Literature DB >> 890060

Primary photophysical and photochemical processes in visual excitation.

A Lewis.   

Abstract

The color of visual pigments is experimentally shown to be controlled by excited state effects. These effects which define the primary absorption of light by rhodopsin are considered together with results obtained from emission and picosecond spectroscopy. In addition, the molecular changes induced in rhodopsin when a photon is absorbed are analyzed using resonance Raman spectroscopy. The molecular changes observed are compared in bacterial and photoreceptor rhodopsins. This comparison yields a unique explanation for the biological role of the cis-trans isomerization in visual transduction.

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Year:  1977        PMID： 890060     DOI： 10.1007/bf00535800

Source DB:  PubMed          Journal:  Biophys Struct Mech        ISSN： 0340-1057


  12 in total

1.  Rapid-flow resonance Raman spectroscopy of photolabile molecules: rhodopsin and isorhodopsin.

Authors:  R Mathies; A R Oseroff; L Stryer
Journal:  Proc Natl Acad Sci U S A       Date:  1976-01       Impact factor: 11.205

2.  Modeling the resonance Raman spectrum of a metarhodopsin: implications for the color of visual pigments.

Authors:  M Sulkes; A Lewis; A T Lemley; R Cookingham
Journal:  Proc Natl Acad Sci U S A       Date:  1976-12       Impact factor: 11.205

3.  Tunable laser resonance Raman spectroscopic investigations of the transduction process in vertebrate rod cells.

Authors:  A Lewis
Journal:  Fed Proc       Date:  1976-01

4.  Observation of light emission from a rhodopsin.

Authors:  A Lewis; J P Spoonhower; G J Perreault
Journal:  Nature       Date:  1976-04-22       Impact factor: 49.962

5.  Picosecond kinetics of the fluorescence from the chromophore of the purple membrane protein of Halobacterium halobium.

Authors:  R R Alfano; R Govindjee; B Becher; T G Ebrey
Journal:  Biophys J       Date:  1976-05       Impact factor: 4.033

6.  A method for measuring picosecond phenomena in photolabile species: the emission lifetime of bacteriorhodopsin.

Authors:  M D Hirsch; M A Marcus; A Lewis; H Mahr; N Frigo
Journal:  Biophys J       Date:  1976-12       Impact factor: 4.033

7.  Resonance Raman spectroscopy of rhodopsin in retinal disk membranes.

Authors:  A R Oseroff; R H Callender
Journal:  Biochemistry       Date:  1974-09-24       Impact factor: 3.162

8.  Tunable laser resonance raman spectroscopy of bacteriorhodopsin.

Authors:  A Lewis; J Spoonhower; R A Bogomolni; R H Lozier; W Stoeckenius
Journal:  Proc Natl Acad Sci U S A       Date:  1974-11       Impact factor: 11.205

9.  Formation and decay of prelumirhodopsin at room temperatures.

Authors:  G E Busch; M L Applebury; A A Lamola; P M Rentzepis
Journal:  Proc Natl Acad Sci U S A       Date:  1972-10       Impact factor: 11.205

10.  Molecular flow resonance Raman effect from retinal and rhodopsin.

Authors:  R H Callender; A Doukas; R Crouch; K Nakanishi
Journal:  Biochemistry       Date:  1976-04-20       Impact factor: 3.162
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  3 in total

1.  Experimental evidence for secondary protein-chromophore interactions at the Schiff base linkage in bacteriorhodopsin: Molecular mechanism for proton pumping.

Authors:  A Lewis; M A Marcus; B Ehrenberg; H Crespi
Journal:  Proc Natl Acad Sci U S A       Date:  1978-10       Impact factor: 11.205

2.  The molecular mechanism of excitation in visual transduction and bacteriorhodopsin.

Authors:  A Lewis
Journal:  Proc Natl Acad Sci U S A       Date:  1978-02       Impact factor: 11.205

3.  What does Halobacterium tell us about photoreception?

Authors:  E Hildebrand
Journal:  Biophys Struct Mech       Date:  1977-04-21
  3 in total

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