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The World of Protozoa, Rotifera, Nematoda and Oligochaeta

Ref ID : 4387

Arie Ron, Norman E. Williams, and F. Paul Doerder; The Immobilization Antigens of Tetrahymena thermophila Are Glycoproteins. J.Protozool. 39(4):508-510, 1992

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The four immobilization antigens controlled by the SerH locus in Tetrahymena thermophila have been isolated and partially characterized (Doerder, F.P. & Berkowitz, M.S. 1986. Purification and partical characterization of the H immobilization antigens of Tetrahymena thermophila. J.Protozool., 33:204-208). We show here, using immunoprecipitation and electrophoresis after labeling with [35S]-methionine, [14C]-mannose, [14C]-glucosamine, and N-Acetyl-D-[1-3H]glucosamine, that these proteins are glycosylated. We suggest the immobilization antigens in Tetrahymena may be anchored to the surface membrane by phosphatidylinositol glycans.