Groenhof, G., Schaefer, L., Boggio-Pasqua, M., Grubmueller, H., & Robb, M. A. (2008). Arginine52 controls the photoisomerization process in photoactive yellow protein. Journal of the American Chemical Society, 130(11), 3250-3251. Retrieved from http://pubs.acs.org/cgi-bin/article.cgi/jacsat/2008/130/i11/pdf/ja078024u.pdf.