Molecular and genetic studies imply Akt-mediated signaling promotes protein kinase CbetaII alternative splicing via phosphorylation of serine/arginine-rich splicing factor SRp40.

Abstract excerpt

Insulin regulates alternative splicing of PKCbetaII mRNA by phosphorylation of SRp40 via a phosphatidylinositol 3-kinase pathway (Patel, N. A., Chalfant, C. E., Watson, J. E., Wyatt, J. R., Dean, N. M., Eichler, D. C., and Cooper, D. C. (2001) J. Biol. Chem. 276, 22648-22654). Transient transfection of constitutively active Akt2 kinase promotes PKCbetaII exon inclusion. Serine/arginine-rich (SR) RNA-binding...

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