Multiple independent activations of the neu oncogene by a point mutation altering the transmembrane domain of p185

Cornelia I. Bargmann, Mien Chie Hung, Robert A. Weinberg

Research output: Contribution to journalArticlepeer-review

924 Scopus citations

Abstract

The neu oncogene, which is frequently activated in neuro- and glloblastomas of BDIX rats, was originally identified in the NIH 3T3 focus-forming assay. cDNA clones of the normal and transforming alleles of neu have been isolated. When these clones are inserted into the expression vector pSV2, they direct the synthesis of p185, the neu gene product. The transforming cDNA clone yields foci when transfected onto a NIH 3T3 monolayer, but the normal cDNA does not. The construction of in vitro recombinants between the normal and transforming cDNAs has allowed the determination of the mutation responsible for the activation of the neu proto-oncogene. A single point mutation changes a valine in the transmembrane domain of the predicted protein product insert to a glutamic acid. The DNAs from four independent cell lines containing activated neu oncogenes contain the identical mutation at this position.

Original languageEnglish (US)
Pages (from-to)649-657
Number of pages9
JournalCell
Volume45
Issue number5
DOIs
StatePublished - Jun 6 1986

ASJC Scopus subject areas

  • General Biochemistry, Genetics and Molecular Biology

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