Manganese and tyrosyl radical function in photosynthetic oxygen evolution. Academic Article

abstract

• Photosystem II catalyzes the photosynthetic oxidation of water to O2. The structural and functional basis for this remarkable process is emerging. The catalytic site contains a tetramanganese cluster, calcium, chloride and a redox-active tyrosine organized so as to promote electroneutral hydrogen atom abstraction from manganese-bound substrate water by the tyrosyl radical. Recent work is assessed within the framework of this model for the water oxidizing process.

authors

• Tommos, Cecilia

published proceedings

• Curr Opin Chem Biol

author list (cited authors)

• Tommos, C., Hoganson, C. W., Valentin, M. D., Lydakis-Simantiris, N., Dorlet, P., Westphal, K., ... Babcock, G. T.

complete list of authors

• Tommos, C||Hoganson, CW||Valentin, MD||Lydakis-Simantiris, N||Dorlet, P||Westphal, K||Chu, HA||McCracken, J||Babcock, GT

publication date

• April 1998

publisher

• Elsevier  Publisher

published in

• Current Opinion in Chemical Biology  Journal

keywords

• Binding Sites
• Chlorophyll
• Free Radicals
• Light
• Light-harvesting Protein Complexes
• Manganese
• Oxygen
• Photosynthesis
• Photosynthetic Reaction Center Complex Proteins
• Photosystem Ii Protein Complex
• Tyrosine
• Water

PubMed Central ID

• 9667938

Digital Object Identifier (DOI)

• 10.1016/s1367-5931(98)80066-5

start page

• 244

end page

• 252

volume

• 2

issue

• 2

URL

• http://dx.doi.org/10.1016/s1367-5931(98)80066-5