Correction for Deshpande et al., A bio-chemo-mechanical model for cell contractility

cell biology. For the article “A bio-chemo-mechanical model for cell contractility,” by Vikram S. Deshpande, Robert M. McMeeking, and Anthony G. Evans, which appeared in issue 38, September 19, 2006, of Proc Natl Acad Sci USA (103:14015–14020; first published September 7, 2006; 10.1073/pnas.0605837103), the authors note that Eq. 3 is incorrect. The corrected equation appears below. This error does not affect the conclusions of the article.