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

  • Guoren Deng
  • , Shiming Chen
  • , Jing Miao
  • , Hua Li
  • , Hong Cai
  • , Peinan Liu

Research output: Contribution to journalArticlepeer-review

49 Scopus citations

Abstract

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 Mr21,000 protein.

Original languageEnglish
Pages (from-to)3195-3198
Number of pages4
JournalCancer research
Volume47
Issue number12
StatePublished - Jun 15 1987

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