Aliases for PDGFRA Gene
- Platelet Derived Growth Factor Receptor Alpha 2 3 5
- Platelet-Derived Growth Factor Receptor, Alpha Polypeptide 2 3
- Alpha-Type Platelet-Derived Growth Factor Receptor 3 4
- Platelet-Derived Growth Factor Receptor 2 3 4
- CD140 Antigen-Like Family Member A 3 4
- CD140a Antigen 3 4
- PDGF-R-Alpha 3 4
- PDGFR-2 3 4
- PDGFR2 3 4
External Ids for PDGFRA Gene
Previous GeneCards Identifiers for PDGFRA Gene
This gene encodes a cell surface tyrosine kinase receptor for members of the platelet-derived growth factor family. These growth factors are mitogens for cells of mesenchymal origin. The identity of the growth factor bound to a receptor monomer determines whether the functional receptor is a homodimer or a heterodimer, composed of both platelet-derived growth factor receptor alpha and beta polypeptides. Studies suggest that this gene plays a role in organ development, wound healing, and tumor progression. Mutations in this gene have been associated with idiopathic hypereosinophilic syndrome, somatic and familial gastrointestinal stromal tumors, and a variety of other cancers. [provided by RefSeq, Mar 2012]
Commonly mutated in GI tract tumors, PDGFR family genes (mutually exclusive to KIT mutations) are a hallmark of gastrointestinal stromal tumors. Gene fusions involving the PDGFRA kinase domain are highly correlated with eosinophilia, and the WHO classifies myeloid and lymphoid neoplasms with these characteristics as a distinct disorder. Mutations in the 842 region of PDGFRA have been often found to confer resistance to the tyrosine kinase inhibitor, imatinib.
GeneCards Summary for PDGFRA Gene
PDGFRA (Platelet Derived Growth Factor Receptor Alpha) is a Protein Coding gene. Diseases associated with PDGFRA include Gastrointestinal Stromal Tumor and Hypereosinophilic Syndrome, Idiopathic. Among its related pathways are ERK Signaling and Focal Adhesion. Gene Ontology (GO) annotations related to this gene include protein homodimerization activity and protein kinase activity. An important paralog of this gene is PDGFRB.
UniProtKB/Swiss-Prot for PDGFRA Gene
Tyrosine-protein kinase that acts as a cell-surface receptor for PDGFA, PDGFB and PDGFC and plays an essential role in the regulation of embryonic development, cell proliferation, survival and chemotaxis. Depending on the context, promotes or inhibits cell proliferation and cell migration. Plays an important role in the differentiation of bone marrow-derived mesenchymal stem cells. Required for normal skeleton development and cephalic closure during embryonic development. Required for normal development of the mucosa lining the gastrointestinal tract, and for recruitment of mesenchymal cells and normal development of intestinal villi. Plays a role in cell migration and chemotaxis in wound healing. Plays a role in platelet activation, secretion of agonists from platelet granules, and in thrombin-induced platelet aggregation. Binding of its cognate ligands - homodimeric PDGFA, homodimeric PDGFB, heterodimers formed by PDGFA and PDGFB or homodimeric PDGFC -leads to the activation of several signaling cascades; the response depends on the nature of the bound ligand and is modulated by the formation of heterodimers between PDGFRA and PDGFRB. Phosphorylates PIK3R1, PLCG1, and PTPN11. Activation of PLCG1 leads to the production of the cellular signaling molecules diacylglycerol and inositol 1,4,5-trisphosphate, mobilization of cytosolic Ca(2+) and the activation of protein kinase C. Phosphorylates PIK3R1, the regulatory subunit of phosphatidylinositol 3-kinase, and thereby mediates activation of the AKT1 signaling pathway. Mediates activation of HRAS and of the MAP kinases MAPK1/ERK2 and/or MAPK3/ERK1. Promotes activation of STAT family members STAT1, STAT3 and STAT5A and/or STAT5B. Receptor signaling is down-regulated by protein phosphatases that dephosphorylate the receptor and its down-stream effectors, and by rapid internalization of the activated receptor.
Platelet-derived growth factor receptors (PDGFRs) are catalytic receptors that have intracellular tyrosine kinase activity. They have roles in the regulation of many biological processes including embryonic development, angiogenesis, cell proliferation and differentiation.