Table 1. Inhibitory Activity of Different Components of FYGL against PTP1B.

components	IC50 (μg/mL)a
FYGL-1
FYGL-2	439 ± 105
FYGL-3	35.5 ± 6.5
FYGL-3-P	15.4 ± 3.3
Na3VO4	1.61 ± 0.31

^aNa₃VO₄ was used as the positive control. IC₅₀ values were determined by the same conditions, as shown in Figure 4C. Data are the mean ± S.E. (n = 3). The IC₅₀ value of FYGL-1 was not detectable.