TY - JOUR
T1 - The inorganic biochemistry of photosynthetic oxygen evolution/water oxidation
AU - Ananyev, G. M.
AU - Zaltsman, L.
AU - Vasko, C.
AU - Dismukes, G. C.
N1 - Funding Information:
We thank Dr. R. Watt for several helpful comments on the text and Drs. T. Wydrzynski, W. Hillier, Y. Abe, V. Klimov, S. Baranov, A. Boelrijk and C. Tommos for discussions and Mr. R. McInturff and E. Bruntrager for preliminary studies. Research supported by the NIH (Grant GM39932).
PY - 2001/1/5
Y1 - 2001/1/5
N2 - At the request of the organizer of this special edition, we have attempted to do several things in this manuscript: (1) we present a mini-review of recent, selected, works on the light-induced inorganic biogenesis (photoactivation), composition and structure of the inorganic core responsible for photosynthetic water oxidation; (2) we summarize a new proposal for the evolutionary origin of the water oxidation catalyst which postulates a key role for bicarbonate in formation of the inorganic core; (3) we summarize published studies and present new results on what has been learned from studies of 'inorganic mutants' in which the endogenous cofactors (Mn(n+), Ca 2+, Cl-) are substituted; (4) the first ΔpH changes measured during the photoactivation process are reported and used to develop a model for the stepwise photo-assembly process; (5) a comparative analysis is given of data in the literature on the kinetics of substrate water exchange and peroxide binding/dismutation which support a mechanistic model for water oxidation in general; (6) we discuss alternative interpretations of data in the literature with a view to forecast new avenues where progress is needed. Copyright (C) 2001 Elsevier Science B.V.
AB - At the request of the organizer of this special edition, we have attempted to do several things in this manuscript: (1) we present a mini-review of recent, selected, works on the light-induced inorganic biogenesis (photoactivation), composition and structure of the inorganic core responsible for photosynthetic water oxidation; (2) we summarize a new proposal for the evolutionary origin of the water oxidation catalyst which postulates a key role for bicarbonate in formation of the inorganic core; (3) we summarize published studies and present new results on what has been learned from studies of 'inorganic mutants' in which the endogenous cofactors (Mn(n+), Ca 2+, Cl-) are substituted; (4) the first ΔpH changes measured during the photoactivation process are reported and used to develop a model for the stepwise photo-assembly process; (5) a comparative analysis is given of data in the literature on the kinetics of substrate water exchange and peroxide binding/dismutation which support a mechanistic model for water oxidation in general; (6) we discuss alternative interpretations of data in the literature with a view to forecast new avenues where progress is needed. Copyright (C) 2001 Elsevier Science B.V.
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U2 - 10.1016/S0005-2728(00)00215-2
DO - 10.1016/S0005-2728(00)00215-2
M3 - Article
C2 - 11115624
AN - SCOPUS:0035808693
VL - 1503
SP - 52
EP - 68
JO - Biochimica et Biophysica Acta - Bioenergetics
JF - Biochimica et Biophysica Acta - Bioenergetics
SN - 0005-2728
IS - 1-2
ER -