Rabbit anti-Human FGR Polyclonal Antibody

Uniprot Id

P09769

Target Species

Human

Target Name

FGR

Target Full Name

Tyrosine-protein kinase Fgr

Target Function

Non-receptor tyrosine-protein kinase that transmits signals from cell surface receptors devoid of kinase activity and contributes to the regulation of immune responses, including neutrophil, monocyte, macrophage and mast cell functions, cytoskeleton remodeling in response to extracellular stimuli, phagocytosis, cell adhesion and migration. Promotes mast cell degranulation, release of inflammatory cytokines and IgE-mediated anaphylaxis. Acts downstream of receptors that bind the Fc region of immunoglobulins, such as MS4A2/FCER1B, FCGR2A and/or FCGR2B. Acts downstream of ITGB1 and ITGB2, and regulates actin cytoskeleton reorganization, cell spreading and adhesion. Depending on the context, activates or inhibits cellular responses. Functions as negative regulator of ITGB2 signaling, phagocytosis and SYK activity in monocytes. Required for normal ITGB1 and ITGB2 signaling, normal cell spreading and adhesion in neutrophils and macrophages. Functions as positive regulator of cell migration and regulates cytoskeleton reorganization via RAC1 activation. Phosphorylates SYK (in vitro) and promotes SYK-dependent activation of AKT1 and MAP kinase signaling. Phosphorylates PLD2 in antigen-stimulated mast cells, leading to PLD2 activation and the production of the signaling molecules lysophosphatidic acid and diacylglycerol. Promotes activation of PIK3R1. Phosphorylates FASLG, and thereby regulates its ubiquitination and subsequent internalization. Phosphorylates ABL1. Promotes phosphorylation of CBL, CTTN, PIK3R1, PTK2/FAK1, PTK2B/PYK2 and VAV2. Phosphorylates HCLS1 that has already been phosphorylated by SYK, but not unphosphorylated HCLS1. Together with CLNK, it acts as a negative regulator of natural killer cell-activating receptors and inhibits interferon-gamma production.

Target Involvement

Mutations that cause aberrant kinase activation can confer oncogene activity and promote aberrant cell proliferation.

Target Subcellular Location

Cell membrane; Lipid-anchor; Cytoplasmic side. Cell membrane; Peripheral membrane protein; Cytoplasmic side. Cell projection, ruffle membrane. Cytoplasm, cytosol. Cytoplasm, cytoskeleton. Mitochondrion inner membrane. Mitochondrion intermembrane space.

Target Protein Families

Protein kinase superfamily, Tyr protein kinase family, SRC subfamily

Target Tissue Specificity

Detected in neutrophils, monocytes and natural killer cells (at protein level). Detected in monocytes and large lymphocytes.

Target Synonyms

c fgr; c fgr protooncogene; c src 2 proto oncogene; c src2; Fgr; FGR_HUMAN; FLJ43153; Gardner Rasheed feline sarcoma viral (v fgr); Gardner Rasheed feline sarcoma viral (v fgr) oncogene homolog; Gardner-Rasheed feline sarcoma viral (v-fgr) oncogene homolog; MGC75096; p55 c fgr protein; P55 FGR; P55-FGR; p55c fgr; p58-Fgr; p58c fgr; p58c-Fgr; Proto oncogene c Fgr; Proto oncogene tyrosine protein kinase FGR; Proto-oncogene c-Fgr; SRC 2; SRC2; Tyrosine protein kinase Fgr; Tyrosine-protein kinase Fgr

Target Background

This gene is a member of the Src family of protein tyrosine kinases (PTKs). The encoded protein contains N-terminal sites for myristylation and palmitylation, a PTK domain, and SH2 and SH3 domains which are involved in mediating protein-protein interactions with phosphotyrosine-containing and proline-rich motifs, respectively. The protein localizes to plasma membrane ruffles, and functions as a negative regulator of cell migration and adhesion triggered by the beta-2 integrin signal transduction pathway. Infection with Epstein-Barr virus results in the overexpression of this gene. Multiple alternatively spliced variants, encoding the same protein, have been identified.