Background: Dual specificity phosphatases (DSPs) are a subclass of the protein tyrosine phosphatase (PTP) gene superfamily, which are selective for dephosphorylating critical phosphothreonine and phosphotyrosine residues within MAP kinases. DSP gene expression is induced by a host of growth factors and/or cellular stresses, thereby negatively regulating MAP kinase superfamily members including MAPK/ERK, SAPK/JNK and p38. DUSP18 (dual specificity protein phosphatase 18), also known as low molecular weight dual specificity phosphatase 20, is a 188 amino acid enzyme that functions optimally at a pH of 6.0 and at a temperature of 55 degrees celsius. With highest expression in testis, brain, ovary and liver, DUSP18 is inhibited by iodoarectic acid and is activated by manganese ions. Along with having preferential enzymatic activity against phosphorylated tyrosine residues over threonine residues, DUSP18 also dephosphorylates p-nitrophenyl phosphate (pNPP) in vitro.
Description: Rabbit polyclonal to DUSP18
Immunogen: KLH conjugated synthetic peptide derived from DUSP18
Specificity: ·Reacts with Human, Mouse and Rat.
·Isotype: IgG
Application: ·Western blotting: 1/100-500. Predicted Mol wt: 21 kDa;
·Immunohistochemistry (Paraffin/frozen tissue section): 1/100-200;
·Immunocytochemistry: 1/100;
·Immunoprecipitation: 1/50;
·ELISA: 1/500;
·Optimal working dilutions must be determined by the end user.
