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Journal of Experimental Medicine, Vol 171, 565-570, Copyright © 1990 by Rockefeller University Press
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K Ritter, H Brestrich, B Nellen, H Kratzin, H Eiffert and R Thomssen
Department of Medical Microbiology, University of Gottingen, Federal Republic of Germany.
In sera from patients with acute EBV, infection and the clinical symptoms of infectious mononucleosis antibodies of the Ig class M were found that are directed against two cellular proteins. The molecular mass of these proteins was determined to be 29 (p29) and 26 kD (p26), respectively, in SDS-PAGE. P29 was identified as part of the glycolytic enzyme triosephosphate isomerase (TPI) by comparison of the NH2- terminal amino acid sequences. A purified antibody against TPI induces a 51Cr release from human erythrocytes. Possibly, anti-TPI causes hemolysis, which is an infrequent but serious symptom of infectious mononucleosis.
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