Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleMembrane exon sequences of the three Xenopus Ig classes explain the evolutionary origin of mammalian isotypes.AuthorsMußmann, Rainer; Wilson, Melanie; Marcuz, Anne; Courtet, Michèle; Du Pasquier, LouisPublicationEuropean Journal of Immunology, 1996, Vol 26, Issue 2, p409ISSN0014-2980Publication typeArticleDOI10.1002/eji.1830260221