5.6.1.8 additional information - 0.039 micromol/min/mg myofibrillar dry weight, ventricle, at 20°C and pH 7.3 246980 5.6.1.8 additional information - 0.072 micromol/min/mg myofibrillar dry weight, atrium, at 20°C and pH 7.3 246980 5.6.1.8 additional information - 0.094 micromol/min/mg myofibrillar dry weight, ventricle, at 20°C and pH 7.3 246980 5.6.1.8 additional information - 0.125 micromol/min/mg myofibrillar dry weight, ventricle, at 20°C and pH 7.3 246980 5.6.1.8 additional information - 0.251 micromol/min/mg myofibrillar dry weight, atrium, at 20°C and pH 7.3 246980 5.6.1.8 0.0003 - substrate UTP, basal myosin ATPase, 0.6 M KCl, 2 mM MgCl2, pH 7 247003 5.6.1.8 0.0007 - - 686207 5.6.1.8 0.001 - in the absence of actin 246993 5.6.1.8 0.0024 - - 686207 5.6.1.8 0.003 - substrate ATP, basal myosin ATPase, 0.6 M KCl, 2 mM MgCl2, pH 7 247003