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  • Title: A detergent-induced charge shift as a prerequisite for the electrochemical analysis of the adenine nucleotide translocator, a basic membrane protein.
    Author: Schultheiss HP, Bjerrum OJ, Klingenberg M.
    Journal: Biochim Biophys Acta; 1984 Apr 11; 771(2):235-40. PubMed ID: 6322849.
    Abstract:
    The adenine nucleotide translocator is a hydrophobic, basic protein of the inner mitochondrial membrane which is solubilized by the non-ionic detergent Triton X-100. For immunochemical characterization of this membrane-protein by crossed immunoelectrophoresis a charge shift of the protein-Triton X-100 micelle by the introduction of an ionic detergent (deoxycholate) was necessary as a prerequisite to avoid unspecific precipitation of the protein. Beside the charge shift of the protein-detergent micelle, the selection, concentration and ratio of the detergents used and the choice of the agarose with different degrees of electroendosmosis should be carefully considered. The principle derived from these results provides a new methodological possibility for the immunochemical characterization of hydrophobic, basic membrane proteins.
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