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  • 标题:Alternative splicing produces transcripts encoding two forms of the alpha subunit of GTP-binding protein Go
  • 本地全文:下载
  • 作者:M Strathmann ; T M Wilkie ; M I Simon
  • 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:1990
  • 卷号:87
  • 期号:17
  • 页码:6477-6481
  • DOI:10.1073/pnas.87.17.6477
  • 语种:English
  • 出版社:The National Academy of Sciences of the United States of America
  • 摘要:The alpha subunit of the guanine nucleotide-binding protein Go ("o" for other) is believed to mediate signal transduction between a variety of receptors and effectors. cDNA clones encoding two forms of Go alpha subunit were isolated from a mouse brain library. These two forms, which we call GoA alpha and GoB alpha, appear to be the products of alternative splicing. GoA alpha differs from GoB alpha over the C-terminal third of the deduced protein sequence. Both forms are predicted to be substrates for ADP-ribosylation by pertussis toxin. GoA alpha transcripts are present in a variety of tissues but are most abundant in brain. The GoB alpha transcript is expressed at highest levels in brain and testis. It is possible that GoA alpha and GoB alpha have different functions.
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