219 results found
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Distinct roles for S. cerevisiae H2A copies in recombination and repeat stability, with a role for H2A.1 threonine 126

    Nealia CM House et al.
    Despite differing by only one amino acid in the C-terminal tail, copy 1 of yeast histone 2A has a repair-specific role not shared by copy 2.
    1. Biochemistry and Chemical Biology

    Ribozyme-catalysed RNA synthesis using triplet building blocks

    James Attwater et al.
    Adopting RNA trinucleotides as substrates, ribozymes can catalyse the copying of structured RNA sequences, allowing self-synthesis by part of a newly evolved symbiotic ribozyme pair.
    1. Microbiology and Infectious Disease

    A dedicated diribonucleotidase resolves a key bottleneck for the terminal step of RNA degradation

    Soo-Kyoung Kim et al.
    RNA degradation is completed through specific intermediates, such as diribonucleotides, which must be removed from the cells by a specific enzyme.
    1. Chromosomes and Gene Expression
    2. Physics of Living Systems

    DNA sequence encodes the position of DNA supercoils

    Sung Hyun Kim et al.
    Single-molecule experiments reveal that plectonemic supercoils occupy specific positions on DNA and a physical model relates this to the intrinsic curvature, providing an insight into how supercoiling organizes the genome.
    1. Cancer Biology

    Supervised mutational signatures for obesity and other tissue-specific etiological factors in cancer

    Bahman Afsari et al.
    A supervised methodology for mutational signatures outperforms the current standard unsupervised approach revealing new tissue-dependent mutational signatures among which some for obesity.
    1. Cancer Biology

    Use of signals of positive and negative selection to distinguish cancer genes and passenger genes

    László Bányai et al.
    In contrast with earlier conclusions, negative selection has a major role in cancer evolution.
    1. Biochemistry and Chemical Biology

    Crystallographic observation of nonenzymatic RNA primer extension

    Wen Zhang et al.
    Time resolved crystal structures reveal the binding of activated monomers to the template, followed by generation of the imidazolium-bridged dinucleotide intermediate, and finally formation of a phosphodiester bond between the primer and the adjacent monomer.
    1. Biochemistry and Chemical Biology

    Nonenzymatic copying of RNA templates containing all four letters is catalyzed by activated oligonucleotides

    Noam Prywes et al.
    Nonenzymatic polymerization can copy templates containing all four RNA monomers, a prerequisite for the transition to the RNA world.
    1. Plant Biology

    A lectin receptor kinase as a potential sensor for extracellular nicotinamide adenine dinucleotide in Arabidopsis thaliana

    Chenggang Wang et al.
    Genetic and biochemical analyses demonstrate that cell-surface lectin receptors can potentially function as extracellular NAD+-binding receptors and provide direct evidence for extracellular NAD+ being a bona fide endogenous signaling molecule in plants.
    1. Computational and Systems Biology

    Building accurate sequence-to-affinity models from high-throughput in vitro protein-DNA binding data using FeatureREDUCE

    Todd R Riley et al.
    A biophysically principled algorithm can build quantitative models of protein-DNA binding specificity of unprecedented accuracy from a leading type of high-throughput in vitro binding data.

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