Recombinant Human PDGFR beta protein

Specifications

Form

Liquid

Additional notes

ab185609 was expressed in E.coli as inclusion bodies. The final product was refolded using “temperature shift inclusion body refolding” technology, chromatographically purified and sterile-filtered.

General info

Function

The protein expressed by the PDGFRB gene is a tyrosine-protein kinase that functions as a cell-surface receptor for various PDGF homodimers and heterodimers, playing an essential role in embryonic development, cell proliferation, survival, differentiation, chemotaxis, and migration. It is crucial for blood vessel development by promoting the proliferation and migration of, as well as recruitment of, pericytes and smooth muscle cells to endothelial cells. It has a role in vascular smooth muscle cell migration and neointima formation at injury sites, and is necessary for normal cardiovascular development and pericyte recruitment in kidney glomeruli. The protein facilitates actin cytoskeleton rearrangement and membrane ruffle formation. Ligand binding activates signaling cascades depending on the ligand bound and interactions with PDGFRA, leading to phosphorylation of several substrates, activation of signaling pathways such as AKT1, MAPK, and SRC family kinases, and production of molecules like diacylglycerol and inositol trisphosphate. Receptor signaling is downregulated by protein phosphatases and receptor internalization. This supplementary information is collated from multiple sources and compiled automatically.

Sequence similarities

Belongs to the protein kinase superfamily. Tyr protein kinase family. CSF-1/PDGF receptor subfamily.

Post-translational modifications

Autophosphorylated on tyrosine residues upon ligand binding. Autophosphorylation occurs in trans, i.e. one subunit of the dimeric receptor phosphorylates tyrosine residues on the other subunit. Phosphorylation at Tyr-579, and to a lesser degree, at Tyr-581, is important for interaction with SRC family kinases. Phosphorylation at Tyr-740 and Tyr-751 is important for interaction with PIK3R1. Phosphorylation at Tyr-751 is important for interaction with NCK1. Phosphorylation at Tyr-771 and Tyr-857 is important for interaction with RASA1/GAP. Phosphorylation at Tyr-857 is important for efficient phosphorylation of PLCG1 and PTPN11, resulting in increased phosphorylation of AKT1, MAPK1/ERK2 and/or MAPK3/ERK1, PDCD6IP/ALIX and STAM, and in increased cell proliferation. Phosphorylation at Tyr-1009 is important for interaction with PTPN11. Phosphorylation at Tyr-1009 and Tyr-1021 is important for interaction with PLCG1. Phosphorylation at Tyr-1021 is important for interaction with CBL; PLCG1 and CBL compete for the same binding site. Dephosphorylated by PTPRJ at Tyr-751, Tyr-857, Tyr-1009 and Tyr-1021. Dephosphorylated by PTPN2 at Tyr-579 and Tyr-1021.. N-glycosylated.. Ubiquitinated. After autophosphorylation, the receptor is polyubiquitinated, leading to its degradation.

Subcellular localisation

Lysosome lumen