4,025 results found
    1. Cell Biology
    2. Genetics and Genomics

    The ribosomal P-stalk couples amino acid starvation to GCN2 activation in mammalian cells

    Heather P Harding, Adriana Ordonez ... David Ron
    Genetic lesions that compromise the ribosome P-stalk implicate direct signalling from the ribosome to the translation initiation factor eIF2 kinase GCN2 in the cellular response to amino acid starvation.
    1. Neuroscience

    Electrocorticographic dissociation of alpha and beta rhythmic activity in the human sensorimotor system

    Arjen Stolk, Loek Brinkman ... Ivan Toni
    Direct cortical recordings in humans link the spectral structure of local field potentials to inhibition/disinhibition mechanisms coordinating sensorimotor neuronal populations during movement imagery.
    1. Microbiology and Infectious Disease
    2. Structural Biology and Molecular Biophysics

    Structural basis for diguanylate cyclase activation by its binding partner in Pseudomonas aeruginosa

    Gukui Chen, Jiashen Zhou ... Haihua Liang
    The diguanylate cyclase activity of SiaD is activated by its binding partner SiaC thourgh a dynamic mechanism of promoting the formation of active SiaD dimers.
    1. Structural Biology and Molecular Biophysics

    Cryo-EM structure of the Plasmodium falciparum 80S ribosome bound to the anti-protozoan drug emetine

    Wilson Wong, Xiao-chen Bai ... Sjors HW Scheres
    The molecular mechanism behind how emetine inhibits the ribosome of the human malaria parasite, along with structural details of the complex formed, is revealed at high resolution using cryo-electron microscopy.
    1. Structural Biology and Molecular Biophysics

    Mechanism of completion of peptidyltransferase centre assembly in eukaryotes

    Vasileios Kargas, Pablo Castro-Hartmann ... Alan John Warren
    Cryo-EM reveals how the central functional site of the ribosome is assembled and provides a framework to interpret the consequences of mutations linked to leukaemia-associated ribosomopathies.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Bacterial cell cycle control by citrate synthase independent of enzymatic activity

    Matthieu Bergé, Julian Pezzatti ... Patrick H Viollier
    A key enzyme of central energy metabolism, citrate synthase, regulates bacterial cell cycle progression at a very specific stage (S-phase) and independently of its enzymatic activity.
    1. Chromosomes and Gene Expression

    The TRRAP transcription cofactor represses interferon-stimulated genes in colorectal cancer cells

    Dylane Detilleux, Peggy Raynaud ... Dominique Helmlinger
    A transcriptional coactivator turns into a repressor at specific genes in colorectal cancer cells.
    1. Neuroscience

    Transient acidosis while retrieving a fear-related memory enhances its lability

    Jianyang Du, Margaret P Price ... Michael J Welsh
    Activating ASIC channels in the amygdala makes a single reminder more effective at rendering consolidated fear memories labile and susceptible to modification.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Plasmodium falciparum translational machinery condones polyadenosine repeats

    Slavica Pavlovic Djuranovic, Jessey Erath ... Sergej Djuranovic
    Adaptations in protein synthesis and mRNA surveillance machinery enabled the malaria-causing parasite P. falciparum to efficiently and accurately translate long polyA nucleotide runs into long poly-lysine peptides.
    1. Chromosomes and Gene Expression

    Successful transmission and transcriptional deployment of a human chromosome via mouse male meiosis

    Christina Ernst, Jeremy Pike ... Duncan T Odom
    Transmission of an entire human chromosome through the mouse male germline reveals an unexpectedly high tolerance of aneuploidy during male meiosis and results in accurate transcriptional deployment despite massive epigenetic remodeling during spermatogenesis.

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