About: Carotenoid-protein interaction alters the S1 energy of hydroxyechinenone in the Orange Carotenoid Protein

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About: Carotenoid-protein interaction alters the S1 energy of hydroxyechinenone in the Orange Carotenoid Protein Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We have determined the S1 energy of the carotenoid hydroxyechinenone (hECN) in organic solvent and compared it with the S1 energy of hECN bound to the OCP. In methanol and n-hexane, hECN has an S1 energy of 14,300 cm-1, slightly higher than carotenoids with shorter conjugation lengths such as zeaxanthin or beta-carotene; this is consistent with the proposal that the presence of the conjugated carbonyl group in hECN increases its S1 energy. Upon binding to the OCP, the S1 energy of hECN is further increased to 14,700 cm-1, underscoring the importance of protein binding which twists the conjugated carbonyl group into s-trans conformation and enhances the effect of the carbonyl group. Activated OCP, however, has an S1 energy of 14,000 cm-1, indicating that significant changes in the vicinity of the conjugated carbonyl group occur upon activation. We have determined the S1 energy of the carotenoid hydroxyechinenone (hECN) in organic solvent and compared it with the S1 energy of hECN bound to the OCP. In methanol and n-hexane, hECN has an S1 energy of 14,300 cm-1, slightly higher than carotenoids with shorter conjugation lengths such as zeaxanthin or beta-carotene; this is consistent with the proposal that the presence of the conjugated carbonyl group in hECN increases its S1 energy. Upon binding to the OCP, the S1 energy of hECN is further increased to 14,700 cm-1, underscoring the importance of protein binding which twists the conjugated carbonyl group into s-trans conformation and enhances the effect of the carbonyl group. Activated OCP, however, has an S1 energy of 14,000 cm-1, indicating that significant changes in the vicinity of the conjugated carbonyl group occur upon activation. (en)
Title	Carotenoid-protein interaction alters the S1 energy of hydroxyechinenone in the Orange Carotenoid Protein Carotenoid-protein interaction alters the S1 energy of hydroxyechinenone in the Orange Carotenoid Protein (en)
skos:prefLabel	Carotenoid-protein interaction alters the S1 energy of hydroxyechinenone in the Orange Carotenoid Protein Carotenoid-protein interaction alters the S1 energy of hydroxyechinenone in the Orange Carotenoid Protein (en)
skos:notation	RIV/60077344:_____/13:00395026!RIV14-AV0-60077344
http://linked.open...avai/riv/aktivita	I P Z
http://linked.open...avai/riv/aktivity	I, P(GA202/09/1330), Z(MSM6007665808)
http://linked.open...iv/cisloPeriodika	3
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Polívka, Tomáš
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Biologické centrum AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	64312
http://linked.open...ai/riv/idVysledku	RIV/60077344:_____/13:00395026
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	orange-carotenoid protein; excited states; photoprotection (en)
http://linked.open.../riv/klicoveSlovo	orange-carotenoid protein excited states photoprotection
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[2EDE710362FB]
http://linked.open...i/riv/nazevZdroje	Biochimica Et Biophysica Acta-Bioenergetics
http://linked.open...in/vavai/riv/obor	BO
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Excited state properties of carotenoid aggregates
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	1827
http://linked.open...iv/tvurceVysledku	Chábera, P. Polívka, Tomáš Kerfeld, C. A.
http://linked.open...ain/vavai/riv/wos	000315249000003
http://linked.open...n/vavai/riv/zamer	Fyzikální biologie -nové přístupy v biologickém výzkumu
issn	0005-2728
number of pages	7 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.bbabio.2012.10.005

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