29 results found
    1. Microbiology and Infectious Disease

    A dedicated diribonucleotidase resolves a key bottleneck for the terminal step of RNA degradation

    Soo-Kyoung Kim et al.
    RNA degradation is completed through specific intermediates, such as diribonucleotides, which must be removed from the cells by a specific enzyme.
    1. Structural Biology and Molecular Biophysics

    Structural basis of mitochondrial translation

    Shintaro Aibara et al.
    Structural analysis of translating human mitoribosome illustrates elemental steps of translation in mitochondria.
    1. Biochemistry and Chemical Biology

    Non-enzymatic primer extension with strand displacement

    Lijun Zhou et al.
    Relying on RNA fragments derived from degradation or partial template copying, non-enzymatic primer extension with strand displacement offers a novel and prebiotically plausible approach to RNA self-replication.
    1. Chromosomes and Gene Expression
    2. Microbiology and Infectious Disease

    Viral miRNA adaptor differentially recruits miRNAs to target mRNAs through alternative base-pairing

    Carlos Gorbea et al.
    iRICC, a new method to identify RNA-RNA interactions in vivo, provides mechanistic insight into the function of a viral non-coding RNA.
    1. Chromosomes and Gene Expression

    Translesion polymerase kappa-dependent DNA synthesis underlies replication fork recovery

    Peter Tonzi et al.
    Translesion polymerase kappa promotes replication fork restart to maintain genome stability during conditions of nucleotide deprivation.
    1. Immunology and Inflammation
    2. Microbiology and Infectious Disease

    Diverse fates of uracilated HIV-1 DNA during infection of myeloid lineage cells

    Erik C Hansen et al.
    Uracil/adenine base pairs in HIV-1 DNA are attacked by the uracil base excision repair machinery in macrophages, which leads to HIV restriction and viral genome diversification by transcription-associated mutagenesis.
    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. Microbiology and Infectious Disease

    Temporal proteomic analysis of HIV infection reveals remodelling of the host phosphoproteome by lentiviral Vif variants

    Edward JD Greenwood et al.
    A comprehensive whole cell proteomic map describing expression time courses of >6,500 viral and cellular proteins during HIV infection identifies Vif-dependent antagonism of key cellular phosphatase PP2A.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Mechanisms of nucleotide selection by telomerase

    Matthew A Schaich et al.
    The roles of key telomerase active site residues were elucidated to determine how telomerase selects the correct from the incorrect nucleotide to maintain telomere integrity.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    3.3-Å resolution cryo-EM structure of human ribonucleotide reductase with substrate and allosteric regulators bound

    Edward J Brignole et al.
    Cryo-electron microscopy structures of human ribonucleotide reductase reveal molecular details of substrate selection and allosteric inhibition through assembly of its large subunit into a ring that excludes its small subunit.

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