Article
High frequency and low specificity of ras gene mutations in rat Zymbal's gland tumors induced by 2-amino-3-methylimidazo[4,5-f]quinoline.
Carcinogenesis - 1 Jul 1993
Takahashi M, Minamoto T, Sugimura T, Esumi H
Abstract excerpt
The activating mutations of all three ras genes in rat Zymbal's gland tumors induced by a food mutagen, 2-amino-3-methylimidazo[4,5- f]quinoline (IQ) were analyzed. DNA fragments of the Ha-ras, Ki-ras and N-ras oncogenes were amplified from formalin-fixed and paraffin-embedded tissues by the polymerase chain reaction (PCR) and analyzed for activating mutations involving codons 12, 13 and 61 by oligonucleotide...
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