127 results found
    1. Microbiology and Infectious Disease

    Human gut Bacteroides capture vitamin B12 via cell surface-exposed lipoproteins

    Aaron G Wexler et al.
    The human gut bacterial lipoprotein BtuG binds vitamin B12 with femtomolar affinity, can remove vitamin B12 from human intrinsic factor, and is required for commensal fitness in the gut.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Functional and structural characterization of an ECF-type ABC transporter for vitamin B12

    Joana A Santos et al.
    ECF-CbrT is a bacterial vitamin B12 transporter that is structurally different from the well-characterized transporter BtuCDF, yet has similar functional properties.
    1. Computational and Systems Biology
    2. Chromosomes and Gene Expression

    Metabolic network rewiring of propionate flux compensates vitamin B12 deficiency in C. elegans

    Emma Watson et al.
    The roundworm C. elegans transcriptionally activates five genes comprising an alternate propionate breakdown pathway when dietary vitamin B12 is low or when the canonical pathway is compromised.
    1. Chromosomes and Gene Expression
    2. Computational and Systems Biology

    Caenorhabditis elegans methionine/S-adenosylmethionine cycle activity is sensed and adjusted by a nuclear hormone receptor

    Gabrielle E Giese et al.
    Metabolic activity of the methionine/S-adenosylmethionine cycle is sensed and transcriptionally regulated by a nuclear hormone receptor in Caenorhabditis elegans in order to maintain metabolic homeostasis in a tightly controlled regime.
    1. Cell Biology

    A conserved LDL-receptor motif regulates corin and CD320 membrane targeting in polarized renal epithelial cells

    Ce Zhang et al.
    A conserved motif in corin and CD320 LDL receptor modules regulates specific apical trafficking in polarized renal epithelial cells.
    1. Epidemiology and Global Health
    2. Microbiology and Infectious Disease

    Alternative splicing of coq-2 controls the levels of rhodoquinone in animals

    June H Tan et al.
    The switch from ubiquinone to rhodoquinone synthesis that is required for parasitic helminths to survive in anaerobic host tissues is due to alternative splicing of polyprenyltransferase COQ-2.
    1. Ecology

    Transcriptome analysis illuminates the nature of the intracellular interaction in a vertebrate-algal symbiosis

    John A Burns et al.
    The endosymbiosis between an alga and the spotted salamander shows several parallels to invertebrate-algal symbioses as well as to pathogen associations in vertebrate animals.
    1. Developmental Biology

    Upregulation of neurovascular communication through filamin abrogation promotes ectopic periventricular neurogenesis

    Shauna L Houlihan et al.
    Analyses based on the mouse model of a human genetic disease reveal that the neuron production of cerebral tissue can be boosted by escalated signaling between neural progenitors and the vasculature.
    1. Microbiology and Infectious Disease

    Changes in the genetic requirements for microbial interactions with increasing community complexity

    Manon Morin et al.
    Analysis of the global genetic requirements and gene expression changes in E. coli in the presence of a simple microbiome revealed pairwise and higher-order interactions, and underlying molecular mechanisms.
    1. Developmental Biology

    NEIL1 and NEIL2 DNA glycosylases protect neural crest development against mitochondrial oxidative stress

    Dandan Han et al.
    NEIL DNA glycosylases are required to counteract oxidative base damages within the mitochondrial genome to safeguard neural crest cell differentiation.

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