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Nature Genetics 40, 1149–1150 (1 October 2008) | doi:10.1038/ng1008-1149

Kras and Hras|[mdash]|what is the difference?

Anton Berns

Mutations affecting the three prototype Ras oncoproteins, Hras, Nras and Kras, show a high degree of tumor-type specificity. For example, whereas Hras is often mutated in papillary thyroid cancer, Nras is often mutated in hepatocellular carcinoma, and Kras mutations are predominant in pancreatic, colorectal and non-small-cell lung carcinomas.