Quantum efficiency of the bacteriorhodopsin photocycle

L. Keszthelyi, R. Tóth-Boconádi, A. Dér

Research output: Contribution to journalArticle

Abstract

The electric signal corresponding to the M-O transition of the bacteriorhodopsin photocycle (L. Keszthelyi and P. Ormos, J. Membr. Biol., 109 (1989) 193) was measured by trains of exciting laser pulses of highly different intensities in order to test a photocycle model suggested earlier (Birge, J. Am. Chem. Soc., 111 (1989) 4063). A transition from high quantum efficiency to low, a prerequisite for the model at issue, should have produced an observable transition in the amplitude of electric pulses from high to low values but it was absent. To check the method the known transition from dark to light adaptation was recorded and the cross section for light adaptation determined.

Original languageEnglish
Pages (from-to)13-17
Number of pages5
JournalJournal of Molecular Structure
Volume297
Issue numberC
DOIs
Publication statusPublished - Aug 13 1993

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Ocular Adaptation
Bacteriorhodopsins
Quantum efficiency
quantum efficiency
light adaptation
Electron transitions
Laser pulses
Lasers
electric pulses
cross sections
pulses
lasers

ASJC Scopus subject areas

  • Structural Biology
  • Organic Chemistry
  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Materials Science (miscellaneous)
  • Atomic and Molecular Physics, and Optics

Cite this

Quantum efficiency of the bacteriorhodopsin photocycle. / Keszthelyi, L.; Tóth-Boconádi, R.; Dér, A.

In: Journal of Molecular Structure, Vol. 297, No. C, 13.08.1993, p. 13-17.

Research output: Contribution to journalArticle

Keszthelyi, L. ; Tóth-Boconádi, R. ; Dér, A. / Quantum efficiency of the bacteriorhodopsin photocycle. In: Journal of Molecular Structure. 1993 ; Vol. 297, No. C. pp. 13-17.
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