372 results found
    1. Evolutionary Biology
    2. Plant Biology

    Evolution of alternative biosynthetic pathways for vitamin C following plastid acquisition in photosynthetic eukaryotes

    Glen Wheeler et al.
    Genomic evidence suggests that L-gulonolactone oxidase-the terminal enzyme in vitamin C synthesis, which has been repeatedly lost throughout animal evolution-was lost in plants and other photosynthetic eukaryotes following plastid acquisition.
    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. Genetics and Genomics

    Multiplexed measurement of variant abundance and activity reveals VKOR topology, active site and human variant impact

    Melissa A Chiasson et al.
    Human vitamin K epoxide reductase (VKOR) has a four transmembrane domain topology that supports the use of a homology model, enabling identification of active site residues and human variant impact.
    1. Immunology and Inflammation

    Dithranol targets keratinocytes, their crosstalk with neutrophils and inhibits the IL-36 inflammatory loop in psoriasis

    Theresa Benezeder et al.
    Targeting the differentiation regulators and/or AMPs of keratinocytes, rather than targeting immune cells, may be an alternative approach for topical anti-psoriatic treatment, an area with high need for new drugs.
    1. Cell Biology

    dPob/EMC is essential for biosynthesis of rhodopsin and other multi-pass membrane proteins in Drosophila photoreceptors

    Takunori Satoh et al.
    A membrane protein complex in the endoplasmic reticulum is a key factor for the biogenesis of multi-pass transmembrane proteins, including Rh1, and its loss causes retinal degeneration.
    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. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Symmetry breaking in reconstituted actin cortices

    Enas Abu Shah, Kinneret Keren
    A reconstituted system has been developed that self-organizes into dynamic actin cortices capable of spontaneous polarization, similar to the initial cortical polarization observed in cells during embryogenesis and development.
    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. Developmental Biology
    2. Neuroscience

    Neural retina-specific Aldh1a1 controls dorsal choroidal vascular development via Sox9 expression in retinal pigment epithelial cells

    So Goto et al.
    Neural retina-derived retinoic acids synthesized by Aldh1a1 control choroidal vascular development by regulating RPE-secreted VEGF.
    1. Evolutionary Biology
    2. Plant Biology

    Ascorbate Biosynthesis: A cross-kingdom history

    Alisdair R Fernie, Takayuki Tohge
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