Correction

BIOCHEMISTRY. For the article “High-quality life extension by the enzyme peptide methionine sulfoxide reductase,” by Hongyu Ruan, Xiang Dong Tang, M.-L. Chen, M. A. Joiner, Guangrong Sun, Nathan Brot, Herbert Weissbach, Stephen H. Heinemann, Linda Iverson, Chun-Fang Wu, and Toshinori Hoshi, which appeared in number 5, March 5, 2002, of Proc. Natl. Acad. Sci. USA (99, 2748–2753; First Published February 26, 2002; 10.1073/pnas.032671199), the authors note the following errors in the author line. M.-L. Chen should be listed as Mai-Lei Chen. M. A. Joiner should be Mei-Ling A. Joiner. Stephen H. Heinemann should be listed as Stefan H. Heinemann. The online version has been corrected.