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    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    A systematically-revised ribosome profiling method for bacteria reveals pauses at single-codon resolution

    Fuad Mohammad et al.
    With the removal of confounding artifacts, ribosome profiling can yield insight into the mechanism of protein synthesis in bacteria at high resolution.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Cryo-EM structure of a late pre-40S ribosomal subunit from Saccharomyces cerevisiae

    André Heuer et al.
    Near atomic resolution of late 40S ribosomal subunit assembly by cryo-EM reveals immature rRNA active sites stabilized by biogenesis factors.
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    Discovery of a small molecule that inhibits bacterial ribosome biogenesis

    Jonathan M Stokes et al.
    The anticonvulsant drug lamotrigine inhibits bacterial ribosome biogenesis and reveals an unexplored role for initiation factor 2 (IF2) in ribosome assembly.
    1. Biochemistry and Chemical Biology

    Ribosomes slide on lysine-encoding homopolymeric A stretches

    Kristin S Koutmou et al.
    Ribosomes undergo an unanticipated movement (‘sliding’) while translating homopolymeric A sequences, which provides a biochemical rationale for the observation that iterated AAA codons are under-represented in gene-coding sequences.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Real-time observation of signal recognition particle binding to actively translating ribosomes

    Thomas R Noriega et al.
    The signal recognition particle only stably engages translating ribosome nascent-chain complexes exposing a functional signal sequence.
    1. Structural Biology and Molecular Biophysics

    The CryoEM structure of the Saccharomyces cerevisiae ribosome maturation factor Rea1

    Piotr Sosnowski et al.
    The high-resolution structure of Rea1, an essential ribosome maturation factor in Saccharomyces cerevisiae, explains how the ATPase domain is regulated and reveals the linker domain, the mechanical element carrying out ribosome remodeling.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    The shape of the bacterial ribosome exit tunnel affects cotranslational protein folding

    Renuka Kudva et al.
    Proteins can fold deeper inside ribosomes with an enlarged exit tunnel.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    A combined quantitative mass spectrometry and electron microscopy analysis of ribosomal 30S subunit assembly in E. coli

    Dipali G Sashital et al.
    Comprehensive structural and compositional characterization of the in vivo 30S ribosomal assembly landscape reveals parallel pathways for 3′-domain formation and a previously unknown role for the assembly factor RimP.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    The Rqc2/Tae2 subunit of the ribosome-associated quality control (RQC) complex marks ribosome-stalled nascent polypeptide chains for aggregation

    Ryo Yonashiro et al.
    Rqc2-mediated modification of ribosome-stalled nascent chains with "CAT tails" promotes formation of insoluble aggregates suggesting that proteins can become specifically marked for aggregation.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Cdc48/p97 promotes degradation of aberrant nascent polypeptides bound to the ribosome

    Rati Verma et al.
    The enzyme that collaborates with ubiquitin ligases to promote the release of defective polypeptides from stalled ribosomes in a process named ribosome-associated degradations has been identified as the ATPase Cdc48.