Table 2. SPR results.

The immobilized protein was secretagogin and the analyte in the flow phase was SNAP-25.

Ca2+/EDTA	Analyte concentrations tested (μM)	Kd (M)	kon (s−1·M−1)	koff (s−1)
Ca2+	0.025–0.9	1.2×10−7	3.7×103	4.4×10−5
EDTA	0.025–0.9	1.5×10−6	2.6×103	2.6×10−4