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  • Title: Serum proteins as mediators of hemin efflux from red cell membranes: specificity of hemopexin.
    Author: Solar I, Muller-Eberhard U, Shaklai N.
    Journal: FEBS Lett; 1989 Oct 09; 256(1-2):225-9. PubMed ID: 2806549.
    Abstract:
    The involvement of the serum heme-binding proteins hemopexin and albumin in the clearance of erythrocyte membranes from toxic hemin was compared. In the presence of hemopexin initial rates of hemin efflux from resealed ghosts were faster and the amount of extracted hemin larger. When hemin-containing ghosts were treated with a protein mixture of 1:45 hemopexin to albumin, as present in serum, most of the hemin was extracted in the form of heme-hemopexin. It was concluded that hemopexin is the serum protein responsible for heme extraction from cell membranes.
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