Journal article

On the nature of the fast light-induced charge displacement in vertebrate photoreceptors

Lindau M, Rüppel H ...see all

Photobiochemistry and Photobiophysics, vol. 9, issue 1 (1985) pp. 43-56

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Abstract

Light-induced electric fast photosignals from rod outer segment membranes oriented on cellulose filters were measured. The influence of pH and the ionic strength of the aqueous medium on the R2-generating process was investigated. There evidently is a charge displacement within the hydrophobic part of rhodopsin which has an amplitude of .apprx. 2 e.ANG. and which is not connected to the light-induced proton uptake occurring on the same time scale. A proton transfer model is presented which accounts for the observed charge displacements as well as the properties of the spectroscopically defined intermediates.

Author-supplied keywords

  • Membranes: Cell Biology
  • Metabolism
  • Radiation Biology
  • Sense Organs:
  • Sensory Reception
  • [06504] Radiation biology - Radiation and isotope
  • [06506] Radiation biology - Radiation effects and
  • [10060] Biochemistry studies - General
  • [10064] Biochemistry studies - Proteins
  • [10066] Biochemistry studies - Lipids
  • [10504] Biophysics - Methods and techniques
  • [10508] Biophysics - Membrane phenomena
  • [10515] Biophysics - Biocybernetics
  • [10604] External effects - Light and darkness
  • [13006] Metabolism - Lipids
  • [13012] Metabolism - Proteins
  • [20001] Sense organs - General and methods
  • [20004] Sense organs - Physiology and biochemistry
  • peptides and amino acids
  • ph rhodopsin model

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  • ISBN: 0165-8646
  • PUI: 15027117
  • PMID: 2713
  • SGR: 0021811906
  • ISSN: 01658646
  • SCOPUS: 2-s2.0-0021811906

Authors

  • M Lindau

  • H Rüppel

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