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Statements

Subject Item
n2:RIV%2F60077344%3A_____%2F13%3A00395026%21RIV14-AV0-60077344
rdf:type
skos:Concept n13:Vysledek
dcterms: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.
dcterms: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
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
skos:notation
RIV/60077344:_____/13:00395026!RIV14-AV0-60077344
n13:predkladatel
n19:ico%3A60077344
n3:aktivita
n11:Z n11:I n11:P
n3:aktivity
I, P(GA202/09/1330), Z(MSM6007665808)
n3:cisloPeriodika
3
n3:dodaniDat
n17:2014
n3:domaciTvurceVysledku
n15:4395263
n3:druhVysledku
n14:J
n3:duvernostUdaju
n12:S
n3:entitaPredkladatele
n8:predkladatel
n3:idSjednocenehoVysledku
64312
n3:idVysledku
RIV/60077344:_____/13:00395026
n3:jazykVysledku
n4:eng
n3:klicovaSlova
orange-carotenoid protein; excited states; photoprotection
n3:klicoveSlovo
n6:excited%20states n6:photoprotection n6:orange-carotenoid%20protein
n3:kodStatuVydavatele
NL - Nizozemsko
n3:kontrolniKodProRIV
[2EDE710362FB]
n3:nazevZdroje
Biochimica Et Biophysica Acta-Bioenergetics
n3:obor
n20:BO
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
3
n3:projekt
n16:GA202%2F09%2F1330
n3:rokUplatneniVysledku
n17:2013
n3:svazekPeriodika
1827
n3:tvurceVysledku
Chábera, P. Polívka, Tomáš Kerfeld, C. A.
n3:wos
000315249000003
n3:zamer
n5:MSM6007665808
s:issn
0005-2728
s:numberOfPages
7
n18:doi
10.1016/j.bbabio.2012.10.005