76 results found
    1. Cell Biology
    2. Evolutionary Biology

    Chimeric origins of ochrophytes and haptophytes revealed through an ancient plastid proteome

    Richard G Dorrell et al.
    An in silico reconstruction of a chloroplast that existed hundreds of millions of years ago casts new insights in the evolutionary processes, endosymbioses and chimerism events that shape the origin of plastids.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    A novel N-terminal extension in mitochondrial TRAP1 serves as a thermal regulator of chaperone activity

    James R Partridge et al.
    Cytosolic and organellar Hsp90s from higher eukaryotes have evolved a variable, and environmentally responsive N-terminal extension to regulate their activity.
    1. Developmental Biology

    Wnt3 distribution in the zebrafish brain is determined by expression, diffusion and multiple molecular interactions

    Sapthaswaran Veerapathiran et al.
    Wnt3 accomplishes long-range distribution by extracellular diffusion controlled by expression, tissue morphology, interactions with heparan sulfate proteoglycans, and co-receptor-mediated receptor binding to regulate brain development in zebrafish embryos.
    1. Cell Biology
    2. Developmental Biology

    R-spondins engage heparan sulfate proteoglycans to potentiate WNT signaling

    Ramin Dubey et al.
    Heparan Sulfate Proteoglycans function as receptors for the R-spondins, a family of growth factors that amplify the strength of WNT signaling during development and in adult stem cells.
    1. Developmental Biology
    2. Neuroscience

    Leptin suppresses development of GLP-1 inputs to the paraventricular nucleus of the hypothalamus

    Jessica E Biddinger et al.
    Leptin acts cell autonomously on brainstem neurons that express GLP-1 to suppress development of excitatory viscerosensory inputs to the hypothalamus.
    1. Developmental Biology

    SMOC can act as both an antagonist and an expander of BMP signaling

    J Terrig Thomas et al.
    SMOC inhibits BMP signaling locally, but also expands the range of BMP signaling by competing for heparan sulfate binding sites.
    1. Cell Biology
    2. Developmental Biology

    R-spondins can potentiate WNT signaling without LGRs

    Andres M Lebensohn, Rajat Rohatgi
    R-spondins 2 and 3 can potentiate WNT signaling in the absence of LGRs through interactions with ZNRF3/RNF43 E3 ubiquitin ligases and heparan sulfate proteoglycans, defining two alternative modes of R-spondin-mediated signaling.
    1. Cell Biology
    2. Evolutionary Biology

    The regulation of oocyte maturation and ovulation in the closest sister group of vertebrates

    Shin Matsubara et al.
    Oocyte maturation and ovulation in the sister group of vertebrates, Ciona intestinalis Type A, are triggered by Ci-VP, the Ciona homolog of a typical neruopeptide, vasopressin.
    1. Developmental Biology
    2. Neuroscience

    Regulation of retinal axon growth by secreted Vax1 homeodomain protein

    Namsuk Kim et al.
    Secreted Vax1 homeodomain protein supports the development of optic chiasm by directly acting at the retinal ganglion cell axon.
    1. Medicine

    Reprogramming of bone marrow myeloid progenitor cells in patients with severe coronary artery disease

    Marlies P Noz et al.
    In patients with coronary artery disease, bone marrow myeloid progenitor cells are reprogrammed towards myeloid skewing and inflammatory activation.

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