Corrections and Retraction

Correction for "EGF receptor ubiquitination is not necessary for its internalization," by Fangtian Huang, Lai Kuan Goh, and Alexander Sorkin, which appeared in issue 43, October 23, 2007, of Proc Nati Acad Sci USA (104:16904-16909; first published October 16, 2007; 10.1073/pnas.0707416104). The authors note that on page 16908, right column, in the last sentence of the seventh paragraph, "American Chemical Society" should instead appear as "American Cancer Society." This error does not affect the conclusions of the article.