to the mouth of the channel and presenting a lysine amino group, which serves as a K+ mimic in the selectivity filter.
    1. Structural Biology and Molecular Biophysics
    2. Neuroscience

    A selectivity filter at the intracellular end of the acid-sensing ion channel pore

    Timothy Lynagh et al.
    Sodium selectivity of acid-sensing ion channels is mediated by negatively charged side chains and not by a size-exclusion mechanism.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Channel nuclear pore complex subunits are required for transposon silencing in Drosophila

    Marzia Munafò et al.
    By linking export and licensing of a piRNA precursor transcript, channel nuclear pore complex subunits Nup54 and Nup58 are specifically required to silence transposons in the Drosophila ovary.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    wtf genes are prolific dual poison-antidote meiotic drivers

    Nicole L Nuckolls et al.
    Selfish wtf meiotic drive genes use overlapping transcripts to encode both a trans-acting poison to kill gametes that do not inherit the gene and a gamete-autonomous antidote to specifically rescue the gametes that do.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    The molecular mechanism of nuclear transport revealed by atomic-scale measurements

    Loren E Hough et al.
    NMR spectroscopy has been used to explain a central unresolved issue of nuclear transport, namely how it can be both fast and specific.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    Cryo-EM structures of the DCPIB-inhibited volume-regulated anion channel LRRC8A in lipid nanodiscs

    David M Kern et al.
    The basis for small-molecule block, insights into gating, and an unexpected architectural role for the lipid membrane are revealed in structures of the volume regulated anion channel LRRC8A.

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