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  • 标题:Multiple differences between the nucleic acid sequences of the IgG2aa and IgG2ab alleles of the mouse
  • 本地全文:下载
  • 作者:P H Schreier ; A L Bothwell ; B Mueller-Hill
  • 期刊名称:Proceedings of the National Academy of Sciences
  • 印刷版ISSN:0027-8424
  • 电子版ISSN:1091-6490
  • 出版年度:1981
  • 卷号:78
  • 期号:7
  • 页码:4495-4499
  • DOI:10.1073/pnas.78.7.4495
  • 语种:English
  • 出版社:The National Academy of Sciences of the United States of America
  • 摘要:To compare the structure of IgG2a alleles we have determined the complete DNA sequence of the constant region, coding sequence, and 3' untranslated region of a cDNA clone, pAB gamma 2a-1, which was derived from the C57BL/6 mouse strain (b allotype). This sequence was compared with the corresponding IgG2a DNA sequence of BALB/c origin (a allotype). The DNA sequences showed 10% differences, and the deduced protein sequences differed by about 15%. These differences were not evenly distributed: most differences were in the hinge region, the CH3 domain and the 3' untranslated region. It is evident that many alterations in the IgG2a alleles have occurred since the a and b haplotypes were separated--some of these changes were point mutations but some appear to have resulted from gene conversion of the IgG2ab allele by the IgG2bb allele.
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