a normal human diploid fibroblast cell strain , lederle 130 ( led 130 ) , and its virus-transformed progeny line , transformed led 130 , were subjected to 0.75 and 1.5 mm concentrations of adenosine-5'-monophosphate ( amp ) , cyclic amp ( camp ) and dibutyryl cyclic amp ( bt2camp ) .
C0001455
cyclic amp
C0012054
dibutyryl cyclic amp