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    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. Developmental Biology
    2. Immunology and Inflammation

    A single-cell survey of Drosophila blood

    Sudhir Gopal Tattikota et al.
    Single-cell RNA sequencing of Drosophila hemocytes in blood distinguishes various states within known blood cell types and implicates a novel role for fibroblast growth factor receptor signaling in inter-hemocyte crosstalk.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    The guide sRNA sequence determines the activity level of box C/D RNPs

    Andrea Graziadei et al.
    Integrative structural biology reveals a conformational equilibrium in the Box C/D methylation enzyme that regulates the extent of site-specific 2'-O-rRNA methylation in dependence of the RNA sequence.
    1. Biochemistry and Chemical Biology

    Characterisation of the biflavonoid hinokiflavone as a pre-mRNA splicing modulator that inhibits SENP

    Andrea Pawellek et al.
    Hinokiflavone is identified as a splicing modulator that blocks progression from spliceosome complex A to complex B and inhibits SUMO protease SENP1, causing hyper-SUMOylation affecting 6 U2 snRNP proteins.
    1. Structural Biology and Molecular Biophysics

    The near-atomic cryoEM structure of a flexible filamentous plant virus shows homology of its coat protein with nucleoproteins of animal viruses

    Xabier Agirrezabala et al.
    The high-resolution structure of a filamentous flexible plant virus shows that there is structural homology between its coat protein and the nucleoproteins of an unrelated group of enveloped RNA animal viruses.
    1. Biochemistry and Chemical Biology

    JMJD6 cleaves MePCE to release positive transcription elongation factor b (P-TEFb) in higher eukaryotes

    Schuyler Lee et al.
    JMJD6 helps BRD4 to recruit CDK9 to RNA Polymerase II by disrupting 7SK snRNP complex.
    1. Cancer Biology

    Synergistic interactions with PI3K inhibition that induce apoptosis

    Yaara Zwang et al.
    A geneome-scale shRNA screen identifies five genes whose suppression promotes cell death upon PI3K inhibition both in vitro and in vivo, thus suggesting potential combination therapies involving PI3K inhibition.
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    Dynamic interactions between the RNA chaperone Hfq, small regulatory RNAs, and mRNAs in live bacterial cells

    Seongjin Park et al.
    RNA chaperone Hfq dynamically binds various pools of cellular RNAs to execute different regulatory functions.
    1. Cancer Biology
    2. Chromosomes and Gene Expression

    A single H/ACA small nucleolar RNA mediates tumor suppression downstream of oncogenic RAS

    Mary McMahon et al.
    Cancer-associated changes in small nucleolar RNAs and site-specific pseudouridine modifications impact ribosome activity.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Dynamics and consequences of spliceosome E complex formation

    Joshua Donald Larson, Aaron A Hoskins
    Single molecule fluorescence analysis of spliceosome E complex formation reveals how tuning of U1 binding to the 5' SS facilitates efficient capture of the snRNP by pre-mRNAs.