Distinct classes of phosphatidylinositol 3′-kinases are involved in signaling pathways that control macroautophagy in HT-29 cells.

Page 994, Fig. 2, panel B: The quantitity of IL-13 used is indicated in molarity (nm) instead of concentration (ng/ml). It should read “[IL-13] ng/ml.” Page 994, Table I: The concentration of IL-13 used in Table I, line 5, should be 20 ng/ml, not 10 nm.