a 4.4-kilobase dna fragment ( t4.4 ) from a human tumor ( comprising part of the human papillomavirus type 16 e6 promoter ; the e6 , e7 , and part of the e1 open reading frames ; and cellular sequences ) was found to be competent to fully transform nih 3t3 cells .
C0079941
open
C0007634
cellular