11 results found
    1. Cell Biology

    Splicing factors Sf3A2 and Prp31 have direct roles in mitotic chromosome segregation

    Claudia Pellacani et al.
    Extensive cytological and biochemical analyses show that the conserved Sf3A2 and Prp31 splicing factors bind microtubules and the Ndc80 complex, playing direct mitotic functions in both Drosophila and human mitosis.
    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.
    1. Neuroscience

    Stereotyped transcriptomic transformation of somatosensory neurons in response to injury

    Minh Q Nguyen et al.
    Peripheral injury induces a programmed but reversible transformation of gene expression in somatosensory neurons providing a mechanism to regulate sensory input during wound healing.
    1. Microbiology and Infectious Disease

    Exploiting CRISPR-Cas to manipulate Enterococcus faecalis populations

    Karthik Hullahalli et al.
    Conflicts between CRISPR-Cas systems and antibiotic resistance plasmids can be exploited to selectively eliminate antibiotic resistance from Enterococcus faecalis populations.
    1. Structural Biology and Molecular Biophysics

    Crystal structure of human U1 snRNP, a small nuclear ribonucleoprotein particle, reveals the mechanism of 5′ splice site recognition

    Yasushi Kondo et al.
    The complete architecture of human spliceosomal U1 snRNP and its interaction with the 5′ splice site of pre-mRNA are described in atomic detail.
    1. Chromosomes and Gene Expression

    RNA polymerase II stalling at pre-mRNA splice sites is enforced by ubiquitination of the catalytic subunit

    Laura Milligan et al.
    Ubiquitination close to the active site of RNAPII occurs in response to RNA processing events and is linked to transcriptional pausing, which is released following Bre5-Ubp3 mediated deubiquitination associated with the nascent transcript.
    1. Genetics and Genomics

    Spliceosome factors target timeless (tim) mRNA to control clock protein accumulation and circadian behavior in Drosophila

    Iryna Shakhmantsir et al.
    Alternative splicing provides a mechanism to maintain oscillations of the circadian clock.
    1. Microbiology and Infectious Disease

    Rotavirus VP3 targets MAVS for degradation to inhibit type III interferon expression in intestinal epithelial cells

    Siyuan Ding et al.
    Rotavirus infection induces phosphorylation and proteasomal degradation of MAVS to suppress host antiviral interferon signaling.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Single molecule analysis reveals reversible and irreversible steps during spliceosome activation

    Aaron A Hoskins et al.
    Single molecule experiments reveal competition between spliceosome activation and the discard of the triple small nuclear ribonucleoprotein complex.
    1. Cancer Biology

    Musashi proteins are post-transcriptional regulators of the epithelial-luminal cell state

    Yarden Katz et al.
    Genetic mouse models and human cell lines show that Musashi proteins promote an epithelial/luminal state and inhibit epithelial–mesenchymal transition (EMT), and genome-wide maps of translational regulatory targets connect Musashi proteins to an epithelial alternative splicing program and to the regulation of EMT.

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