 He spent the following months extending his research, eventually discovering that such oncogene was the mutation of an allele of the Ras subfamily, as well as its activation mechanism.In 2003 he proved that the enzyme CDK2, until then believed to be indispensable in cellular division, was not necessary in order for DNA replication to take place.His scientific career has been awarded with prizes such as the Distinguished Young Scientist Award (1983), the King Juan Carlos I Science award (1984), the Rhodes Memorial award (1985) and the Charles Rodolphe Brupbacher (2005).