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X-ray Crystal Structure and Time-resolved Spectroscopy of the Blue Carotenoid Violerythrin
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SYSNO ASEP 0355275 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title X-ray Crystal Structure and Time-resolved Spectroscopy of the Blue Carotenoid Violerythrin Author(s) Polívka, Tomáš (BC-A) RID, ORCID
Frank, H.A. (US)
Enriquez, M.M. (US)
Niedzwiedzki, D.M. (US)
Liaaen-Jensen, S. (NO)
Hemming, J. (GB)
Helliwell, J.R. (GB)
Helliwell, M. (GB)Number of authors 8 Source Title Journal of Physical Chemistry B. - : American Chemical Society - ISSN 1520-6106
Roč. 114, č. 26 (2010), s. 8760-8769Number of pages 10 s. Language eng - English Country US - United States Keywords carotenoids ; excited states ; spectroscopy Subject RIV BO - Biophysics CEZ AV0Z50510513 - UMBR-M, BC-A (2005-2011) UT WOS 000279282600021 DOI 10.1021/jp101296a Annotation Blue carotenoid violerythrin was investigated by X-ray crystallography and ultrafast time-resolved spectroscopy. The X-ray crystal structure shows that the molecule is nearly planar with the terminal rings positioned in the s-trans conformation. Time-resolved spectroscopic data of violerythrin are similar to those of other carbonyl carotenoids with long conjugated chains. The study determined structural requirements for a blue, neutral carotenoid: 1) planar, symmetric chromophore, 2) central polyene chain with nine or ten conjugated carbon-carbon double bonds connected at each end by an s-trans or trans bond to two identical, cyclic end groups, each possessing a conjugated keto group further cross-conjugated to another keto group or a double bond in a quinoid type structure. Workplace Biology Centre (since 2006) Contact Dana Hypšová, eje@eje.cz, Tel.: 387 775 214 Year of Publishing 2012
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