FROM WATER TO OXYGEN AND BACK AGAIN - MECHANISTIC SIMILARITIES IN THEENZYMATIC REDOX CONVERSIONS BETWEEN WATER AND DIOXYGEN

Authors
HOGANSON CW PRESSLER MA PROSHLYAKOV DA BABCOCK GT
Citation
Cw. Hoganson et al., FROM WATER TO OXYGEN AND BACK AGAIN - MECHANISTIC SIMILARITIES IN THEENZYMATIC REDOX CONVERSIONS BETWEEN WATER AND DIOXYGEN, Biochimica et biophysica acta. Bioenergetics, 1365(1-2), 1998, pp. 170-174
Citations number
26
Categorie Soggetti
Biology,Biophysics
Journal title
Biochimica et biophysica acta. Bioenergetics → ACNP
ISSN journal
00052728
Volume
1365
Issue
1-2
Year of publication
1998
Pages
170 - 174
Database
ISI
SICI code
0005-2728(1998)1365:1-2<170:FWTOAB>2.0.ZU;2-Q
Abstract
We propose that the interconversions of water and oxygen are catalyzed by the transition metal ions of Photosystem II and cytochrome c oxida se in remarkably similar ways. Oxygen-oxygen bond formation and cleava ge occurs between two oxygen atoms that are bound as terminal ligands to two redox-active metal ions. Hydrogen atom transfer to or from a ty rosine residue is an essential component of the processes in both enzy mes. (C) 1998 Elsevier Science B.V.