146 results found
    1. Physics of Living Systems

    Sequence-dependent base pair stepping dynamics in XPD helicase unwinding

    Zhi Qi et al.
    The ability of an enzyme called XPD helicase to unwind the double helix is influenced by the DNA sequence and the availability of energy.
    1. Biochemistry and Chemical Biology
    2. Evolutionary Biology

    The autoregulation of a eukaryotic DNA transposon

    Corentin Claeys Bouuaert et al.
    A DNA transposon, or ‘jumping gene’, controls its amplification within a genome through a competition between the enzyme multimers that are responsible for its mobility.
    1. Neuroscience

    Skill learning strengthens cortical representations of motor sequences

    Tobias Wiestler, Jörn Diedrichsen
    Detailed analysis of fMRI data shows that sequences of movements are associated with individual patterns of neural activity that become more distinct with training.
    1. Structural Biology and Molecular Biophysics

    Complete dissection of transcription elongation reveals slow translocation of RNA polymerase II in a linear ratchet mechanism

    Manchuta Dangkulwanich et al.
    Quantification of all the major on- and off-pathway kinetic parameters in the transcription elongation cycle reveals that RNA polymerase II translocates slowly in a linear, non-branched Brownian ratchet mechanism.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structure and function of the Smoothened extracellular domain in vertebrate Hedgehog signaling

    Sigrid Nachtergaele et al.
    A cysteine-rich domain within the Smoothened receptor may represent a novel therapeutic target for cancers caused by abnormal functioning of the Hedgehog signaling pathway.
    1. Biochemistry and Chemical Biology
    2. Ecology

    Sex-specific triacylglycerides are widely conserved in Drosophila and mediate mating behavior

    Jacqueline SR Chin et al.
    Triacylglycerides found in the males of 11 species of Drosophila form a largely overlooked, novel, sex-specific class of pheromones that act to suppress courtship behaviour.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Fluorescent sensors for activity and regulation of the nitrate transceptor CHL1/NRT1.1 and oligopeptide transporters

    Cheng-Hsun Ho, Wolf B Frommer
    Peptide and nitrate transporters have been converted into fluorescent reporters of transport activity and have been used to measure various transport properties including the dual affinity of the nitrate transceptor
    1. Neuroscience

    Cell-intrinsic mechanisms of temperature compensation in a grasshopper sensory receptor neuron

    Frederic A Roemschied et al.
    The firing rates of neurons in the grasshopper auditory system are surprisingly robust to changes in temperature, and cell-intrinsic mechanisms are sufficient to explain this temperature insensitivity.
    1. Ecology
    2. Epidemiology and Global Health

    Hidden shift of the ionome of plants exposed to elevated CO2 depletes minerals at the base of human nutrition

    Irakli Loladze
    Increasing levels of atmospheric carbon dioxide reduce the mineral content but increase the levels of starch and sugars found in crop plants; which could exacerbate both obesity and malnutrition in some human populations.
    1. Cell Biology

    Symmetric exchange of multi-protein building blocks between stationary focal adhesions and the cytosol

    Jan-Erik Hoffmann et al.
    In the cytosol, the proteins constituting cell-matrix adhesion sites form multi-protein building blocks which enter and leave these sites unaltered, thereby contributing to their rapid and correct self-assembly.

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