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Construction of a retroviral cDNA version of the int-l mammary oncogene and its expression in vitro
Author(s) -
F.A.M. Rijsewijk,
Maarten van Lohuizen,
A van Ooyen,
Roel Nusse
Publication year - 1986
Publication title -
nucleic acids research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 9.008
H-Index - 537
eISSN - 1362-4954
pISSN - 0305-1048
DOI - 10.1093/nar/14.2.693
Subject(s) - library science , biology , oncogene , cancer , classics , history , genetics , computer science , cell cycle
The int-1 mammary oncogene is activated by proviruses of the Mouse Mammary Tumor Virus in many different mammary tumors. We have inserted a genomic fragment containing the protein-encoding domain of the gene into the retroviral shuttle vector pZIPneoSV(X)1. After one round of virus replication we recovered recombinant proviral DNA containing a correctly spliced copy of int-1. In vitro transcription of this cDNA version of int-1 using SP6 polymerase and translation in a reticulocyte lysate yielded a protein of approximately 37,000 daltons. High expression of int-1 in NIH-3T3 cells infected with recombinant virus did not lead to morphological transformation.

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