Two Tryptophans Are Better Than One in Accelerating Electron Flow through a Protein oleh Kana Takematsu, Heather R Williamson, Pavle Nikolovski, Jens T. Kaiser, Yuling Sheng, Petr Pospíšil, Michael Towrie, Jan Heyda, Daniel Hollas, Stanislav Záliš, Harry B. Gray, Antonín Vlček, Jay R. Winkler