948 results found
    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, Rachel Green, Allen R Buskirk
    With the removal of confounding artifacts, ribosome profiling can yield insight into the mechanism of protein synthesis in bacteria at high resolution.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    mRNA-programmed translation pauses in the targeting of E. coli membrane proteins

    Nir Fluman, Sivan Navon ... Yitzhak Pilpel
    Translation pauses occur in strategic positions to facilitate the production of properly folded membrane proteins in bacteria.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structural and mutational analysis of the ribosome-arresting human XBP1u

    Vivekanandan Shanmuganathan, Nina Schiller ... Roland Beckmann
    Two integrated approaches shed light on how XBP1 arrest peptide induces intermediate level of translational pausing and identify hotspot positions to make it stronger.
    1. Microbiology and Infectious Disease

    Loss of N1-methylation of G37 in tRNA induces ribosome stalling and reprograms gene expression

    Isao Masuda, Jae-Yeon Hwang ... Ya-Ming Hou
    Biochemical and genome-wide analysis demonstrates that m1G37 is important for tRNA aminoacylation and for the entire elongation cycle of protein synthesis.
    1. Microbiology and Infectious Disease

    A serine sensor for multicellularity in a bacterium

    Arvind R Subramaniam, Aaron DeLoughery ... Yunrong Chai
    Biofilm formation by Bacillus subtilis relies on a sensing mechanism for the amino acid serine that does not depend on a dedicated protein or RNA.
    1. Chromosomes and Gene Expression
    2. Structural Biology and Molecular Biophysics

    mRNA stem-loops can pause the ribosome by hindering A-site tRNA binding

    Chen Bao, Sarah Loerch ... Dmitri N Ermolenko
    By sterically hindering tRNA binding and inhibiting translation elongation, mRNA stem-loops can modulate gene expression.
    1. Chromosomes and Gene Expression
    2. Neuroscience

    GTPBP1 resolves paused ribosomes to maintain neuronal homeostasis

    Markus Terrey, Scott I Adamson ... Susan L Ackerman
    The translational GTPase GTPBP1 prevents ribosome stalling during tRNA deficiency and is necessary for neuronal survival.
    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. Biochemistry and Chemical Biology

    Ribosomes slide on lysine-encoding homopolymeric A stretches

    Kristin S Koutmou, Anthony P Schuller ... Rachel Green
    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. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Decapping factor Dcp2 controls mRNA abundance and translation to adjust metabolism and filamentation to nutrient availability

    Anil Kumar Vijjamarri, Xiao Niu ... Alan G Hinnebusch
    The yeast mRNA decapping enzyme Dcp1/Dcp2 repressses many genes whose products are required on poor carbon or nitrogen sources in nutrient-replete cells by mRNA decapping and degradation or translational repression, adding post-transcriptional controls to the transcriptional repression of these functions.

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