138 results found
    1. Biochemistry and Chemical Biology
    2. Developmental Biology

    CAMKII and Calcineurin regulate the lifespan of Caenorhabditis elegans through the FOXO transcription factor DAF-16

    Li Tao et al.
    Longevity in C. elegans is influenced not only by insulin/IGF-1 signalling, but also by CAMKII and calcineurin, acting on the same target, the transcription factor DAF-16.
    1. Cell Biology
    2. Plant Biology

    Fluorescent sensors reporting the activity of ammonium transceptors in live cells

    Roberto De Michele et al.
    A modified form of Green Fluorescent Protein integrated into an ammonium transporter provides a sensor that can be used to monitor transport activity in vivo.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    ATR/Mec1 prevents lethal meiotic recombination initiation on partially replicated chromosomes in budding yeast

    Hannah G Blitzblau, Andreas Hochwagen
    During meiosis, budding yeast use a checkpoint involving the protein Mec1 to prevent the formation of double-strand breaks in DNA that has not completed replication.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structural basis for activation and non-canonical catalysis of the Rap GTPase activating protein domain of plexin

    Yuxiao Wang et al.
    The crystal structures of the intracellular part of the plexin receptor in the active dimer form, and its complex with a key downstream signalling protein Rap, provide insights into how plexin initiates a signalling cascade involved in axon guidance.
    1. Chromosomes and Gene Expression

    A component of the mir-17-92 polycistronic oncomir promotes oncogene-dependent apoptosis

    Virginie Olive et al.
    While intact mir-17-92 acts as a potent oncogene in a mouse model of Burkitt’s lymphoma, one of the six mir-17-92 components antagonizes its oncogenic cooperation with c-Myc by promoting c-Myc-induced apoptosis.
    1. Structural Biology and Molecular Biophysics
    2. Microbiology and Infectious Disease

    A new topology of the HK97-like fold revealed in Bordetella bacteriophage by cryoEM at 3.5 Å resolution

    Xing Zhang et al.
    Cryo electron microscopy and structure-based mutagenesis reveal that the bacteriophage BPP-1 contains two of the three major recognized viral folds, one of which exhibits a new topology.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Structural basis for the assembly of the mitotic motor Kinesin-5 into bipolar tetramers

    Jessica E Scholey et al.
    The Bipolar Assembly domain of kinesin-5 comprises an anti-parallel four-helix bundle, which explains how kinesin-5 subunits assemble into bipolar tetramers with two motile ends that transmit forces while crosslinking and sliding adjacent microtubules during mitosis.
    1. Biochemistry and Chemical Biology
    2. Genetics and Genomics

    Genome-wide dynamics of Pol II elongation and its interplay with promoter proximal pausing, chromatin, and exons

    Iris Jonkers et al.
    The elongation rate of RNA Polymerase II varies greatly between and along genes, as this enzyme accelerates from stable pausing to rapid elongation within genes, and is influenced by CG-content, exons and chromatin.
    1. Chromosomes and Gene Expression
    2. Cancer Biology

    Global analysis of p53-regulated transcription identifies its direct targets and unexpected regulatory mechanisms

    Mary Ann Allen et al.
    The first global analysis of the effects of the transcription factor p53 on RNA synthesis illuminates several novels aspects of the molecular mechanism of action of this potent tumor suppressor.
    1. Biochemistry and Chemical Biology

    Prediction and characterization of enzymatic activities guided by sequence similarity and genome neighborhood networks

    Suwen Zhao et al.
    Genome neighborhood networks provide an efficient large-scale approach to mine metabolic pathway context for entire families of proteins and enzymes.

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