4,732 results found
    1. Chromosomes and Gene Expression
    2. Microbiology and Infectious Disease

    sRNA-mediated activation of gene expression by inhibition of 5'-3’ exonucleolytic mRNA degradation

    Sylvain Durand et al.
    Small regulatory RNAs are able to modulate mRNA degradation rates by controlling access to the 5' end of mRNAs in bacteria.
    1. Cell Biology

    Genome-wide interrogation of extracellular vesicle biology using barcoded miRNAs

    Albert Lu et al.
    A screen using artificially barcoded, exosomal microRNAs, paired with CRISPR guide RNAs, helped identify new players in multivesicular endosome exocytosis and a role for Wnt signaling.
    1. Chromosomes and Gene Expression

    Importance of miRNA stability and alternative primary miRNA isoforms in gene regulation during Drosophila development

    Li Zhou et al.
    Selective degradation of mature miRNAs shapes temporal miRNA expression patterns and is important for proper regulation of target genes to support normal development of Drosophila embryos.
    1. Cancer Biology

    Diagnostic potential for a serum miRNA neural network for detection of ovarian cancer

    Kevin M Elias et al.
    Application of machine learning to serum miRNA profiles generated through next generation sequencing identifies a biologically relevant miRNA signature which can be deployed as a qPCR test to assist the diagnosis of epithelial ovarian cancer.
    1. Human Biology and Medicine

    KRAS-dependent sorting of miRNA to exosomes

    Diana J Cha et al.
    In isogenically matched colorectal cancer (CRC) cell lines, mutant KRAS alters the composition of secreted miRNAs in extracellular vesicles that can then transfer repressive activity to wild type cells.
    1. Plant Biology

    Compensatory sequence variation between trans-species small RNAs and their target sites

    Nathan R Johnson et al.
    Superfamilies of trans-species small RNAs from the parasitic plant Cuscuta have sequence variation that correspond to synonymous site variation in host plant target mRNAs.
    1. Cell Biology
    2. Developmental Biology

    Endogenous siRNAs promote proteostasis and longevity in germline-less Caenorhabditis elegans

    Moran Cohen-Berkman et al.
    Endo-siRNAs slow down the rate of aging and enable the maintenance of a responsive heat shock response in aging germline-less Caenorhabditis elegans.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Structure and topology around the cleavage site regulate post-translational cleavage of the HIV-1 gp160 signal peptide

    Erik Lee Snapp et al.
    Signal-peptide cleavage of HIV-1 envelope glycoprotein is delayed because of alpha-helical structure covering the cleavage site, effecting early cleavage alters the folding pathway and resulting in localized misfolding and reduced viral fitness.
    1. Chromosomes and Gene Expression
    2. Neuroscience

    Satb2 determines miRNA expression and long-term memory in the adult central nervous system

    Clemens Jaitner et al.
    The genome-organizer Satb2 has a key role in memory formation by modulating availability of miRNAs that control the function of synapses.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structural determinants of nuclear export signal orientation in binding to exportin CRM1

    Ho Yee Joyce Fung et al.
    Some nuclear export signals (NESs) bind to the transport receptor CRM1 in the opposite orientation to those previously studied.

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