384 results found
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Dynamics of ribosomes and release factors during translation termination in E. coli

    Sarah Adio et al.
    Translation termination is a stochastic process that utilizes loosely coupled motions of its players to complete protein synthesis and release the newly synthesized nascent chain toward its cellular destination.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Cryo-EM visualization of the ribosome in termination complex with apo-RF3 and RF1

    Jesper Pallesen et al.
    Cryo-electron microscopy has been used to provide a structural interpretation of the complete action cycle of release factor 3 during translation termination, which includes a coordinated sequence of interactions with a class-I release factor and the ribosome.
    1. Chromosomes and Gene Expression

    Nonsense mRNA suppression via nonstop decay

    Joshua A Arribere, Andrew Z Fire
    Nonstop mRNA decay degrades mRNAs with a premature stop codon after such mRNAs are targeted by the nonsense-mediated decay machinery.
    1. Computational and Systems Biology

    Kinetic modeling predicts a stimulatory role for ribosome collisions at elongation stall sites in bacteria

    Michael A Ferrin, Arvind R Subramaniam
    Collision between ribosomes can cause dissociation of stalled ribosomes from messenger RNAs during the process of mRNA translation.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Mechanism of ribosome rescue by ArfA and RF2

    Gabriel Demo et al.
    Cryo-EM structures reveal the structural dynamics of ArfA*RF2-mediated rescue of stalled ribosomes.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Point of View: Is cell size a spandrel?

    Ariel Amir
    Analysis of experiments on bacteria suggests that the dependence of cell size on growth rate is not an adaptation but a causal consequence of a regulatory mechanism that controls DNA replication.
    1. Developmental Biology
    2. Chromosomes and Gene Expression

    Science Forum: Considerations when investigating lncRNA function in vivo

    Andrew R Bassett et al.
    We discuss the methods available to understand lncRNA function in vivo, and highlight important considerations that should be taken into account when designing such experiments.
  1. Point of View: Building for the future

    Hugh Pelham
    As the staff of the MRC Laboratory of Molecular Biology settle into their new building in Cambridge, its director Hugh Pelham explains the challenges of living up to its prestigious past.
    1. Chromosomes and Gene Expression
    2. Neuroscience

    The splicing regulator PTBP2 controls a program of embryonic splicing required for neuronal maturation

    Qin Li et al.
    PTBP2 ensures that adult protein variants are expressed only in mature neurons through regulation of alternative splicing during early neuronal development.

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