Activated c-Ha-ras oncogene with a guanine to thymine transversion at the twelfth codon in a human stomach cancer cell line.

نویسندگان

  • G R Deng
  • Y Y Lu
  • S M Chen
  • J Miao
  • G R Lu
  • H Li
  • H Cai
  • X L Xu
  • Z E
  • P N Liu
چکیده

The rat fibroblast cell line Rat 1 was transfected with total DNA of a gastrocarcinoma cell line, BGC-823. The transforming gene was cloned from the genomic library of the secondary transformants using in situ hybridization with a probe of the human Alu repeat sequence. This cloned gene is homologous to the protooncogene c-Ha-ras. The activation lesion of the transforming gene was identified by sequence analysis as a single nucleotide substitution of thymine for guanine in the 12th codon. This results in the substitution of valine for glycine at the 12th amino acid of the Mr 21,000 protein.

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عنوان ژورنال:
  • Cancer research

دوره 47 12  شماره 

صفحات  -

تاریخ انتشار 1987