Confocal immunofluorescent analysis of C2C12 cells, serum-starved (left) or treated with Mouse Interferon-γ (mIFN-γ) #5222 (50 ng/ml, 16 hr; right), using IDO (D8W5E) Rabbit mAb (green). Actin filaments were labeled with DyLight™ Phalloidin #13054 (red). Blue pseudocolor = DRAQ5® #4804.