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  • Title: Type I macrophage scavenger receptor contains alpha-helical and collagen-like coiled coils.
    Author: Kodama T, Freeman M, Rohrer L, Zabrecky J, Matsudaira P, Krieger M.
    Journal: Nature; 1990 Feb 08; 343(6258):531-5. PubMed ID: 2300204.
    Abstract:
    The macrophage scavenger receptor is a trimeric membrane glycoprotein with unusual ligand-binding properties which has been implicated in the development of atherosclerosis. The trimeric structure of the bovine type I scavenger receptor, deduced by complementary DNA cloning, contains three extracellular C-terminal cysteine-rich domains connected to the transmembrane domain by a long fibrous stalk. This stalk structure, composed of an alpha-helical coiled coil and a collagen-like triple helix, has not previously been observed in an integral membrane protein.
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