using two-dimensional gel analysis of cytosolic extracts from att-20 cells , several phosphoproteins exhibited alterations in 32p incorporation in response to stimulation of the cells with either forskolin -- an activator of adenylate cyclase -- or 12-o-tetradecanoyl phorbol-13-acetate ( tpa ) -- a tumor promoting phorbol ester linked to protein kinase c activation .
C1383501
cytosolic
C0007634
cells