4YSC:
reference: Redox-coupled proton transfer mechanism in nitrite reductase revealed by femtosecond crystallography., Fukuda Y, Tse KM, Nakane T, Nakatsu T, Suzuki M, Sugahara M, Inoue S, Masuda T, Yumoto F, Matsugaki N, Nango E, Tono K, Joti Y, Kameshima T, Song C, Hatsui T, Yabashi M, Nureki O, Murphy ME, Inoue T, Iwata S, Mizohata E, Proc Natl Acad Sci U S A. 2016 Feb 29. pii: 201517770. PMID: 26929369

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