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Description
Troponin I Antibody (1H11L19), ABfinity? Rabbit Monoclonal. Troponin and tropomyosin are the main proteins responsible for calcium regulation of actin-myosin interactions. Tropomyosin is a rod-shaped molecule that binds in the groove of the actin helix, and prevents the attachment of the myosin fiber heads. The troponin complex consists of three polypeptide subunits, troponin T, troponin I, and troponin C. Troponin T (for tropomyosin binding unit) attaches the troponin complex to tropomyosin which results in tropomyosin being situated in the myosin-binding site on the actin molecule. Troponin I (for inhibitory subunit) binds to actin and troponin T, and this complex inhibits actin-myosin binding even in the presence of calcium. Tropon