sequences of the hepatitis b virus ( hbv ) genome coding for the surface antigen ( hbsag ) , but lacking the regulatory ( pres ) sequences , were cloned into a bovine papillomavirus ( bpv ) vector consisting of the transforming 69 % of the bpv genome ( bpv 69t ) , and transformed into mouse c127 cells .
C0015295
sequences
C0007634
cells