Structure of key heart protein 'found'

Scientists have discovered how a key protein in heart muscle actually works to regulate heart function, a breakthrough which they claim should help find out why it goes wrong. An international team has shown how this cardiac protein interacts with actin, one of the two filament-forming muscle proteins (the other is myosin) that slide past each other to create the rhythmic contraction and relaxation that causes the heart to beat. The findings are published in the Proceedings of the National Academy of Sciences - Indian Express Newspapers