Amplification of a novel v-erbB-related gene in a human mammary carcinoma

Science. 1985 Sep 6;229(4717):974-6. doi: 10.1126/science.2992089.


The cellular gene encoding the receptor for epidermal growth factor (EGF) has considerable homology to the oncogene of avian erythroblastosis virus. In a human mammary carcinoma, a DNA sequence was identified that is related to v-erbB but amplified in a manner that appeared to distinguish it from the gene for the EGF receptor. Molecular cloning of this DNA segment and nucleotide sequence analysis revealed the presence of two putative exons in a DNA segment whose predicted amino acid sequence was closely related to, but different from, the corresponding sequence of the erbB/EGF receptor. Moreover, this DNA segment identified a 5-kilobase transcript distinct from the transcripts of the EGF receptor gene. Thus, a new member of the tyrosine kinase proto-oncogene family has been identified on the basis of its amplification in a human mammary carcinoma.

MeSH terms

  • Amino Acid Sequence
  • Base Sequence
  • Breast Neoplasms / genetics*
  • Cell Line
  • Cloning, Molecular
  • DNA, Neoplasm / genetics*
  • ErbB Receptors
  • Female
  • Gene Amplification*
  • Gene Expression Regulation
  • Humans
  • Oncogenes*
  • Protein Kinases / genetics*
  • Protein-Tyrosine Kinases
  • Proto-Oncogene Mas
  • Receptors, Cell Surface / genetics*


  • DNA, Neoplasm
  • MAS1 protein, human
  • Proto-Oncogene Mas
  • Receptors, Cell Surface
  • Protein Kinases
  • ErbB Receptors
  • Protein-Tyrosine Kinases

Associated data

  • GENBANK/N00027