3.4.22.52	Ba2+	activates	643987	
3.4.22.52	Ba2+	activates, Ka: 1.5 mM	643988	
3.4.22.52	Ca2+	-	643983, 643987, 696451	
3.4.22.52	Ca2+	0.0044 mM required for half-maximal activity	679332	
3.4.22.52	Ca2+	0.01 mM	679333	
3.4.22.52	Ca2+	activates	707364	
3.4.22.52	Ca2+	activates at 1.0 mM	707398	
3.4.22.52	Ca2+	activation of mu-calpain requires micromolar calcium (0.4 mM used in assays)	717201	
3.4.22.52	Ca2+	activity is absolutely dependent on calcium	709887	
3.4.22.52	Ca2+	Ca2+ requirement for half-maximal activation (0.003-0.05 mM)	709681