38 results found
    1. Biochemistry and Chemical Biology

    B4GAT1 is the priming enzyme for the LARGE-dependent functional glycosylation of α-dystroglycan

    Jeremy L Praissman, David H Live ... Lance Wells
    The correct enzymatic activity of a previously misnamed enzyme is defined, placing the enzyme upstream of LARGE in building functional O-mannose structures on α-dystroglycan that are disrupted in multiple forms of congenital muscular dystrophy.
    1. Biochemistry and Chemical Biology

    The glucuronyltransferase B4GAT1 is required for initiation of LARGE-mediated α-dystroglycan functional glycosylation

    Tobias Willer, Kei-ichiro Inamori ... Kevin P Campbell
    Post-phosphoryl modification of α-dystroglycan requires the glucuronyltransferase B4GAT1; this enzyme synthesizes the acceptor glycan that serves as a primer for the glycosyltransferase LARGE to synthesize the laminin-binding glycan.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Golgi self-correction generates bioequivalent glycans to preserve cellular homeostasis

    Haik Mkhikian, Christie-Lynn Mortales ... Michael Demetriou
    Structurally dissimilar N-glycans can be functionally equivalent, and are produced via a self-correcting feature of the Golgi.
    1. Computational and Systems Biology

    Proteome-wide systems genetics identifies UFMylation as a regulator of skeletal muscle function

    Jeffrey Molendijk, Ronnie Blazev ... Benjamin L Parker
    The maintenance of skeletal muscle function improves the quality of life, and therefore understanding how changes in the genome drive changes in the skeletal muscle proteome has revealed novel regulators of muscle physiology.
    1. Developmental Biology
    2. Medicine

    CHARGE syndrome modeling using patient-iPSCs reveals defective migration of neural crest cells harboring CHD7 mutations

    Hironobu Okuno, Francois Renault Mihara ... Hideyuki Okano
    Neural crest cells differentiated from patient-derived cells with mutations in the chromatin remodeler CHD7 show defective delamination, migration and motility in vitro, and defective migration in chick embryos.
    1. Neuroscience

    Inhibitory CCK+ basket synapse defects in mouse models of dystroglycanopathy

    Jennifer N Jahncke, Daniel S Miller ... Kevin M Wright
    Loss of functional dystroglycan disrupts the formation and function of CCK+/CB1R+ inhibitory synapses in hippocampal CA1, resulting in reduced seizure thresholds in mouse models of dystroglycanopathy.
    1. Computational and Systems Biology
    2. Evolutionary Biology

    Deep evolutionary analysis reveals the design principles of fold A glycosyltransferases

    Rahil Taujale, Aarya Venkat ... Natarajan Kannan
    Deep mining of GT-A fold sequences provides an evolutionary framework for investigating complex relationships connecting GT-A fold sequence, structure, function and regulation.
    1. Neuroscience

    Dystroglycan is a scaffold for extracellular axon guidance decisions

    L Bailey Lindenmaier, Nicolas Parmentier ... Kevin M Wright
    Dystroglycan interacts with multiple partners, including the transmembrane receptor Celsr3, to regulate axon tract formation throughout the developing nervous system.
    1. Biochemistry and Chemical Biology

    The functional O-mannose glycan on α-dystroglycan contains a phospho-ribitol primed for matriglycan addition

    Jeremy L Praissman, Tobias Willer ... Lance Wells
    Disruption of the LG domain-binding phospho-ribitol-containing O-mannose structures on α-dystroglycan results in congenital muscular dystrophy.
    1. Cancer Biology
    2. Cell Biology

    The ESRP1-GPR137 axis contributes to intestinal pathogenesis

    Lukas Franz Mager, Viktor Hendrik Koelzer ... Philippe Krebs
    ESRP1 is central to intestinal barrier integrity in mice and humans and alterations in ESRP1 function or expression contribute to intestinal pathology, partly through modified expression of ESRP1-specific GPR137 isoforms.

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