Akt plays a central role in mediating critical cellular responses, including cell growth and survival, angiogenesis, and transcriptional regulation (1-3). It is a member of an important class of kinases, referred to as Arg-directed kinases or AGC-family kinases, which includes cAMP-dependent protein kinase (PKA), cGMP-dependent protein kinase (PKG), protein kinase C, Akt, p70 S6 kinase, and RSK. These kinases share a substrate specificity characterized by Arg at position -3 relative to the phosphorylated Ser or Thr (4,5). Akt, p70 S6 kinase, and RSK additionally share specificity for Arg at position -5 (recognition sequence RXRXXS/T) (6). In a recent phosphoproteomic study (7) co-authored by scientists in the Cell Signaling Technology Site Discovery Group, over 300 downstream substrates for AGC-family kinases recognizing the RXRXXS/T motif were identified with PTMScan® Technology using Phospho-Akt substrate antibodies. These Cell Signaling Technology antibodies are powerful tools for investigating the regulation of phosphorylation by Akt and other Arg-directed kinases, as well as for high throughput kinase drug discovery.
In this assay, PTMScan® (RXXS*/T*) Motif Antibody bead conjugates are used to specifically enrich phosphopeptides containing the RXXS*/T* motif (S* = phospho-serine, T* = phospho-threonine).
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|62248S||100 µl (10 assays)||