JBC, Vol. 252, Issue 19, 6588-6590, Oct, 1977
Study of autophosphorylation of isoenzymes of cyclic AMP-dependent protein kinases
U. Walter, I. Uno, A. Y. Liu and P. Greengard
Type I and type II cyclic AMP-dependent protein kinases, present in the
cytosol from each of five rat and two bovine tissues, were separated from
one another by DEAE-cellulose column chromatography in order to study their
possible autophosphorylation. In each of the tissues studied,
autophosphorylation of the regulatory subunit of the cyclic AMP-dependent
protein kinase by the catalytic subunit could be demonstrated with the type
II enzyme but not with the type I enzyme.