Rabbit anti-Human PTPRJ Polyclonal Antibody

Uniprot Id

Q12913

Target Species

Human

Target Name

PTPRJ

Target Full Name

Receptor-type tyrosine-protein phosphatase eta

Target Function

Tyrosine phosphatase which dephosphorylates or contributes to the dephosphorylation of CTNND1, FLT3, PDGFRB, MET, RET (variant MEN2A), KDR, LYN, SRC, MAPK1, MAPK3, EGFR, TJP1, OCLN, PIK3R1 and PIK3R2. Plays a role in cell adhesion, migration, proliferation and differentiation. Involved in vascular development. Regulator of macrophage adhesion and spreading. Positively affects cell-matrix adhesion. Positive regulator of platelet activation and thrombosis. Negative regulator of cell proliferation. Negative regulator of PDGF-stimulated cell migration; through dephosphorylation of PDGFR. Positive regulator of endothelial cell survival, as well as of VEGF-induced SRC and AKT activation; through KDR dephosphorylation. Negative regulator of EGFR signaling pathway; through EGFR dephosphorylation. Enhances the barrier function of epithelial junctions during reassembly. Negatively regulates T-cell receptor (TCR) signaling. Upon T-cell TCR activation, it is up-regulated and excluded from the immunological synapses, while upon T-cell-antigen presenting cells (APC) disengagement, it is no longer excluded and can dephosphorylate PLCG1 and LAT to down-regulate prolongation of signaling.

Target Subcellular Location

Cell membrane; Single-pass type I membrane protein. Cell projection, ruffle membrane. Cell junction. Note=After T-cell stimulation, it is temporarily excluded from immunological synapses.

Target Protein Families

Protein-tyrosine phosphatase family, Receptor class 3 subfamily

Target Tissue Specificity

Expressed in the promyelocytic cell line HL-60, the granulocyte-macrophage colony-stimulating factor-dependent leukemic cell line F-36P, and the IL3 and erythropoietin-dependent leukemic cell line F-36E. Expressed predominantly in epithelial cells and lym

Target Synonyms

CD 148; CD148; CD148 antigen; Density enhanced phosphatase 1; Density-enhanced phosphatase 1; DEP 1; DEP-1; HPTP eta; HPTPeta; Human density enhanced phosphatase 1; Protein tyrosine phosphatase eta; Protein tyrosine phosphatase receptor type J; Protein tyrosine phosphatase receptor type J polypeptide; Protein-tyrosine phosphatase eta; Protein-tyrosine phosphatase receptor type J; PTPJ; Ptprj; PTPRJ_HUMAN; R PTP Eta; R-PTP-eta; R-PTP-J; Receptor type tyrosine protein phosphatase eta; Receptor-type tyrosine-protein phosphatase eta; SCC 1; SCC1; susceptibility to colon cancer 1; mouse; homolog of

Target Background

The protein encoded by this gene is a member of the protein tyrosine phosphatase (PTP) family. PTPs are known to be signaling molecules that regulate a variety of cellular processes, including cell growth, differentiation, mitotic cycle, and oncogenic transformation. This PTP possesses an extracellular region containing five fibronectin type III repeats, a single transmembrane region, and a single intracytoplasmic catalytic domain, and thus represents a receptor-type PTP. This protein is present in all hematopoietic lineages, and was shown to negatively regulate T cell receptor signaling possibly through interfering with the phosphorylation of Phospholipase C Gamma 1 and Linker for Activation of T Cells. This protein can also dephosphorylate the PDGF beta receptor, and may be involved in UV-induced signal transduction. Multiple transcript variants encoding different isoforms have been found for this gene.