Troponin is shown in red (subunits not distinguished). Upon binding calcium, troponin moves tropomyosin away from the myosin-binding sites on actin (bottom), effectively unblocking it. Modified ...

Overall diagnostic accuracy was higher than clinicians (0.74 and 0.70), and detection of type 1 heart attack was on par with contemporary high-sensitivity troponin T (0.87), which had higher ...