Correction

BIOCHEMISTRY. For the article “A Drosophila PIAS homologue negatively regulates stat92E,” by Aurel Betz, Nina Lampen, Sebastian Martinek, Michael W. Young, and James E. Darnell, Jr., which appeared in number 17, August 14, 2001, of Proc. Natl. Acad. Sci. USA (98, 9563–9568), the authors note that stat⁰⁶³⁴⁶ should be stat92E⁰⁶³⁴⁶ throughout the text. Also, on page 9564, right column, line 5, stat^−/− should be dpias^−/−.