- Evaluation of the role of multidrug resistance-associated protein (mrp) 3 and mrp4 in hepatic basolateral excretion of sulfate and glucuronide metabolites of acetaminophen, 4-methylumbelliferone, and harmol in abcc3-/- and abcc4-/- mice. Zamek-Gliszczynski, M.J., Nezasa, K., Tian, X., Bridges, A.S., Lee, K., Belinsky, M.G., Kruh, G.D., Brouwer, K.L. J. Pharmacol. Exp. Ther. (2006)