Characterization of Sp-5,6-dichloro-1-<i>β</i>-<scp>d</scp>-ribofuranosylbenzimidazole- 3′,5′-monophosphorothioate (Sp-5,6-DCl-cBiMPS) as a potent and specific activator of cyclic-AMP-dependent protein kinase in cell extracts and intact cellsMårten Sandberg, Ulrich Walter, Maria Halbrügge et al.|Biochemical Journal|1991Cited by 137