261 results found
    1. Microbiology and Infectious Disease

    Biosensor-integrated transposon mutagenesis reveals rv0158 as a coordinator of redox homeostasis in Mycobacterium tuberculosis

    Somnath Shee, Reshma T Veetil ... Amit Singh
    Genome-scale integration of transposon mutagenesis with a redox biosensor identified a hypothetical transcription factor- Rv0158 required to calibrate the growth, cytoplasmic redox potential, and respiration of Mycobacterium tuberculosis in response to metabolic switching from glucose to fatty acids.
    1. Structural Biology and Molecular Biophysics

    Structure of Mycobacterium tuberculosis cytochrome bcc in complex with Q203 and TB47, two anti-TB drug candidates

    Shan Zhou, Weiwei Wang ... Hongri Gong
    The three-dimensional structures of Mycobacterium tuberculosis cytochrome bcc in complex with the antituberculosis agents, Q203 and TB47, explain how these inhibitors suppress activity of the complex.
    1. Genetics and Genomics
    2. Microbiology and Infectious Disease

    Rapid adaptation of a complex trait during experimental evolution of Mycobacterium tuberculosis

    Tracy M Smith, Madison A Youngblom ... Caitlin S Pepperell
    Mycobacterium tuberculosis, which causes tuberculosis, can evolve rapidly in response to new environments by mutating genetic regulators that control multiple genes at once.
    1. Microbiology and Infectious Disease

    Pervasive translation in Mycobacterium tuberculosis

    Carol Smith, Jill G Canestrari ... Joseph T Wade
    Thousands of novel open-reading frames (ORFs) are translated in the bacterium Mycobacterium tuberculosis, including many short ORFs that are likely to contribute to cell fitness.
    1. Immunology and Inflammation
    2. Microbiology and Infectious Disease

    Identification of scavenger receptor B1 as the airway microfold cell receptor for Mycobacterium tuberculosis

    Haaris S Khan, Vidhya R Nair ... Michael U Shiloh
    Mycobacterium tuberculosis penetrates the airway mucosa through M cells via the mycobacterial virulence factor EsxA and the host M cell surface receptor scavenger receptor B1.
    1. Microbiology and Infectious Disease

    Rifampicin tolerance and growth fitness among isoniazid-resistant clinical Mycobacterium tuberculosis isolates from a longitudinal study

    Srinivasan Vijay, Nguyen Le Hoai Bao ... Nguyen Thuy Thuong
    Isoniazid resistance in Mycobacterium tuberculosis is linked to higher rifampicin tolerance, necessitating evaluation and potential adjustment of treatment regimens to combat emerging multi-drug resistant variants.
    1. Structural Biology and Molecular Biophysics

    Fidaxomicin jams Mycobacterium tuberculosis RNA polymerase motions needed for initiation via RbpA contacts

    Hande Boyaci, James Chen ... Elizabeth A Campbell
    Cryo-electron microscopy structures show how the clinically used antimicrobial fidaxomicin binds and inhibits Mycobacterium tuberculosis RNA polymerase by acting like a doorstop to jam the enzyme in an open conformation via the general transcription factor RbpA.
    1. Microbiology and Infectious Disease

    ODELAM, rapid sequence-independent detection of drug resistance in isolates of Mycobacterium tuberculosis

    Thurston Herricks, Magdalena Donczew ... John D Aitchison
    Time-lapse live cell imaging of single Mycobacterium tuberculosis bacilli growing into small colonies enables their rapid phenotypic characterization including anti-microbial resistance and heteroresistance in clinical isolates.
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    A tRNA modification in Mycobacterium tuberculosis facilitates optimal intracellular growth

    Francesca G Tomasi, Satoshi Kimura ... Matthew K Waldor
    Surveying Mycobacterium tuberculosis tRNA modification leads to identification of a modification promoting Mtb pathogenesis.
    1. Microbiology and Infectious Disease

    Flexible nitrogen utilisation by the metabolic generalist pathogen Mycobacterium tuberculosis

    Aleksandra Agapova, Agnese Serafini ... Luiz Pedro Sório de Carvalho
    Metabolomics and stable isotope labelling studies of virulent Mycobacterium tuberculosis reveal a de-centralised metabolic network able to utilise various amino acids as nitrogen sources to a better extent than ammonium.

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