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  • Title: Dye-ligand chromatographic purification of intact multisubunit membrane protein complexes: application to the chloroplast H+-FoF1-ATP synthase.
    Author: Seelert H, Poetsch A, Rohlfs M, Dencher NA.
    Journal: Biochem J; 2000 Feb 15; 346 Pt 1(Pt 1):41-4. PubMed ID: 10657237.
    Abstract:
    n-Dodecyl-beta-D-maltoside was used as a detergent to solubilize the ammonium sulphate precipitate of chloroplast F(O)F(1)-ATP synthase, which was purified further by dye-ligand chromatography. Upon reconstitution of the purified protein complex into phosphatidylcholine/phosphatidic acid liposomes, ATP synthesis, driven by an artificial DeltapH/Deltapsi, was observed. The highest activity was achieved with ATP synthase solubilized in n-dodecyl-beta-D-maltoside followed by chromatography with Red 120 dye. The optimal dye for purification with CHAPS was Green 5. All known subunits were present in the monodisperse proton-translocating ATP synthase preparation obtained from chloroplasts.
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