tokens: Whereas Smad2 was rapidly phosphorylated by TGF-beta and involved in the initial activation of Agc expression in confluent cells , Smad2 activation was not required for maintaining the high level of Agc expression .
folded_tokens: whereas smad2 be rapidly phosphorylate by tgf-beta and involve in the initial activation of agc expression in confluent cell , smad2 activation be not require for maintain the high level of agc expression .