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Author | dc.contributor.author | Yang, Yang | |
Author | dc.contributor.author | Linke, Martin | |
Author | dc.contributor.author | Von Haimberger, Theodore | |
Author | dc.contributor.author | Hahn, Janina | |
Author | dc.contributor.author | Matute, Ricardo | |
Author | dc.contributor.author | González, Leticia | |
Author | dc.contributor.author | Schmieder, Peter | |
Author | dc.contributor.author | Heyne, Karsten | |
Admission date | dc.date.accessioned | 2018-12-20T15:10:36Z | |
Available date | dc.date.available | 2018-12-20T15:10:36Z | |
Publication date | dc.date.issued | 2012 | |
Cita de ítem | dc.identifier.citation | Journal of the American Chemical Society, Volumen 134, Issue 3, 2018, Pages 1408-1411 | |
Identifier | dc.identifier.issn | 00027863 | |
Identifier | dc.identifier.issn | 15205126 | |
Identifier | dc.identifier.other | 10.1021/ja209413d | |
Identifier | dc.identifier.uri | https://repositorio.uchile.cl/handle/2250/158258 | |
Abstract | dc.description.abstract | Photoisomerization of a protein bound chromophore is the basis of the light sensing and signaling responses of many photoreceptors. Z-to-E photoisomerization of the Pr Cph1Δ2 phytochrome has been investigated by polarization resolved femtosecond visible pump-infrared probe spectroscopy, which yields structural information on the Pr excited (Pr*), Pr ground, and lumi-R product states. By exhaustive search analysis, two photoreaction time constants of (4.7 ± 1.4) and (30 ± 5) ps were found. Ring D orientational change in the electronic excited state to the transition state (90° twist) has been followed in real-time. Rotation of ring D takes place in the electronically excited state with a time constant of 30 ± 5 ps. The photoisomerization is best explained by a single rotation around C 15=C 16 methine bridge in the Pr* state and a diffusive interaction with its protein surrounding. © 2012 American Chemical Society. | |
Lenguage | dc.language.iso | en | |
Type of license | dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Chile | |
Link to License | dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/cl/ | |
Source | dc.source | Journal of the American Chemical Society | |
Keywords | dc.subject | Catalysis | |
Keywords | dc.subject | Chemistry (all) | |
Keywords | dc.subject | Biochemistry | |
Keywords | dc.subject | Colloid and Surface Chemistry | |
Título | dc.title | Real-time tracking of phytochrome's orientational changes during Pr photoisomerization | |
Document type | dc.type | Artículo de revista | |
Cataloguer | uchile.catalogador | SCOPUS | |
Indexation | uchile.index | Artículo de publicación SCOPUS | |
uchile.cosecha | uchile.cosecha | SI | |
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