Phototriggering Electron Flow through ReI-modified Pseudomonas aeruginosa Azurins

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F11%3A00359154" target="_blank" >RIV/61388955:_____/11:00359154 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1002/chem.201002162" target="_blank" >http://dx.doi.org/10.1002/chem.201002162</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/chem.201002162" target="_blank" >10.1002/chem.201002162</a>

Result language

angličtina

Original language name

Phototriggering Electron Flow through ReI-modified Pseudomonas aeruginosa Azurins

Original language description

The [ReI(CO)3(4,7-dimethyl-1,10-phenanthroline)(histidine-124)(tryptophan-122)] complex, denoted [ReI(dmp)(W122)], of Pseudomonas aeruginosa azurin behaves as a single photoactive unit that triggers very fast electron transfer (ET) from a distant (2?nm)CuI center in the protein. Analysis of time-resolved (ps??s) IR spectroscopic and kinetics data collected on [ReI(dmp)(W122)AzM] (in which M=ZnII, CuII, CuI; Az=azurin) and position-122 tyrosine (Y), phenylalanine (F), and lysine (K) mutants, together with excited-state DFT/time-dependent (TD)DFT calculations and X-ray structural characterization, reveal the character, energetics, and dynamics of the relevant electronic states of the [ReI(dmp)(W122)] unit and a cascade of photoinduced ET and relaxationsteps in the corresponding Re?azurins. Optical population of [ReI(imidazole-H124)(CO)3]dmp 1CT states (CT=charge transfer) is followed by around 110?fs intersystem crossing and about 600?ps structural relaxation to a 3CT state.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CG - Electrochemistry

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2011

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Chemistry - A European Journal

ISSN

0947-6539

e-ISSN

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Volume of the periodical

17

Issue of the periodical within the volume

19

Country of publishing house

DE - GERMANY

Number of pages

11

Pages from-to

5350-5361

UT code for WoS article

000290214200018

EID of the result in the Scopus database

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