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    A tale of two globins: hemoglobin and myoglobin and oxygen transport
    Hemoglobin and myoglobin are two related proteins important in oxygen binding and transport to cells. However, unlike myoglobin, hemoglobin exhibits positive cooperativity in oxygen binding. Oxygen...
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    Molecular Basis of Sickle Cell Disease
    This multi part case on hemoglobin structure as it relates to oxygen binding and sickle cell disease focuses on utilizing bioinformatics and molecular visualization tools to learn about the sickle...

    Keywords: Hemoglobinmolecular visualization and analysisintroductory bioinformaticssickle cell diseasePDBMolecular Case Studyoxygen bindingmyoglobinmolecular literacy3D protein structuresstructural representations

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    The Science Behind the ACTN3 Polymorphism
    A common polymorphism in the alpha-actinin-3 (ACTN3) gene results in the lack of ACTN3 protein expression in fast twitch muscle fibers in ~16% of the human population (1). This genetic change has...

    Keywords: protein structure and functionhuman genetic variationskeletal muscle physiology

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