Studying the Subcellular Localization and DNA-Binding Activity of FoxO Transcription Factors, Downstream Effectors of PI3K/Akt
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This chapter describes methods for studying downstream events of the PI3 K/Akt signaling cascade, focusing on the FoxO transcription factors. These approaches also represent alternative means for gauging the phosphoinositide-3 kinase/Akt activity. We describe protocols for the fractionation of cytoplasmic and nuclear protein extracts and for studying transcription factor DNA-binding activity in vitro and in vivo.
