A Designed Functional Metalloenzyme that Reduces O(2) to H(2) O with Over One Thousand Turnovers.Miner, K.D., Mukherjee, A., Gao, Y.G., Null, E.L., Petrik, I.D., Zhao, X., Yeung, N., Robinson, H., Lu, Y.
(2012) Angew Chem Int Ed Engl 51: 5589-5592
- PubMed: 22539151
- DOI: https://doi.org/10.1002/anie.201201981
- Primary Citation of Related Structures:
4FWX, 4FWY, 4FWZ
- PubMed Abstract:
[Image: see text] Rational design of functional enzymes with high turnovers is a significant challenge, especially those with complex active site and difficult reactions, such as in respiratory oxidases. Introducing 2 His and 1 Tyr into myoglobin resulted in designed enzymes that reduce O 2 to H 2 O with > 1000 turnovers and minimal release of reactive oxygen species. This also showed that presence and positioning of Tyr, not Cu, are critical for activity.
Department of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA.