Literature DB >> 9017185

In vivo photocycle of the Euglena gracilis photoreceptor.

L Barsanti1, V Passarelli, P L Walne, P Gualtieri.   

Abstract

We present the light-induced photocycle of the paraflagellar swelling of Euglena gracilis. The kinetics of this process was reconstructed by sampling its fluorescence emission and switching the excitation light from 365 nm to 436 nm. Stable intermediates in the photocycle were manifested. The measured millisecond resolution kinetics best fits a Michaelis-Menten equation. The data provide strong evidence that the paraflagellar swelling, a three-dimensional natural crystal of a light-detecting protein, is the true Euglena photoreceptor.

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Year:  1997        PMID: 9017185      PMCID: PMC1185583          DOI: 10.1016/s0006-3495(97)78694-6

Source DB:  PubMed          Journal:  Biophys J        ISSN: 0006-3495            Impact factor:   4.033


  18 in total

Review 1.  Two-dimensional crystallization of membrane proteins.

Authors:  W Kühlbrandt
Journal:  Q Rev Biophys       Date:  1992-02       Impact factor: 5.318

2.  Photoreceptor Pigment for Blue Light in Neurospora crassa.

Authors:  V Muñoz; W L Butler
Journal:  Plant Physiol       Date:  1975-02       Impact factor: 8.340

3.  Visual pigment fluorescence.

Authors:  A V Guzzo; G L Pool
Journal:  Science       Date:  1968-01-19       Impact factor: 47.728

4.  Fluorescence spectra of the intermediates of rhodopsin bleaching.

Authors:  A V Guzzo; G L Pool
Journal:  Photochem Photobiol       Date:  1969-06       Impact factor: 3.421

Review 5.  Simple exponential functions describing the absorbance bands of visual pigment spectra.

Authors:  D G Stavenga; R P Smits; B J Hoenders
Journal:  Vision Res       Date:  1993-05       Impact factor: 1.886

6.  Fluorescence of photoreceptor cells observed in vivo.

Authors:  N Franceschini; K Kirschfeld; B Minke
Journal:  Science       Date:  1981-09-11       Impact factor: 47.728

7.  Modified Light-Induced Absorbance Changes in dim Y Photoresponse Mutants of Trichoderma.

Authors:  B A Horwitz; C H Trad; E D Lipson
Journal:  Plant Physiol       Date:  1986-07       Impact factor: 8.340

8.  Identification of a rhodopsin photoreceptor in Euglena gracilis.

Authors:  P Gualtieri; P Pelosi; V Passarelli; L Barsanti
Journal:  Biochim Biophys Acta       Date:  1992-07-21

9.  Tryptophan phosphorescence and the conformation of liver alcohol dehydrogenase in solution and in the crystalline state.

Authors:  E Gabellieri; G B Strambini; P Gualtieri
Journal:  Biophys Chem       Date:  1988-05       Impact factor: 2.352

10.  The rhodopsin system of the squid.

Authors:  R HUBBARD; R C ST GEORGE
Journal:  J Gen Physiol       Date:  1958-01-20       Impact factor: 4.086

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  2 in total

Review 1.  Light and the evolution of vision.

Authors:  D L Williams
Journal:  Eye (Lond)       Date:  2015-11-06       Impact factor: 3.775

2.  A polychromator-based microspectrophotometer.

Authors:  Valter Evangelista; Mauro Evangelisti; Laura Barsanti; Anna Maria Frassanito; Vincenzo Passarelli; Paolo Gualtieri
Journal:  Int J Biol Sci       Date:  2007-04-01       Impact factor: 6.580

  2 in total

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