Figure 1. Treatment of 3T3/TrkB cells with BDNF (#3897) stimulates tyrosine-phosphorylation of TrkB, detected by PathScan® Phospho-TrkB (Tyr706/707) Sandwich ELISA Kit #7118, but does not affect the level of total TrkB detected by PathScan® Total TrkB Sandwich ELISA Kit #7106. Absorbance at 450 nm is shown in the top figure, while the corresponding Western blots using Phospho-TrkA (Tyr674/675)/TrkB (Tyr706/707) (C50F3) Rabbit mAb #4621 (right panel) or TrkB (80E3) Rabbit mAb #4603 (left panel), are shown in the bottom figure. The human TrkB is transfected and expressed in NIH/3T3 cells.