Fig. 2.
Inhibition of anti-TG activity of IVIg by IVIgM. Increasing amounts of IVIgM (▵), anti-TG–depleted IVIgM (▴), or IVIg (□) were coincubated with a fixed amount of 125I-labeled IVIg overnight at 4°C. The binding of 125I-IVIg to TG antigen was then asessed. The abscissa indicates molar ratios between competitor Ig and 125I-IVIg.