Ledbetter, R. ., Costas, A. G., Lubner, C. ., Mulder, D. ., Tokmina-Lukaszewska, M. ., Artz, J. ., … Seefeldt, L. . (2017). The Electron Bifurcating FixABCX Protein Complex from Azotobacter vinelandii: Generation of Low-Potential Reducing Equivalents for Nitrogenase Catalysis. Biochemistry, 56(32), 4177-4190. https://doi.org/10.1021/acs.biochem.7b00389 (Original work published 2017)