486 results found
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structure and mechanism of a phage-encoded SAM lyase revises catalytic function of enzyme family

    Xiaohu Guo, Annika Söderholm ... Maria Selmer
    The first structure of a bacteriophage-encoded S-adenosyl methionine degrading enzyme was solved and demonstrated to catalyze a unimolecular lyase reaction occurring at the domain interface of a trimeric structure.
    1. Ecology
    2. Microbiology and Infectious Disease

    A novel ATP dependent dimethylsulfoniopropionate lyase in bacteria that releases dimethyl sulfide and acryloyl-CoA

    Chun-Yang Li, Xiu-Juan Wang ... Yu-Zhong Zhang
    A novel dimethylsulfoniopropionate lyase was identified, which catalyzes dimethyl sulfide releasing by a new mechanism and is found in several bacterial lineages, revealing its important roles in global sulfur cycling.
    1. Medicine

    Gut microbe-targeted choline trimethylamine lyase inhibition improves obesity via rewiring of host circadian rhythms

    Rebecca C Schugar, Christy M Gliniak ... Jonathan Mark Brown
    Small molecule inhibitors of gut microbial choline trimethylamine lyase activity protect against obesity.
    1. Biochemistry and Chemical Biology

    Underground isoleucine biosynthesis pathways in E. coli

    Charles AR Cotton, Iria Bernhardsgrütter ... Arren Bar-Even
    Upon deletion of threonine deaminases, biosynthesis of isoleucine is rescued by two promiscuous reactions, one emerges under aerobic conditions and the other is naturally active under anaerobic conditions.
    1. Ecology

    Polysaccharide breakdown products drive degradation-dispersal cycles of foraging bacteria through changes in metabolism and motility

    Astrid Katharina Maria Stubbusch, Johannes M Keegstra ... Glen G D'Souza
    Degradation products of polysaccharides trigger partial population dispersal and alter cellular metabolism, shaping the marine biomass decomposition by foraging bacteria.
    1. Structural Biology and Molecular Biophysics

    Structures of topoisomerase V in complex with DNA reveal unusual DNA-binding mode and novel relaxation mechanism

    Amy Osterman, Alfonso Mondragón
    Structural and biochemical studies explain the topoisomerase V DNA relaxation mechanism by showing that it adopts an unusual conformation when bound to DNA that exposes the active site.
    1. Evolutionary Biology

    Robust and accurate prediction of residue–residue interactions across protein interfaces using evolutionary information

    Sergey Ovchinnikov, Hetunandan Kamisetty, David Baker
    Co-evolving residue pairs in the different components of a protein complex almost always make contact across the protein–protein interface, thus providing powerful restraints for the modeling of protein complexes.
    1. Immunology and Inflammation

    ACLY ubiquitination by CUL3-KLHL25 induces the reprogramming of fatty acid metabolism to facilitate iTreg differentiation

    Miaomiao Tian, Fengqi Hao ... Min Wei
    Metabolic flux analysis, biochemistry assays, and functional confirmation in mice show that the ubiquitination and degradation of ATP-citrate lyase (ACLY) mediated by CUL3-KLHL25 promotes the switch from fatty acid synthesis to fatty acid oxidation for iTreg differentiation.
    1. Medicine

    Gut microbial trimethylamine is elevated in alcohol-associated hepatitis and contributes to ethanol-induced liver injury in mice

    Robert N Helsley, Tatsunori Miyata ... Jonathan Mark Brown
    The gut microbe-derived metabolite trimethylamine (TMA) is elevated in patients with alcohol-associated hepatitis and inhibition of the gut microbial enzymes that produce TMA may serve as a tractable therapeutic strategy for the treatment of ethanol-induced liver injury.

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