rna was extracted and analyzed for expression of cellular oncogenes coding for nuclear proteins ( c-myc , c-myb , c-fos ) , the beta-chain of platelet-derived growth factor ( c-sis ) , growth factor receptors or related proteins ( c-src , c-abl , c-fes , c-erbb ) , or putative intermediate transducers of mitogenic signals ( c-ha-ras , c-ki-ras , c-n-ras ) .
C0028589
nuclear proteins
C0033684
proteins