1,952 results found
    1. Microbiology and Infectious Disease
    2. Structural Biology and Molecular Biophysics

    Structural basis for potent and broad inhibition of HIV-1 RT by thiophene[3,2-d]pyrimidine non-nucleoside inhibitors

    Yang Yang et al.
    High-resolution structures of HIV-1 RT in complex with two newly developed non-nucleoside inhibitors explain how they retain antiviral activities against drug-resistant RT mutants with considerably reduced susceptibility to rilpivirine.
    1. Evolutionary Biology

    Moderate nucleotide diversity in the Atlantic herring is associated with a low mutation rate

    Chungang Feng et al.
    The Atlantic herring has the lowest mutation rate yet estimated in a vertebrate species and this partially explains its moderate nucleotide diversity given the large population size.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Ric-8A, a G protein chaperone with nucleotide exchange activity induces long-range secondary structure changes in Gα

    Ravi Kant et al.
    Hydrogen-Deuterium exchange experiments show that Ric-8A induces similar dynamic changes in the structure of Gα as G protein-coupled receptors, yet protects a larger surface of the nucleotide-binding Ras domain.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structural basis of nucleoside and nucleoside drug selectivity by concentrative nucleoside transporters

    Zachary Lee Johnson et al.
    Studies of the substrate selectivity of concentrative nucleoside transporters provide proof of principle for structure-based improvement of drug delivery by these transporters.
    1. Microbiology and Infectious Disease

    Silencing cryptic specialized metabolism in Streptomyces by the nucleoid-associated protein Lsr2

    Emma J Gehrke et al.
    In Streptomyces, the nucleoid-associated protein Lsr2 functions as a xenogenic silencer of foreign genes, and as a metabolic gatekeeper, repressing expression of both cryptic and well-studied specialized metabolic biosynthetic clusters.
    1. Microbiology and Infectious Disease

    RNA virus attenuation by codon pair deoptimisation is an artefact of increases in CpG/UpA dinucleotide frequencies

    Fiona Tulloch et al.
    Attenuating candidate live virus vaccines by incorporating unfavoured codon pairs to reduce translation efficiency is actually mediated though changes in frequencies of CpG and UpA dinucleotides, which make viruses more visible to the innate immune system.
    1. Structural Biology and Molecular Biophysics

    Structural basis for mammalian nucleotide sugar transport

    Shivani Ahuja, Matthew R Whorton
    Crystal structures of the mouse CMP-sialic acid transporter in complex with both CMP and CMP-sialic acid reveal the mechanisms of substrate selectivity and transport.
    1. Structural Biology and Molecular Biophysics

    Ligand discrimination and gating in cyclic nucleotide-gated ion channels from apo and partial agonist-bound cryo-EM structures

    Jan Rheinberger et al.
    High resolution SthK channel cryo-EM structures in different ligand-bound states combined with single-channel functional data in the same conditions constrain a gating mechanism for CNG channels.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Diversity and plasticity in Rab GTPase nucleotide release mechanism has consequences for Rab activation and inactivation

    Lars Langemeyer et al.
    Analysis of multiple guanine exchange factors shows that Rab activation can occur via a number of mechanistically distinct GDP-release pathways.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Cap-proximal nucleotides via differential eIF4E binding and alternative promoter usage mediate translational response to energy stress

    Ana Tamarkin-Ben-Harush et al.
    Differential eIF4E binding to transcription initiation nucleotides and alternative promoter usage of eIF1A, PABP and other genes are involved in the response of the translation machinery to energy stress.

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