Fig. 6.

Endoplasmic reticulum (ER) total radiolabeled TG content in IPEC-1 cells overexpressing native swine (A) and piglike human mutant (B) apo A-IV as assessed by incubation for 24 h with radiolabeled OA with and without 400 ng/ml DOX followed by cell fractionation, lipid extraction, thin-layer chromatography, and scintillation counting as described under methods. Bars represent mean radiolabeled lipid content as dpm/cell protein from pooled samples from 4 Transwells as described under methods.