Literature DB >> 15938054

The photocycle of the chloride pump halorhodopsin. II: Quantum yields and a kinetic model.

D Oesterhelt1, P Hegemann, J Tittor.   

Abstract

The quantum yield of the primary photoreaction of HR478 was determined as phi(green) = 0.34 +/- 0.02 and that of the photochemical reconversion of HRL410 into HR578 as phi(blue) = 0.01 +/- 0.004. From steady-state illumination and flash-photolysis experiments, a quantitative description of HRL410 formation and decay was made leading to a model of the photocycle in isolated, light-adapted HR. This model satisfies all known facts about HR including its photochronic behaviour.

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Year:  1985        PMID： 15938054      PMCID： PMC554509          DOI： 10.1002/j.1460-2075.1985.tb03938.x

Source DB:  PubMed          Journal:  EMBO J        ISSN： 0261-4189            Impact factor:   11.598


  14 in total

1.  On the primary quantum yields in the bacteriorhodopsin photocycle.

Authors:  C R Goldschmidt; M Ottolenghi; R Korenstein
Journal:  Biophys J       Date:  1976-07       Impact factor: 4.033

2.  Reversible photolysis of the purple complex in the purple membrane of Halobacterium halobium.

Authors:  D Oesterhelt; B Hess
Journal:  Eur J Biochem       Date:  1973-08-17

3.  Picosecond events in the photochemical cycle of the light-driven chloride-pump halorhodopsin.

Authors:  H J Polland; M A Franz; W Zinth; W Kaiser; P Hegemann; D Oesterhelt
Journal:  Biophys J       Date:  1985-01       Impact factor: 4.033

4.  Evidence for a halide-binding site in halorhodopsin.

Authors:  B Schobert; J K Lanyi; E J Cragoe
Journal:  J Biol Chem       Date:  1983-12-25       Impact factor: 5.157

5.  Changes in the protonation state of bacterio-opsin during reconstitution of bacteriorhodopsin.

Authors:  U C Fischer; D Oesterhelt
Journal:  Biophys J       Date:  1980-07       Impact factor: 4.033

Review 6.  Bacteriorhodopsin and related pigments of halobacteria.

Authors:  W Stoeckenius; R A Bogomolni
Journal:  Annu Rev Biochem       Date:  1982       Impact factor: 23.643

7.  Energy transfer in the purple membrane of Halobacterium halobium.

Authors:  J B Hurley; T G Ebrey
Journal:  Biophys J       Date:  1978-04       Impact factor: 4.033

8.  Two photocycles in halobacterium halobium that lacks bacteriorhodopsin.

Authors:  M Tsuda; N Hazemoto; M Kondo; N Kamo; Y Kobatake; Y Terayama
Journal:  Biochem Biophys Res Commun       Date:  1982-10-15       Impact factor: 3.575

9.  The photocycle of the chloride pump halorhodopsin. I: Azide-catalyzed deprotonation of the chromophore is a side reaction of photocycle intermediates inactivating the pump.

Authors:  P Hegemann; D Oesterbelt; M Steiner
Journal:  EMBO J       Date:  1985-09       Impact factor: 11.598

10.  Isolation and properties of the native chromoprotein halorhodopsin.

Authors:  M Steiner; D Oesterhelt
Journal:  EMBO J       Date:  1983       Impact factor: 11.598
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  29 in total

Review 1.  Bioenergetics of the Archaea.

Authors:  G Schäfer; M Engelhard; V Müller
Journal:  Microbiol Mol Biol Rev       Date:  1999-09       Impact factor: 11.056

2.  Characterization of the azide-dependent bacteriorhodopsin-like photocycle of salinarum halorhodopsin.

Authors:  Melinda Lakatos; Géza I Groma; Constanta Ganea; Janos K Lanyi; György Váró
Journal:  Biophys J       Date:  2002-04       Impact factor: 4.033

Review 3.  A unifying concept for ion translocation by retinal proteins.

Authors:  D Oesterhelt; J Tittor; E Bamberg
Journal:  J Bioenerg Biomembr       Date:  1992-04       Impact factor: 2.945

4.  Characterization of the primary photochemistry of proteorhodopsin with femtosecond spectroscopy.

Authors:  Alisa Rupenyan; Ivo H M van Stokkum; Jos C Arents; Rienk van Grondelle; Klaas Hellingwerf; Marie Louise Groot
Journal:  Biophys J       Date:  2008-01-30       Impact factor: 4.033

5.  Quantum efficiency of the photochemical cycle of bacteriorhodopsin.

Authors:  R Govindjee; S P Balashov; T G Ebrey
Journal:  Biophys J       Date:  1990-09       Impact factor: 4.033

6.  Early picosecond events in the photocycle of bacteriorhodopsin.

Authors:  H J Polland; M A Franz; W Zinth; W Kaiser; E Kölling; D Oesterhelt
Journal:  Biophys J       Date:  1986-03       Impact factor: 4.033

7.  Temperature jump study of charge translocation during the bacteriorhodopsin photocycle.

Authors:  H J Butt; K Fendler; A Dér; E Bamberg
Journal:  Biophys J       Date:  1989-11       Impact factor: 4.033

8.  The photochemical cycle of halorhodopsin: absolute spectra of intermediates obtained by flash photolysis and fast difference spectra measurements.

Authors:  J Tittor; D Oesterhelt; R Maurer; H Desel; R Uhl
Journal:  Biophys J       Date:  1987-12       Impact factor: 4.033

9.  Bi-stable neural state switches.

Authors:  André Berndt; Ofer Yizhar; Lisa A Gunaydin; Peter Hegemann; Karl Deisseroth
Journal:  Nat Neurosci       Date:  2008-12-08       Impact factor: 24.884

10.  Influence of the charge at D85 on the initial steps in the photocycle of bacteriorhodopsin.

Authors:  Constanze Sobotta; Markus Braun; Jörg Tittor; D Oesterhelt; Wolfgang Zinth
Journal:  Biophys J       Date:  2009-07-08       Impact factor: 4.033
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