Controlling the Photoreactivity of the Photoactive Yellow Protein Chromophore by Substituting at the <italic>p</italic>-Coumaric Acid Group
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چکیده
Controlling the Photoreactivity of the Photoactive Yellow Protein Chromophore by Substituting at the p-Coumaric Acid Group Martial Boggio-Pasqua and Gerrit Groenhof* Laboratoire de Chimie et Physique Quantiques, IRSAMC, CNRS et Universit e de Toulouse, 31062 Toulouse, France Computational Biomolecular Chemistry group, Max-Planck-Institut f€ur Biophysikalische Chemie, Am Fassberg 11, D-37077 G€ottingen, Germany
منابع مشابه
Controlling the Photoreactivity of the Photoactive Yellow Protein Chromophore by Substituting at the p-Coumaric Acid Group
We have performed ab initio CASSCF, CASPT2, and EOM-CCSD calculations on doubly deprotonated p-coumaric acid (pCA(2-)), the chromophore precursor of the photoactive yellow protein. The results of the calculations demonstrate that pCA(2-) can undergo only photoisomerization of the double bond. In contrast, the chromophore derivative with the acid replaced by a ketone (p-hydroxybenzylidene aceton...
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متن کاملEvidence for trans-cis isomerization of the p-coumaric acid chromophore as the photochemical basis of the photocycle of photoactive yellow
Analysis of the chromophore p-coumaric acid, extracted from the ground state and the long-lived blue-shifted photocycle intermediate of photoactive yellow protein, shows that the chromophore is reversibly converted from the trans to the cis configuration, while progressing through the photocycle. The detection of the trans and ¢is isomers was carried out by high performance capillary zone elect...
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تاریخ انتشار 2011