Effect of high pressure on the light-induced structural change of bacteriorhodopsin reconstituted in liposome

Dong Gon Park, Sang Sung Nam, Keon Kim, Hyoungman Kim

    Research output: Contribution to journalArticlepeer-review

    1 Citation (Scopus)

    Abstract

    Bacteriorhodopsin (BR) is reconstituted into multilamellar phosphatidylcholine vesicles. When this reconstituted bacteriorhodopsin is under high pressure without illumination, a structural transition, in which the absorption maximum of the retinal changes from 560 nm to 500 nm, occurs reversibly. Upon illumination, bacteriorhodopsin reconstituted into vesicles is denatured irreversibly and, under high pressure, a 460-nm absorption peak of the chromophore appears transiently.

    Original languageEnglish
    Pages (from-to)19-22
    Number of pages4
    JournalBBA - Bioenergetics
    Volume973
    Issue number1
    DOIs
    Publication statusPublished - 1989 Jan

    Bibliographical note

    Funding Information:
    This work was supported by the Korean Science and Engineering Foundation (to K.K.).

    Keywords

    • Bacteriorhodopsin
    • High pressure
    • Photocycle
    • Reconstitution
    • Spectroscopy

    ASJC Scopus subject areas

    • Biophysics
    • Biochemistry
    • Cell Biology

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