syrian hamster embryo fibroblasts transformed by 4-nitroquinoline-1-oxide ( nqt-she cells ) failed to synthesize the pro-alpha 1 ( i ) subunit of type i procollagen but continued to synthesize altered forms of the other subunit , pro-alpha 2 ( i ) ( peterkofsky , b. , and prather , w. ( 1986 ) j. biol . chem . 261 , 16818-16826 ) .
C0016030
fibroblasts
C0007634
cells