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    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Filament formation by metabolic enzymes is a specific adaptation to an advanced state of cellular starvation

    Ivana Petrovska et al.
    A starvation-induced drop in cytosolic pH promotes assembly of budding yeast glutamine synthetase into enzymatically inactive filaments that function as enzyme storage depots.
    1. Structural Biology and Molecular Biophysics

    Ensemble cryoEM elucidates the mechanism of insulin capture and degradation by human insulin degrading enzyme

    Zhening Zhang et al.
    Integrative structural analyses of human insulin degradingenzyme (IDE) reveal how IDE selectively degrades peptides that form toxicaggregates, which guides IDE-based therapeutic innovations to treat diabetesand Alzheimer's disease.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Light-regulated allosteric switch enables temporal and subcellular control of enzyme activity

    Mark Shaaya et al.
    Light-sensitive allosteric switch module, a broadly applicable protein engineering method, is used for the regulation of protein activity with tight temporal control and spatial precision.
    1. Structural Biology and Molecular Biophysics

    Enzyme activity and selectivity filter stability of ancient TRPM2 channels were simultaneously lost in early vertebrates

    Iordan Iordanov et al.
    Invertebrate TRPM2 channels have stable pores but act as chanzymes that hydrolyze their activating ligand ADP ribose (ADPR), whereas vertebrate TRPM2 channels are catalytically dead but undergo pore inactivation.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Transcriptomic and proteomic landscape of mitochondrial dysfunction reveals secondary coenzyme Q deficiency in mammals

    Inge Kühl et al.
    Comparative -omic analyses of five knockout mouse strains with disrupted mitochondrial DNA expression at different levels provide a high quality resource of altered gene expression patterns that reveal several common secondary patophysiological changes of mitochondrial dysfunction.
    1. Biochemistry and Chemical Biology

    The dynamic interplay of host and viral enzymes in type III CRISPR-mediated cyclic nucleotide signalling

    Januka S Athukoralage et al.
    The dynamic interplay between type III CRISPR enzymes governs cyclic nucleotide levels and infection outcomes in virus-host conflict.
    1. Biochemistry and Chemical Biology

    Mitochondrial ClpX activates an essential biosynthetic enzyme through partial unfolding

    Julia R Kardon et al.
    The mitochondrial protein unfoldase ClpX activates the first enzyme in heme biosynthesis, ALAS, by targeted unfolding that gates access of cofactor to the ALAS active site.
    1. Evolutionary Biology
    2. Genetics and Genomics

    Mutations that improve efficiency of a weak-link enzyme are rare compared to adaptive mutations elsewhere in the genome

    Andrew B Morgenthaler et al.
    Mutations elsewhere in the genome play critical roles in improving fitness during amplification and divergence of a gene encoding a weak-link enzyme whose inefficiency limits growth rate.
    1. Biochemistry and Chemical Biology

    B4GAT1 is the priming enzyme for the LARGE-dependent functional glycosylation of α-dystroglycan

    Jeremy L Praissman et al.
    The correct enzymatic activity of a previously misnamed enzyme is defined, placing the enzyme upstream of LARGE in building functional O-mannose structures on α-dystroglycan that are disrupted in multiple forms of congenital muscular dystrophy.