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    Biology A (Salters-Nuffield) A-Level

    Troponin

    What Troponin means in Biology A (Salters-Nuffield) A-Level, as defined for Pearson Edexcel.

    Definition of Troponin

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    Reference: Pearson Edexcel

    At rest it holds tropomyosin in position; when Ca²⁺ binds to it, tropomyosin moves and exposes the myosin-binding sites on actin.
    Pearson Edexcel · Topic 7: Run for your Life

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