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Activation of Ki-ras2 gene in human colon and lung carcinomas by two different point mutations

Abstract

Kirsten (Ki)-ras cDNA clones were prepared from human lung and colon carcinoma cell lines expressing an activated c-Ki-ras2 gene. DNA sequence analysis and transfection studies indicate that different point mutations at the same codon can activate the gene; that most human c-Ki-ras2 mRNA uses sequences from a fourth coding exon distinct from that of its viral counterpart; and that at least one cell line is functionally homozygous for the activated gene.

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Capon, D., Seeburg, P., McGrath, J. et al. Activation of Ki-ras2 gene in human colon and lung carcinomas by two different point mutations. Nature 304, 507–513 (1983). https://doi.org/10.1038/304507a0

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