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  • Title: Refolding of riboflavin carrier protein as probed by biochemical and immunological parameters.
    Author: Velu NK, Karande AA, Adiga PR.
    Journal: Biochim Biophys Acta; 1996 Apr 16; 1293(2):231-7. PubMed ID: 8620034.
    Abstract:
    The unfolding of the chicken egg white riboflavin carrier protein by disulfide reduction with dithiothreitol led to aggregation with concomitant loss of ligand binding characteristics and the capacity to interact with six monoclonal antibodies directed against surface-exposed discontinuous epitopes. The reduced protein could, however, bind to a monoclonal antibody recognizing sequential epitope. Under optimal conditions of protein refolding, the vitamin carrier protein regained its folded structure with high efficiency with simultaneous complete restoration of hydrophobic flavin binding site as well as the epitopic conformations exposed at the surface in a manner comparable to its native form.
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