203 results found
    1. Computational and Systems Biology
    2. Microbiology and Infectious Disease

    Transition between fermentation and respiration determines history-dependent behavior in fluctuating carbon sources

    Bram Cerulus et al.
    Live-cell microscopy and genome-wide screens reveal how slow transitions in metabolism can underlie metabolic memory, providing a model for organisms demonstrating similar history-dependent behaviour and routes to improve industrial microbes.
    1. Evolutionary Biology

    The last common ancestor of animals lacked the HIF pathway and respired in low-oxygen environments

    Daniel B Mills et al.
    Sponges and ctenophores lack hypoxia-inducible factors, suggesting that the metazoan last common ancestor could have lived aerobically under severe hypoxia and did not need to regulate its transcription in response to oxygen availability.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Tuberculosis-associated IFN-I induces Siglec-1 on tunneling nanotubes and favors HIV-1 spread in macrophages

    Maeva Dupont et al.
    Type-I interferon enriched microenvironment generated by Mycobacterium tuberculosis induces the Siglec-1 receptor expression in human macrophages, including on tunneling nanotubes, and contributes to the exacerbation of cell-to-cell transfer of HIV-1.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structural characterization of encapsulated ferritin provides insight into iron storage in bacterial nanocompartments

    Didi He et al.
    Encapsulin-associated ferritin proteins form metal-dependent decamers that are active as ferroxidase enzymes, but require encapsulation to form an iron store.
    1. Structural Biology and Molecular Biophysics

    Structural basis for the reaction cycle of DASS dicarboxylate transporters

    David B Sauer et al.
    Structures of multiple states of two dicarboxylate transporters explain the conformational changes needed for substrate import.
    1. Chromosomes and Gene Expression
    2. Immunology and Inflammation

    Major transcriptional changes observed in the Fulani, an ethnic group less susceptible to malaria

    Jaclyn E Quin et al.
    Examining gene expression in the Fulani, an ethnic group relatively protected from malaria, identifies a more transcriptionally reactive response in cells of the innate immune system.
    1. Genetics and Genomics

    The genome of an intranuclear parasite, Paramicrosporidium saccamoebae, reveals alternative adaptations to obligate intracellular parasitism

    C Alisha Quandt et al.
    Parasitic lineages of Rozellomycota are shaped by repeated and independent gene losses.
    1. Physics of Living Systems

    A microfluidic device for inferring metabolic landscapes in yeast monolayer colonies

    Zoran S Marinkovic et al.
    Metabolic gradients underlie gene expression patterns within spatially controlled expanding 2D microbial colonies.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Redox-dependent rearrangements of the NiFeS cluster of carbon monoxide dehydrogenase

    Elizabeth C Wittenborn et al.
    Structural analysis reveals large-scale conformational changes in the active site metallocluster of a CO2-fixing enzyme.
    1. Cell Biology
    2. Immunology and Inflammation

    Distinct mechanisms define murine B cell lineage immunoglobulin heavy chain (IgH) repertoires

    Yang Yang et al.
    The B-1a cell heavy chain antibody repertoire differs dramatically from the follicular and marginal zone B cell repertoire and is defined by distinct mechanisms driven by self antigens rather than antigens derived from the microbiota.

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