The Phospho-PDPK1 (Ser241) antibody is designed to detect endogenous levels of 3-phosphoinositide-dependent protein kinase 1 (PDPK1 or PDK1) when phosphorylated at serine 241. PDPK1 is a serine/threonine kinase critical for activating AGC kinase family members, including AKT/PKB, SGK, and PKC, through phosphorylation of their activation loops. Autophosphorylation at Ser241 within the kinase's catalytic domain is essential for PDPK1's full activation and stability, enabling it to regulate downstream signaling pathways involved in cell survival, proliferation, metabolism, and apoptosis.
This phosphorylation event is often associated with growth factor signaling (e.g., insulin/IGF-1) and PI3K pathway activation. Dysregulation of PDPK1 activity, including aberrant phosphorylation at Ser241. has been implicated in cancer, diabetes, and neurodegenerative disorders. The Phospho-PDPK1 (Ser241) antibody is widely used in research to study pathway activation status, kinase activity modulation, and therapeutic targeting in disease models. It is validated for applications such as Western blotting, immunoprecipitation, and immunohistochemistry, with specificity confirmed using knockout controls or phosphatase treatment. Proper handling (e.g., aliquot storage, brief centrifugation before use) ensures optimal performance. This antibody serves as a key tool for exploring PDPK1's role in cellular signaling networks and drug discovery efforts.