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

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F13%3A00395026" target="_blank" >RIV/60077344:_____/13:00395026 - isvavai.cz</a>

Alternative codes found

RIV/60076658:12310/13:43885282

Result on the web

<a href="http://dx.doi.org/10.1016/j.bbabio.2012.10.005" target="_blank" >http://dx.doi.org/10.1016/j.bbabio.2012.10.005</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.bbabio.2012.10.005" target="_blank" >10.1016/j.bbabio.2012.10.005</a>

Result language

angličtina

Original language name

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

Original language 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.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BO - Biophysics

OECD FORD branch

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Project

<a href="/en/project/GA202%2F09%2F1330" target="_blank" >GA202/09/1330: Excited state properties of carotenoid aggregates</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2013

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Biochimica Et Biophysica Acta-Bioenergetics

ISSN

0005-2728

e-ISSN

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Volume of the periodical

1827

Issue of the periodical within the volume

3

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

7

Pages from-to

248-254

UT code for WoS article

000315249000003

EID of the result in the Scopus database

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