Table 2. X_I(50), IC₅₀, and Standard Error Values for the Inhibition of cPLA₂ by Pyrrophenone, iPLA₂ by OTFP, and sPLA₂ by Ly315920, Respectively, Calculated by Performing Three Independent Dose–Response Inhibition Experiments on Each Inhibitor.

	pyrrophenone				OTFP				LY315920
	positive		negative		positive		negative		positive		negative
	XI(50)	IC50 (μM)	XI(50)	IC50 (μM)	XI(50)	IC50 (μM)	XI(50)	IC50 (μM)	XI(50)	IC50 (μM)	XI(50)	IC50 (μM)
	0.0027	1.83	0.0027	1.88	0.00008	0.054	0.00007	0.049	0.00015	0.104	0.00019	0.131
	0.0019	1.32	0.0020	1.38	0.00008	0.058	0.00009	0.060	0.00018	0.124	0.00018	0.127
	0.0023	1.61	0.0021	1.47	0.00007	0.051	0.00005	0.034	0.00017	0.116	0.00020	0.136
average	0.0023	1.59	0.0023	1.58	0.00008	0.055	0.00007	0.048	0.00017	0.114	0.00019	0.131
STDEV	0.0004	0.26	0.0004	0.27	0.000005	0.004	0.00002	0.013	0.00001	0.010	0.00001	0.004