Ledbetter, R. N., Costas, A. M. G., Lubner, C. E., Mulder, D. W., Tokmina-Lukaszewska, M., Artz, J. H., et al. (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)