Table 2. Association and dissociation constants for the interaction of purified FSH with FSH receptor.

Sample	kon, nM-1*min-1	koff, min-1	t1/2, min	KD, pM
Gonal-F	0.89±0.23	0.0057±0.0017	134±40	6.3±2.5
FSH #1	0.71±0.13	0.0034±0.0006	209±35	4.8±1.2
FSH #2	0.65±0.16	0.0043±0.0008	167±31	6.6±2.1

Data are given as mean ± 95% confidence interval, n = 2.