3.1.1.32	Ba2+	divalent cation required	94311	
3.1.1.32	Ca2+	10 mM, 10% activation	133898	
3.1.1.32	Ca2+	111.5% relative activity at 5 mM Ca2+	692119	
3.1.1.32	Ca2+	activates at 10 mM	729743	
3.1.1.32	Ca2+	dependent on	681568	
3.1.1.32	Ca2+	divalent cation required, Ca2+ being most effective, maximal activity at 10 mM	94311	
3.1.1.32	Ca2+	independent of Ca2+ at pHs below 7.4, striking pH dependence at alkaline pH	94340	
3.1.1.32	Ca2+	no requirement	94332, 94341	
3.1.1.32	Ca2+	required	729305, 94324	
3.1.1.32	Ca2+	required for actiivty, one Ca2+ per monomer bound at the dimer interface	650360	
3.1.1.32	Ca2+	required for activity	653785	
3.1.1.32	Ca2+	required for activity, only in dimeric OMPLA high affinity Ca2+-sites are formed that are essential for catalysis	650360	
3.1.1.32	Ca2+	slight stimulation of solubilized enzyme from plasmalemma	94315	
3.1.1.32	Hg2+	2.0 mM, stimulates	94307	
3.1.1.32	Hg2+	not required	94307, 94308, 94312, 94316	
3.1.1.32	Hg2+	stimulates	94312	
3.1.1.32	Mg2+	divalent cation required	94311	
3.1.1.32	Mg2+	maximal stimulation at 1 mM	94338	
3.1.1.32	Mg2+	required	94335	
3.1.1.32	Mn2+	divalent cation required	94311	
3.1.1.32	additional information	Ca2+ is not required	749810	
3.1.1.32	additional information	H-Rev107 functions as a cytosolic Ca2+-independent PLA1/2	709425	
3.1.1.32	additional information	independent of Ca2+	664829	
3.1.1.32	additional information	metal ion-independent phospholipase A1	729743	
3.1.1.32	additional information	TbPLA1 does not require metal co-factors for activity	678064	
3.1.1.32	Sr2+	divalent cation required	94311