430 results found
    1. Chromosomes and Gene Expression
    2. Computational and Systems Biology

    TASEP modelling provides a parsimonious explanation for the ability of a single uORF to derepress translation during the integrated stress response

    Dmitry E Andreev et al.
    A model reveals how translation of an mRNA leader could provide resistance to global downregulation of translation.
    1. Computational and Systems Biology
    2. Microbiology and Infectious Disease

    Operon mRNAs are organized into ORF-centric structures that predict translation efficiency

    David H Burkhardt et al.
    Operonic mRNAs in bacteria are comprised of ORF (open reading frame)-wide units of secondary structure, which are intrinsically distinct between adjacent ORFs and encode a rough blueprint for ORF-specific translation efficiency.
    1. Chromosomes and Gene Expression

    Gene regulation: A transcriptional switch controls meiosis

    A Elizabeth Hildreth, Karen M Arndt
    A key protein involved in the segregation of meiotic chromosomes is produced 'just in time' by the regulated expression of two mRNA isoforms.
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    1. Computational and Systems Biology
    2. Chromosomes and Gene Expression

    Thousands of novel translated open reading frames in humans inferred by ribosome footprint profiling

    Anil Raj et al.
    Over 7,000 novel translated sequences have been identified from human cells, including several hundred in annotated noncoding RNA, pseudogenes and de novo assembled transcripts.
    1. Chromosomes and Gene Expression

    Kinetochore inactivation by expression of a repressive mRNA

    Jingxun Chen et al.
    Rather than being a protein coding unit, an mRNA molecule can serve a purely regulatory function to inhibit protein synthesis of its corresponding gene.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Guanidine hydrochloride reactivates an ancient septin hetero-oligomer assembly pathway in budding yeast

    Courtney R Johnson et al.
    A naturally-occurring small molecule acts as a chemical chaperone in vivo to alter the folding of a budding yeast septin and promote an oligomerization pathway that was lost during evolution.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Distinct roles for S. cerevisiae H2A copies in recombination and repeat stability, with a role for H2A.1 threonine 126

    Nealia CM House et al.
    Despite differing by only one amino acid in the C-terminal tail, copy 1 of yeast histone 2A has a repair-specific role not shared by copy 2.
    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 et al.
    By sterically hindering tRNA binding and inhibiting translation elongation, mRNA stem-loops can modulate gene expression.
    1. Microbiology and Infectious Disease

    Dominant Vibrio cholerae phage exhibits lysis inhibition sensitive to disruption by a defensive phage satellite

    Stephanie G Hays, Kimberley D Seed
    Genetic and molecular analyses identify and characterize an evolutionary battle over lysis timing wherein a bacteriophage delays lysis through lysis inhibition while a defensive phage satellite accelerates lysis.
    1. Microbiology and Infectious Disease
    2. Physics of Living Systems

    The transpeptidase PBP2 governs initial localization and activity of the major cell-wall synthesis machinery in E. coli

    Gizem Özbaykal et al.
    For initiation of cell-wall insertion, the cross-linking enzyme PBP2 stably binds to a component of the cell envelope that is different from MreB filaments.

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