Bacteriorhodopsin as a possible chloride pump

FEBS Letters

Dér, András¹  Tóth-Boconádi, Rudolf¹  Keszthelyi, Lajos¹ 

[1] Institute of Biophysics, Biological Research Center of the Hungarian Academy of Sciences, H-6701 Szeged, P.O.B. 521, Hungary

关键词: Bacteriorhodopsin;    Membrane;    oriented purple;    Photocurrent;    Chloride pump;   

DOI  :  10.1016/0014-5793(89)81485-1

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

Purple membranes oriented and immobilized in gel show charge transfer at pH 0.55 if the pH is set by HCl. Current appears as laser flash driven transient and also as continuous current by quasi-continuous illumination. If the pH value 0.55 is set by H₂SO₄ continuous current is not observed. The results suggest that bacteriorhodopsin may pump chloride ions at low pH.

【 授权许可】

Unknown