Calcium binding in chemically skinned fibers of rat myocardium during force development.
The amount of bound calcium and force were measured in chemically skinned rat myocardial fibers during isometric contraction at different concentrations of free Ca2+. The data obtained suggest that calcium binding by cardiac myofibrils is cooperative and probably depends on mechanical tension.
D000818:Animals; D002118:Calcium / Q000378:metabolism*; D009200:Myocardial Contraction; D009206:Myocardium / Q000378:metabolism*; D009210:Myofibrils / Q000378:metabolism; D051381:Rats
D002118:Calcium