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Bacteriorhodopsin analogs from diphenylpolyene chromophores

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Title Bacteriorhodopsin analogs from diphenylpolyene chromophores
 
Creator SINGH, AK
MANJULA, D
 
Subject donor-acceptor diarylbutadienes
excited-state properties
artificial bacteriorhodopsins
fluorescence probe
bovine rhodopsin
pigment analogs
purple membrane
protein
opsin
alpha,omega-diphenylpolyenes
 
Description Chromophore-modified bacteriorhodopsin (bR) analogs are prepared, to study the nature of chromophore-protein interaction as well as to develop new bR analogs that can rind applications as photoactive element in molecular electronic devices. This article describes the preparation and characterization of hitherto unknown bR analogs based on diphenylpolyene chromophores. Diphenylpolyene compounds, namely, 4-[(E)-2-phenylvinyllbenzaldehyde (1), 3-methyl-5-14[(E)-2-phenylvinyllphenyl)penta-2E,4E-dienaI (2), 4-[4-phenylbuta-IE,3E-dienyllbenzaidehyde (3) and 3-methyl-5-14-[4phenylbuta-1E,3E-dienyllphenyllpenta-2E,4E-dienaI (4), have been synthesized, and their interaction with bacterioopsin (bOP) has been studied. Whereas aidehydes 2 and 4 interact with bOP and yield bR analogs bR-2 and bR-4, aldehydes 1 and 3 do not yield any pigment. Analogs bR-2 and bR-4 have been characterized for their opsin shift, competitive binding, photochemical properties and fluorescence spectral behavior.
 
Publisher AMER SOC PHOTOBIOLOGY
 
Date 2011-07-17T06:49:47Z
2011-12-26T12:50:09Z
2011-12-27T05:36:12Z
2011-07-17T06:49:47Z
2011-12-26T12:50:09Z
2011-12-27T05:36:12Z
2003
 
Type Article
 
Identifier PHOTOCHEMISTRY AND PHOTOBIOLOGY, 78(5), 503-510
0031-8655
http://dx.doi.org/10.1562/0031-8655(2003)078<0503:BAFDC>2.0.CO;2
http://dspace.library.iitb.ac.in/xmlui/handle/10054/4644
http://hdl.handle.net/10054/4644
 
Language en