The protein encoded by this gene is a member of the dual specificity protein phosphatase subfamily. These phosphatases inactivate their target kinases by dephosphorylating both the phosphoserine/threonine and phosphotyrosine residues. They negatively regulate members of the mitogen-activated protein (MAP) kinase superfamily (MAPK/ERK, SAPK/JNK, p38), which are associated with cellular proliferation and differentiation. Different members of the family of dual specificity phosphatases show distinct substrate specificities for various MAP kinases, different tissue distribution and subcellular localization, and different modes of inducibility of their expression by extracellular stimuli. This gene product inactivates ERK1, ERK2 and JNK, is expressed in a variety of tissues, and is localized in the nucleus. Two alternatively spliced transcript variants, encoding distinct isoforms, have been observed for this gene. In addition, multiple polyadenylation sites have been reported. [provided by RefSeq, Jul 2008]
Alternative Names
TYP HVH2 MKP2 MKP-2
Molecular Weight(MW)
43 kDa
Cellular Localization
Nucleus.
Application
WB
Western blot analysis of extracts from C2C12 cells using DUSP4 Rabbit mAb at 1:1000.
Application Notes
WB:1:1000
Additional Information
Form
Liquid
Storage Instructions
Store at -20°C.Stable for 12 months from date of receipt.
Storage Buffer
Supplied in 50mM Tris-Glycine(pH 7.4), 0.15M NaCl, 40% Glycerol, 0.01% sodium azide and 0.05% BSA