Electro-optical measurements on aqueous suspension of purple membrane from Halobacterium halobium.

K. Barabás, A. Dér, Z. Dancsházy, P. Ormos, L. Keszthelyi, M. Marden

Research output: Contribution to journalArticle

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Abstract

The permanent dipole moment, polarizability, and the retinal angle of Halobacterium halobium purple membranes were determined at different pH values. All of the parameters have a maximum between pH 5 and 6. There is a reversal in the direction of the permanent dipole moment near pH 5. The value of permanent dipole moment was determined to be 60 D/protein at pH 6.6, and the value obtained for polarizability was 3 X 10(-28) Fm2/membrane fragment. The retinal angle of all-trans retinal was 0.8 degrees smaller than that of the 13-cis conformation.

Original languageEnglish
Pages (from-to)5-11
Number of pages7
JournalBiophysical Journal
Volume43
Issue number1
Publication statusPublished - Jul 1983

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Purple Membrane
Halobacterium salinarum
Suspensions
Membranes
Proteins

ASJC Scopus subject areas

  • Biophysics

Cite this

Electro-optical measurements on aqueous suspension of purple membrane from Halobacterium halobium. / Barabás, K.; Dér, A.; Dancsházy, Z.; Ormos, P.; Keszthelyi, L.; Marden, M.

In: Biophysical Journal, Vol. 43, No. 1, 07.1983, p. 5-11.

Research output: Contribution to journalArticle

Barabás, K, Dér, A, Dancsházy, Z, Ormos, P, Keszthelyi, L & Marden, M 1983, 'Electro-optical measurements on aqueous suspension of purple membrane from Halobacterium halobium.', Biophysical Journal, vol. 43, no. 1, pp. 5-11.
Barabás, K. ; Dér, A. ; Dancsházy, Z. ; Ormos, P. ; Keszthelyi, L. ; Marden, M. / Electro-optical measurements on aqueous suspension of purple membrane from Halobacterium halobium. In: Biophysical Journal. 1983 ; Vol. 43, No. 1. pp. 5-11.
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