3.4.22.53 6.9 - - 644031 3.4.22.53 6.9 - enzyme from retina and brain 644030 3.4.22.53 7 - - 644052 3.4.22.53 7 7.5 - 643977 3.4.22.53 7.4 - 1 mM CaCL2 added to start reaction 696327 3.4.22.53 7.5 - - 644026, 644031, 644046, 708960 3.4.22.53 7.5 - m-calpain 669062 3.4.22.53 7.5 8 - 643979, 643987, 644032 3.4.22.53 7.6 - - 643988 3.4.22.53 7.7 - - 643981