EC 3.1.3.48; R-PTP-N2; Islet cell autoantigen-related protein; ICAAR; IAR
Categories
Primary Antibodies
Clonality
polyclonal
Description
Implicated in development of nervous system and pancreatic endocrine cells.Kawasaki E., Biochem. Biophys. Res. Commun. 227:440-447(1996).Smith P.D., Biochem. Biophys. Res. Commun. 229:402-411(1996).Cui L., J. Biol. Chem. 271:24817-24823(1996).
Host
Rabbit
Immunogen
Synthesized peptide derived from internal of Human PTPRN2.
Involvement In Disease
Autoantigen in insulin-dependent diabetes mellitus (IDDM).
Raised In
Rabbit
Reactivity
Human
Regulatory
RUO
Relevance
Implicated in development of nervous system and pancreatic endocrine cells.
Kawasaki E., Biochem. Biophys. Res. Commun. 227:440-447(1996). Smith P.D., Biochem. Biophys. Res. Commun. 229:402-411(1996). Cui L., J. Biol. Chem. 271:24817-24823(1996).
Species
Homo Sapiens (Human)
Specificity
The antibody detects endogenous levels of total PTPRN2 protein.
Subcellular Location
Cytoplasmic vesicle, secretory vesicle membrane, Single-pass type I membrane protein, Cytoplasmic vesicle, secretory vesicle, synaptic vesicle membrane, Single-pass type I membrane protein
Plays a role in vesicle-mediated secretory processes. Required for normal accumulation of secretory vesicles in hippocampus, pituitary and pancreatic islets. Required for the accumulation of normal levels of insulin-containing vesicles and preventing their degradation. Plays a role in insulin secretion in response to glucose stimuli. Required for normal accumulation of the neurotransmitters norepinephrine, dopamine and serotonin in the brain. In females, but not in males, required for normal accumulation and secretion of pituitary hormones, such as luteinizing hormone (LH) and follicle-stimulating hormone (FSH) (By similarity). Required to maintain normal levels of renin expression and renin release (By similarity). May regulate catalytic active protein-tyrosine phosphatases such as PTPRA through dimerization (By similarity). Has phosphatidylinositol phosphatase activity; the PIPase activity is involved in its ability to regulate insulin secretion. Can dephosphorylate phosphatidylinositol 4,5-biphosphate (PI(4,5)P2), phosphatidylinositol 5-phosphate and phosphatidylinositol 3-phosphate (By similarity). Regulates PI(4,5)P2 level in the plasma membrane and localization of cofilin at the plasma membrane and thus is indirectly involved in regulation of actin dynamics related to cell migration and metastasis; upon hydrolyzation of PI(4,5)P2 cofilin is released from the plasma membrane and acts in the cytoplasm in severing F-actin filaments
Protein Families
Protein-tyrosine phosphatase family, Receptor class 8 subfamily
Tissue Specificity
Highest levels in brain and pancreas (PubMed:8954911, PubMed:8798755). Lower levels in trachea, prostate, stomach and spinal chord (PubMed:8798755).
Buffer
Rabbit IgG in phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.
Form
Rabbit IgG in phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.
Format
liquid
Purification
The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen.
Purity
The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen.
Storage
Upon receipt, store at -20°C or -80°C. Avoid repeated freeze.