NADPH-dependent thioredoxin reductase and 2-Cys peroxiredoxins are needed for the protection of Mg-protoporphyrin monomethyl ester cyclase
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NADPH-dependent thioredoxin reductase and 2-Cys peroxiredoxins are needed for the protection of Mg-protoporphyrin monomethyl ester cyclase. / Stenbæk, Anne; Hansson, Andreas; Wulff, Ragna Peterson; Hansson, Mats; Dietz, Karl-Josef; Jensen, Poul Erik.
I: FEBS Letters, Bind 582, Nr. 18, 2008, s. 2773-2778.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - NADPH-dependent thioredoxin reductase and 2-Cys peroxiredoxins are needed for the protection of Mg-protoporphyrin monomethyl ester cyclase
AU - Stenbæk, Anne
AU - Hansson, Andreas
AU - Wulff, Ragna Peterson
AU - Hansson, Mats
AU - Dietz, Karl-Josef
AU - Jensen, Poul Erik
PY - 2008
Y1 - 2008
N2 - Abstract: The chloroplast-localized NADPH-dependent thioredoxin reductase ( NTRC) has been found to be able to reduce hydrogen peroxide scavenging 2-Cys peroxiredoxins. We show that the Arabidopsis ntrc mutant is perturbed in chlorophyll biosynthesis and accumulate intermediates preceding protochlorophyllide formation. A specific involvement of NTRC during biosynthesis of protochlorophyllide is indicated from in vitro aerobic cyclase assays in which the conversion of Mg-protoporhyrin monomethyl ester into protochlorophyllide is stimulated by addition of the NTRC/2-Cys peroxiredoxin system. These findings support the hypothesis that this NADPH-dependent hydrogen peroxide scavenging system is particularly important during periods with limited reducing power from photosynthesis, e. g. under chloroplast biogenesis. (c) 2008 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
AB - Abstract: The chloroplast-localized NADPH-dependent thioredoxin reductase ( NTRC) has been found to be able to reduce hydrogen peroxide scavenging 2-Cys peroxiredoxins. We show that the Arabidopsis ntrc mutant is perturbed in chlorophyll biosynthesis and accumulate intermediates preceding protochlorophyllide formation. A specific involvement of NTRC during biosynthesis of protochlorophyllide is indicated from in vitro aerobic cyclase assays in which the conversion of Mg-protoporhyrin monomethyl ester into protochlorophyllide is stimulated by addition of the NTRC/2-Cys peroxiredoxin system. These findings support the hypothesis that this NADPH-dependent hydrogen peroxide scavenging system is particularly important during periods with limited reducing power from photosynthesis, e. g. under chloroplast biogenesis. (c) 2008 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
U2 - 10.1016/j.febslet.2008.07.006
DO - 10.1016/j.febslet.2008.07.006
M3 - Journal article
VL - 582
SP - 2773
EP - 2778
JO - F E B S Letters
JF - F E B S Letters
SN - 0014-5793
IS - 18
ER -
ID: 8854809