Probing the Influence of the Protein Scaffold on H-Cluster Reactivity via Gain-of-Function Studies─Improved H2 Evolution and O2 Tolerance through Rational Design of [FeFe] Hydrogenase. Cabotaje, P.R., Sekretareva, A., Senger, M., Huang, P., Walter, K., Redman, H.J., Croy, N., Stripp, S.T., Land, H., Berggren, G., 2025. J. Am. Chem. Soc. https://doi.org/10.1021/jacs.4c17364