PDGFRA Protein, Rat (HEK293, His)

PDGFRA Protein, a tyrosine-protein kinase acting as a cell-surface receptor for PDGFA, PDGFB, and PDGFC, plays a pivotal role in the orchestration of embryonic development, cell proliferation, survival, and chemotaxis. Its multifaceted functions include both promotion and inhibition of cell proliferation and migration depending on the cellular context. PDGF R alpha is integral to the differentiation of bone marrow-derived mesenchymal stem cells, essential for normal skeletal development, and crucial for cephalic closure during embryonic development. Furthermore, it is indispensable for the development of the gastrointestinal tract mucosa, playing a role in recruiting mesenchymal cells and facilitating the normal development of intestinal villi. In the context of wound healing, PDGF R alpha contributes to cell migration and chemotaxis. Its involvement in platelet activation, secretion of agonists from platelet granules, and thrombin-induced platelet aggregation highlights its significance in hemostasis. Binding to its cognate ligands activates several signaling cascades, with the response modulated by ligand nature and heterodimer formation between PDGFRA and PDGFRB. PDGF R alpha phosphorylates PIK3R1, PLCG1, and PTPN11, leading to the activation of diverse signaling pathways, including AKT1, HRAS, and MAP kinases. Additionally, it promotes the activation of STAT family members, such as STAT1, STAT3, STAT5A, and/or STAT5B. Receptor signaling is tightly regulated by protein phosphatases and rapid internalization of the activated receptor. The intricate functions of PDGF R alpha underscore its crucial role in diverse physiological processes.