Charge motion during the photocycle of bacteriorhodopsin

A. Dér, L. Keszthelyi

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

The function of bacteriorhodopsin in Halobacterium salinarum is to pump protons from the internal side of the plasma membrane to the external after light excitation, thereby building up electrochemical energy. This energy is transduced into biological energy forms. This review deals with one of the methods elaborated for recording the charge transfer inside the protein. In this method the current produced in oriented purple membrane containing bacteriorhodopsin is measured. It is shown that this method might be applied not only to correlate charge motion with the photocycle reactions but also for general problems like effect of water, electric field, and different ions and buffers for the functioning of proteins.

Original languageEnglish
Pages (from-to)1234-1248
Number of pages15
JournalBiochemistry (Moscow)
Volume66
Issue number11
DOIs
Publication statusPublished - Nov 2001

Fingerprint

Bacteriorhodopsins
Proton Pumps
Cell membranes
Purple Membrane
Halobacterium salinarum
Charge transfer
Buffers
Proteins
Electric fields
Ions
Membranes
Water
Cell Membrane
Light

Keywords

  • Bacteriorhodopsin
  • Charge motion
  • Photocycle

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Biochemistry

Cite this

Charge motion during the photocycle of bacteriorhodopsin. / Dér, A.; Keszthelyi, L.

In: Biochemistry (Moscow), Vol. 66, No. 11, 11.2001, p. 1234-1248.

Research output: Contribution to journalArticle

Dér, A. ; Keszthelyi, L. / Charge motion during the photocycle of bacteriorhodopsin. In: Biochemistry (Moscow). 2001 ; Vol. 66, No. 11. pp. 1234-1248.
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