The Effect of Conjugation on the Competition between Internal Conversion and Electron Detachment: A Comparison between Green Fluorescent and Red Kaede Protein Chromophores.
The Effect of Conjugation on the Competition between Internal Conversion and Electron Detachment: A Comparison between Green Fluorescent and Red Kaede Protein Chromophores.
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共轭对内部转换和电子脱离之间竞争的影响:绿色荧光和红色 Kaede 蛋白发色团的比较。
DOI:
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发表时间:
2017
影响因子:
5.7
通讯作者:
H. Fielding
中科院分区:
文献类型:
--
作者:
Jamie Tay;M. Parkes;K. Addison;Y. Chan;Lijuan Zhang;H. Hailes;Philip C Bulman Page;S. Meech;L. Blancafort;H. Fielding
Kaede, an analogue of green fluorescent protein (GFP), is a green-to-red photoconvertible fluorescent protein used as an in vivo "optical highlighter" in bioimaging. The fluorescence quantum yield of the red Kaede protein is lower than that of GFP, suggesting that increasing the conjugation modifies the electronic relaxation pathway. Using a combination of anion photoelectron spectroscopy and electronic structure calculations, we find that the isolated red Kaede protein chromophore in the gas phase is deprotonated at the imidazole ring, unlike the GFP chromophore that is deprotonated at the phenol ring. We find evidence of an efficient electronic relaxation pathway from higher-lying electronically excited states to the S1 state of the red Kaede chromophore that is not accessible in the GFP chromophore. Rapid autodetachment from high-lying vibrational states of S1 is found to compete efficiently with internal conversion to the ground electronic state.
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影响因子:
5.1
作者:
I. Yampolsky;A. Kislukhin;Tynchtyk Amatov;D. Shcherbo;V. Potapov;S. Lukyanov;K. Lukyanov
通讯作者:
I. Yampolsky;A. Kislukhin;Tynchtyk Amatov;D. Shcherbo;V. Potapov;S. Lukyanov;K. Lukyanov
影响因子:
13.8
作者:
CUBITT, AB;HEIM, R;TSIEN, RY
通讯作者:
TSIEN, RY
影响因子:
8.4
作者:
Mooney, Ciaran R. S.;Horke, Daniel A.;Verlet, Jan R. R.
通讯作者:
Verlet, Jan R. R.
DOI:
10.1073/pnas.93.16.8362
发表时间:
1996-08-06
影响因子:
11.1
作者:
Chattoraj, M;King, BA;Boxer, SG
通讯作者:
Boxer, SG
DOI:
10.1039/c6cp00565a
发表时间:
2016
期刊:
PCCP
影响因子:
--
作者:
Parkes MA
通讯作者:
Parkes MA