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    1. Microbiology and Infectious Disease

    Functional metagenomics-guided discovery of potent Cas9 inhibitors in the human microbiome

    Kevin J Forsberg, Ishan V Bhatt ... Harmit S Malik
    A high-throughput, activity-based selection identifies many phage-derived inhibitors of Cas9 from human fecal and oral metagenomes, with at least one inhibitor acting via a novel mechanism.
    1. Microbiology and Infectious Disease
    2. Structural Biology and Molecular Biophysics

    Structures of diverse poxin cGAMP nucleases reveal a widespread role for cGAS-STING evasion in host–pathogen conflict

    James B Eaglesham, Kacie L McCarty, Philip J Kranzusch
    Poxin enzymes are a diverse family of insect and viral 2′3′-cGAMP nucleases, which evolved from self-cleaving RNA virus accessory proteases.
    1. Evolutionary Biology
    2. Genetics and Genomics

    Structural screens identify candidate human homologs of insect chemoreceptors and cryptic Drosophila gustatory receptor-like proteins

    Richard Benton, Nathaniel J Himmel
    A new screening strategy for divergent homologs of insect odorant and gustatory receptors, based upon predicted three-dimensional structural similarity, unexpectedly identifies candidates in humans.
    1. Genetics and Genomics

    An efficient CRISPR-based strategy to insert small and large fragments of DNA using short homology arms

    Oguz Kanca, Jonathan Zirin ... Hugo J Bellen
    Optimization of homology donor DNA production and integration schemes facilitates homologous recombination in vivo and in cell culture in Drosophila melanogaster..
    1. Developmental Biology

    A nanobody toolbox to investigate localisation and dynamics of Drosophila titins and other key sarcomeric proteins

    Vincent Loreau, Renate Rees ... Dirk Görlich
    A collection of 22 nanobodies against 11 different Drosophila sarcomeric protein epitopes was generated, validated in stainings and for some transgenic fly lines were generated to monitor the dynamics of the sarcomeric proteins in muscles in vivo.
    1. Microbiology and Infectious Disease

    A single regulator NrtR controls bacterial NAD+ homeostasis via its acetylation

    Rongsui Gao, Wenhui Wei ... Youjun Feng
    Functional definition of NrtR and the discovery of its acetylation represents a first paradigm for linking protein acetylation to bacterial central NAD+ metabolism.
    1. Evolutionary Biology

    Coevolution of the CDCA7-HELLS ICF-related nucleosome remodeling complex and DNA methyltransferases

    Hironori Funabiki, Isabel E Wassing ... Thomas Carroll
    Coevolution analysis suggests that a DNA methylation-related role for the nucleosome remodeling ATPase HELLS and its activator CDCA7 was broadly inherited from the last eukaryotic common ancestor.
    1. Genetics and Genomics
    2. Microbiology and Infectious Disease

    A genome-phenome association study in native microbiomes identifies a mechanism for cytosine modification in DNA and RNA

    Weiwei Yang, Yu-Cheng Lin ... Laurence Ettwiller
    A novel DNA/RNA modifying enzyme catalyzing a previously unknown 5-carbamoyloxymethylcytosine modification has been discovered using a novel framework called Metagenomics Genome-Phenome Association.
    1. Neuroscience

    Synaptic transmission parallels neuromodulation in a central food-intake circuit

    Philipp Schlegel, Michael J Texada ... Michael J Pankratz
    Connectomic analysis demonstrates that a brain circuit, that may be conserved between flies and mammals, uses both fast synaptic transmission as well as peptidergic neuromodulation to connect chemosensory and endocrine systems.
    1. Structural Biology and Molecular Biophysics

    Molecular determinants of permeation in a fluoride-specific ion channel

    Nicholas B Last, Senmiao Sun ... Christopher Miller
    The ion-transport pathway of an unconventional bacterial fluoride channel is mapped out through combined crystallographic and functional experiments.