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Carotenoid response to retinal excitation and photoisomerization dynamics in xanthorhodopsin

SYSNO ASEP	0367254
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Carotenoid response to retinal excitation and photoisomerization dynamics in xanthorhodopsin
Author(s)	Šlouf, V. (CZ) Balashov, S.P. (US) Lanyi, J.K. (US) Pullerits, T. (SE) Polívka, Tomáš (BC-A)_{RID, ORCID}
Number of authors	6
Source Title	Chemical Physics Letters. - : Elsevier - ISSN 0009-2614 Roč. 516, 1-3 (2011), s. 96-101
Number of pages	6 s.
Language	eng - English
Country	NL - Netherlands
Keywords	carotenoid ; retinal ; excited-state dynamics ; xanthorhodopsin
Subject RIV	BO - Biophysics
CEZ	AV0Z50510513 - UMBR-M, BC-A (2005-2011)
UT WOS	000296582400018
DOI	10.1016/j.cplett.2011.09.062
Annotation	Paper presents a comparative study of xanthorhodopsin, a proton pump with the carotenoid salinixanthin serving as an antenna, and the closely related bacteriorhodopsin. Upon excitation of retinal, xanthorhodopsin exhibits a wavy transient absorption pattern in the region between 470 and 540 nm. This signal is interpreted as due to electrochromic effect of the transient electric field of excited retinal on salinixanthin. The spectral shift decreases during the retinal dynamics through the ultrafast part of the photocycle. Differences in dynamics of bacteriorhodopsin and xanthorhodopsin are discussed.
Workplace	Biology Centre (since 2006)
Contact	Dana Hypšová, eje@eje.cz, Tel.: 387 775 214
Year of Publishing	2012

Number of the records: 1