Excited-State Properties of Protochlorophyllide Analogues and Implications for Light-Driven Synthesis of Chlorophyll.
Excited-State Properties of Protochlorophyllide Analogues and Implications for Light-Driven Synthesis of Chlorophyll.
复制标题
原叶绿素类似物的激发态性质及其对光驱动叶绿素合成的影响。
DOI:
10.1021/acs.jpcb.7b00528
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发表时间:
2017
期刊:
影响因子:
--
通讯作者:
Heyes DJ
中科院分区:
文献类型:
--
作者:
Heyes DJ
Protochlorophyllide (Pchlide), an intermediate in the biosynthesis of chlorophyll, is the substrate for the light-driven enzyme protochlorophyllide oxidoreductase. Pchlide has excited-state properties that allow it to initiate photochemistry in the enzyme active site, which involves reduction of Pchlide by sequential hydride and proton transfer. The basis of this photochemical behavior has been investigated here using a combination of time-resolved spectroscopies and density functional theory calculations of a number of Pchlide analogues with modifications to various substituent groups. A keto group on ring E is essential for excited-state charge separation in the molecule, which is the driving force for the photoreactivity of the pigment. Vibrational “fingerprints” of specific regions of the Pchlide chromophore have been assigned, allowing identification of the modes that are crucial for excited-state chemistry in the enzyme. This work provides an understanding of the structural determinants of Pchlide that are important for harnessing light energy.
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影响因子:
3.7
作者:
D. Heyes;S. Hardman;David J Mansell;J. Gardiner;N. Scrutton
通讯作者:
N. Scrutton
影响因子:
3.3
作者:
Scrutton, Nigel S.;Groot, Marie Louise;Heyes, Derren J.
通讯作者:
Heyes, Derren J.
DOI:
10.1002/anie.201409881
发表时间:
2015-01-26
期刊:
Angewandte Chemie (International ed. in English)
影响因子:
--
作者:
Heyes DJ;Hardman SJ;Hedison TM;Hoeven R;Greetham GM;Towrie M;Scrutton NS
通讯作者:
Scrutton NS
影响因子:
2.5
作者:
R. Hanf;S. Tschierlei;B. Dietzek;S. Seidel;G. Hermann;M. Schmitt;J. Popp
通讯作者:
J. Popp
DOI:
10.1046/j.1432-1327.1999.00627.x
发表时间:
1999-11-01
期刊:
EUROPEAN JOURNAL OF BIOCHEMISTRY
影响因子:
--
作者:
Klement, H;Helfrich, M;Rüdiger, W
通讯作者:
Rüdiger, W