Absorption of the green fluorescent protein chromophore anion in the gas phase studied by a combination of FTICR mass spectrometry with laser-induced photodissociation spectroscopy

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Author(s) Chingin, Konstantin, Balabin, Roman M., Frankevich, Vladimir, Barylyuk, Konstantin, Nieckarz, Robert, Sagulenko, Pavel, Zenobi, Renato
Publication Type Journal Items, Publication Status: Published
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Title Absorption of the green fluorescent protein chromophore anion in the gas phase studied by a combination of FTICR mass spectrometry with laser-induced photodissociation spectroscopy
Author(s) Chingin, Konstantin
Balabin, Roman M.
Frankevich, Vladimir
Barylyuk, Konstantin
Nieckarz, Robert
Sagulenko, Pavel
Zenobi, Renato
Journal or Series Title International journal of mass spectrometry
Volume Number 306
Issue Number 2-3
Start Page 241
End Page 245
ISSN 1387-3806
1873-2798
Publisher Elsevier
Publication Place Amsterdam
Publication Date 2011-09-15
Keyword(s) GFP chromophore
HBDI anion
Gas-phase absorption
Action spectroscopy
FTICR-MS
Abstract The optical absorption of the green fluorescent protein chromophore anion (HBDI(-)) in the gas phase has been addressed by a number of experimental and theoretical studies; however, there is no consensus on its spectral characteristics yet. In this report, the intrinsic absorption of HBDI(-) was probed by photo-induced dissociation ("action") spectroscopy using discrete lines of a continuous-wave (CW) laser source. The observed spectral profile of dissociation efficiency revealed a pronounced dependence on the laser irradiance. Dissociation at high irradiance is governed by multiple-photon absorption processes whose efficiency peaks between 476 and 488 nm. At very low irradiance (<0.4 mW cm(-2)) dissociation of gas-phase HBDI(-) is mostly promoted by single-photon transitions and suggests an intrinsic absorption maximum of gas-phase HBDI(-) <476 nm, blue-shifted compared to earlier results obtained with pulsed lasers.
DOI 10.1016/j.ijms.2011.01.014
Additional Notes Received 14 August 2010
Revised 14 January 2011
Accepted 18 January 2011
Published online 10 February 2011
Document Type Article
Publication Status Published
Language English
Assigned Organisational Unit(s) 03430
Organisational Unit(s)
NEBIS System Number 000024690
Source Database ID WOS-000295351200021
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@article{Chngn2011,
  author = "Chingin, Konstantin and Balabin, Roman M. and Frankevich, Vladimir and Barylyuk, Konstantin and Nieckarz, Robert and Sagulenko, Pavel and Zenobi, Renato",
  title = "{A}bsorption of the green fluorescent protein chromophore anion in the gas phase studied by a combination of {F}{T}{I}{C}{R} mass spectrometry with laser-induced photodissociation spectroscopy",
  journal = "International journal of mass spectrometry",
  year = 2011,
  volume = "306",
  number = "2-3",
  pages = "241--245",
  month = sep,
}


E-Citations record created: Mon, 24 Oct 2011, 06:43:47 CET