3,222 results found
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    RNA-guided assembly of Rev-RRE nuclear export complexes

    Yun Bai et al.
    Tertiary folding of the Rev-response element (RRE) in HIV RNA ensures the rapid formation of the Rev-RRE viral ribonucleoprotein particle via a two-step process.
    1. Biochemistry and Chemical Biology

    Structure and reconstitution of yeast Mpp6-nuclear exosome complexes reveals that Mpp6 stimulates RNA decay and recruits the Mtr4 helicase

    Elizabeth V Wasmuth et al.
    The nuclear exosome cofactors Mpp6 and Rrp47 can stimulate exoribonuclease activities of the nuclear RNA exosome and recruit the Mtr4 helicase to promote helicase dependent RNA decay.
    1. Structural Biology and Molecular Biophysics
    2. Microbiology and Infectious Disease

    The export receptor Crm1 forms a dimer to promote nuclear export of HIV RNA

    David S Booth et al.
    The nuclear export receptor Crm1 cooperatively binds its HIV Rev-RRE cargo as a dimer using a species-specific interface that supports viral replication by enhancing nuclear export of HIV RNA.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Distinct and evolutionary conserved structural features of the human nuclear exosome complex

    Piotr Gerlach et al.
    Cryo-EM structure and biochemical characterization of the human nuclear exosome reveals its specific properties with respect to the yeast complex, underscoring the evolutionary conservation of the RNA-channeling mechanisms and hMTR4 helicase recruitment.
    1. Cell Biology
    2. Immunology and Inflammation

    IRAK2 directs stimulus-dependent nuclear export of inflammatory mRNAs

    Hao Zhou et al.
    The stimulation of lipopolysaccharides induced nuclear localization of IRAK2 to facilitate nuclear export of a specific subset of inflammation-related messenger RNAs for translation in murine macrophages.
    1. Chromosomes and Gene Expression

    YTH-RNA-binding protein prevents deleterious expression of meiotic proteins by tethering their mRNAs to nuclear foci

    Yuichi Shichino et al.
    A YTH-domain protein Mmi1 prevents deleterious expression of meiotic proteins by tethering their mRNAs to nuclear foci.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    The TRIM-NHL protein NHL-2 is a co-factor in the nuclear and somatic RNAi pathways in C. elegans

    Gregory M Davis et al.
    The RNA-binding protein NHL-2 is required for small-RNA mediated transgenerational epigenetic gene regulation.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    The translation elongation factor eEF1A1 couples transcription to translation during heat shock response

    Maria Vera et al.
    Eukaryotic translation elongation factor 1A1 controls the process of heat shock response, from transcriptional activation of the HSP70 gene, to HSP70 mRNA stabilization, nuclear export, and translation.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    A composite double-/single-stranded RNA-binding region in protein Prp3 supports tri-snRNP stability and splicing

    Sunbin Liu et al.
    Structural and functional analyses show how the spliceosomal Prp3 protein concomitantly binds double- and single- stranded regions in U4/U6 di-snRNAs and serves to stabilize the U4/U6•U5 tri-snRNP for splicing.

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