On the Track of Long-Range Electron Transfer in B-Type Dye-Decolorizing Peroxidases: Identification of a Tyrosyl Radical by Computational Prediction and Electron Paramagnetic Resonance Spectroscopy
Kevin Nys, Paul G. Furtmüller, Christian Obinger, Sabine Van Doorslaer, Vera Pfanzagl
Abstract
DyP, which are unique to enterobacterial B-type DyPs. Y247 is connected to Y92 by a hydrogen bonding network, is solvent accessible in simulations, and is involved in ABTS oxidation. This suggests the existence of long-range electron path(s) in B-type DyPs. The mechanistic and physiological relevance of the reaction mechanism of B-type DyPs is discussed.
Topics & Concepts
ChemistryElectron paramagnetic resonanceElectron transferPhotochemistryRadicalPeroxidaseHemeCatalysisNuclear magnetic resonanceOrganic chemistryEnzymePhysicsElectron Spin Resonance StudiesPhotoreceptor and optogenetics researchPhotochemistry and Electron Transfer Studies