Correction

BIOCHEMISTRY. For the article “Crystal structure of thermostable DNA photolyase: Pyrimidine-dimer recognition mechanism,” by Hirofumi Komori, Ryoji Masui, Seiki Kuramitsu, Shigeyuki Yokoyama, Takehiko Shibata, Yorinao Inoue, and Kunio Miki, which appeared in number 24, November 20, 2001, of Proc. Natl. Acad. Sci. USA (98, 13560–13565; First Published November 13, 2001; 10.1073/pnas.241371398), on page 13560, the sentence beginning on line 2 from the bottom of the first column should read, “Until now, only two crystal structures of the photolyases from Escherichia coli (folate-type; ref. 6) and Anacystis nidulans (deazaflavin-type; ref. 7) have been solved at atomic resolution.”