Article
p85 regulatory subunit of PI3K mediates cAMP-PKA and estrogens biological effects on growth and survival.
Oncogene - 29 Mar 2007
Cosentino C, Di Domenico M, Porcellini A, Cuozzo C, De Gregorio G, Santillo M R, Agnese S, Di Stasio R, Feliciello A, Migliaccio A, Avvedimento E V
Abstract excerpt
Cyclic adenosine 3'5' monophosphate (cAMP) and protein kinase A (PKA) cooperate with phosphatidylinositol 3' kinase (PI3K) signals in the control of growth and survival. To determine the molecular mechanism(s) involved, we identified and mutagenized a specific serine (residue 83) in p85alpha(PI3K), which is phosphorylated in vivo and in vitro by PKA. Expression of p85alpha(PI3K) mutants (alanine or aspartic...
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