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. 1984 Jul;81(13):4008–4012. doi: 10.1073/pnas.81.13.4008

Analysis of the transforming potential of the human H-ras gene by random mutagenesis.

O Fasano, T Aldrich, F Tamanoi, E Taparowsky, M Furth, M Wigler
PMCID: PMC345357  PMID: 6330729

Abstract

Some tumor cells contain mutant ras genes that are capable of transforming NIH 3T3 cells. Those genes that have been analyzed arise from the wild-type, non-transforming ras genes by mutations producing single amino acid substitutions at position 12 or 61 of the encoded protein. We have performed random bisulfite-induced mutagenesis on the cloned wild-type human H-ras gene to find if mutations at other positions can activate the transforming potential of that gene. Most mutations are not activating, but mutations that specify single amino acid substitutions at position 12, 13, 59, or 63 of the encoded protein do activate the transforming potential of the H-ras gene. Some, but not all, mutant ras proteins show an altered electrophoretic mobility in NaDodSO4/polyacrylamide gels.

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Selected References

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