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8/22/2014 11:42:00 AM | Browse: 1118 | Download: 1339
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Received |
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2013-11-24 12:08 |
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Peer-Review Started |
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2013-11-24 14:02 |
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First Decision by Editorial Office Director |
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Return for Revision |
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2013-12-26 20:25 |
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Revised |
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2014-02-10 12:32 |
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Publication Fee Transferred |
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Second Decision by Editor |
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2014-04-17 14:46 |
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Second Decision by Editor-in-Chief |
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Final Decision by Editorial Office Director |
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2014-04-17 15:07 |
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Articles in Press |
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Edit the Manuscript by Language Editor |
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Typeset the Manuscript |
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2014-05-22 14:39 |
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Publish the Manuscript Online |
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2014-06-11 10:30 |
| Category |
Biochemistry & Molecular Biology |
| Manuscript Type |
Autobiography |
| Article Title |
Binding of rhodopsin and rhodopsin analogues to transducin, rhodopsin kinase and arrestin-1
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| Manuscript Source |
Invited Manuscript |
| All Author List |
Nelson A Araujo, Carlos E Sanz-Rodríguez and José Bubis |
| Funding Agency and Grant Number |
| Funding Agency |
Grant Number |
| FONACIT, Caracas, Venezuela |
S1-2000000514 |
| FONACIT, Caracas, Venezuela |
LAB-2000001639 |
| Decanato de Investigación y Desarrollo, Universidad Simón Bolívar, Caracas, Venezuela |
S1-IN-CB-001-09 |
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| Corresponding Author |
José Bubis, PhD, Departamento de Biología Celular, Universidad Simón Bolívar, Apartado 89000, Valle de Sartenejas, Baruta, Caracas 1081-A, Venezuela. jbubis@usb.ve |
| Key Words |
Rhodopsin; Rhodopsin analogues; 9-cis-Retinal; 11-cis-Retinal; 13-cis-Retinal; Photointermediates; Transducin; Rhodopsin kinase; Arrestin-1; Visual process |
| Core Tip |
Rhodopsin is a specialized G protein-coupled receptors composed of a single polypeptide chain, opsin, and a covalently linked 11-cis-retinal. It is well known that rhodopsin uses the 11-cis form of retinal exclusively as the chromophore. Retinal analogues have long been used to probe the chromophore binding pocket and to study ligand-protein relationships to better understand the photochemical cis-trans isomerization of rhodopsin. However, little is known about the interactions of rhodopsin analogues with other proteins in the visual cascade. Here, we were able to reconstitute a rhodopsin analogue containing 13-cis-retinal. We compared the binding of reconstituted rhodopsin, 9-cis-retinal-rhodopsin and 13-cis-retinal-rhodopsin to transducin, rhodopsin kinase and arrestin-1, both in the dark and under illumination. Interestingly, we found that in the dark the rhodopsin analogue containing the 13-cis isomer of retinal appears to fold in a pseudo-active conformation that mimics the active photointermediate of rhodopsin. |
| Publish Date |
2014-06-11 10:30 |
| Citation |
Araujo NA, Sanz-Rodríguez CE, Bubis J. Binding of rhodopsin and rhodopsin analogues to transducin, rhodopsin kinase and arrestin-1. World J Biol Chem 2014; 5(2): 254-268
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| URL |
http://www.wjgnet.com/1949-8454/full/v5/i2/254.htm |
| DOI |
http://dx.doi.org/10.4331/wjbc.v5.i2.254 |
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