shown as gray chains of actin molecules (balls), covered with smooth tropomyosin filaments. Troponin is shown in red (subunits not distinguished). Upon binding calcium, troponin moves tropomyosin ...

Calcium is required by two proteins, troponin and tropomyosin, that regulate muscle contraction by blocking the binding of myosin to filamentous actin. In a resting sarcomere, tropomyosin blocks ...

The Kennedy College of Sciences, Department of Biological Sciences, invites you to attend a Masters Thesis defense by Alfredo Bongiorno on "The Role of Key Tropomyosin-Troponin T Interactions in Thin ...