Download MendeleyThe Catalytic Pathway of Horseradish Peroxidase at High Resolution
Berglund, G.I., Carlsson, G.H., Smith, A.T., Szoke, H., Henriksen, A., Hajdu, J.(2002) Nature 417: 463
- PubMed: 12024218
- DOI: https://doi.org/10.1038/417463a
- Primary Citation of Related Structures:
1H55, 1H57, 1H58, 1H5A, 1H5C, 1H5D, 1H5E, 1H5F, 1H5G, 1H5H, 1H5I, 1H5J, 1H5K, 1H5L, 1H5M, 1HCH - PubMed Abstract:
A molecular description of oxygen and peroxide activation in biological systems is difficult, because electrons liberated during X-ray data collection reduce the active centres of redox enzymes catalysing these reactions. Here we describe an effective strategy to obtain crystal structures for high-valency redox intermediates and present a three-dimensional movie of the X-ray-driven catalytic reduction of a bound dioxygen species in horseradish peroxidase (HRP). We also describe separate experiments in which high-resolution structures could be obtained for all five oxidation states of HRP, showing such structures with preserved redox states for the first time.
Organizational Affiliation:
Department of Biochemistry, Uppsala University, Biomedical Center, Box 576, S-751 23 Uppsala, Sweden.
