File:Troponin-activation.png

Summary
Schematic of troponin complex in activated and inactivated states. The yellow, red, and blue proteins are troponin I, C, and T, respectively. Only small portions of the actin, myosoin, and tropomyosin filaments are depicted. Scale relationships are inaccurate.

Original drawing by RMB Hoffman (Copyleft 2010). Based on Proteins 2008 Nov 1;73(2):338-50.