http://medicalxpress.com/ en-us Medical Xpress internet news portal provides the latest news on Health and Medicine. A certain enzyme, the CaM kinase II, keeps the cardiac muscle flexible. By transferring phosphate groups to the giant protein titin, it relaxes the muscle cells. This is reported by researchers led by Prof. Dr. Wolfgang Linke of the Institute of Physiology at the Ruhr Universität in the journal Circulation Research. http://medicalxpress.com/news/2013-01-enzyme-cam-kinase-ii-muscle.html Cardiology Thu, 17 Jan 2013 10:31:39 EST news277640781