Molecular weight diversity among murine class I antigens: Both the mature cell surface forms and the unglycosylated polypeptides vary significantly in molecular weight

Nicholas F. Landolfi, Mark J Soloski, Richard G. Cook

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The molecular weights of the fully glycosylated cell surface form and the unglycosylated polypeptide of five murine class I antigens (H-2Kb, Db, TL, Qa-1.1, and Qa-2) were compared by SDS-PAGE. Significant molecular weight diversity was observed for both forms among these molecules. The size of the fully glycosylated forms ranged from approximately 52,000 daltons (H-2Db) to 41,000 daltons (Qa-2), whereas the unglycosylated polypeptides ranged from 43,000 daltons (H-2Kb and TL) to 33,000 daltons (Qa-2). The magnitude of the size variation observed in the unglycosylated polypeptides implies that there are differences in the gene organization, RNA processing or post-translational modifications of various class I glycoproteins.

Original languageEnglish (US)
Pages (from-to)155-158
Number of pages4
JournalMolecular Immunology
Issue number2
Publication statusPublished - 1985


ASJC Scopus subject areas

  • Molecular Biology
  • Immunology

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