Dual specificity phosphatase 6 (DUSP6) is an enzyme that in humans is encoded by the DUSP6 gene. 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 ERK2, is expressed in a variety of tissues with the highest levels in heart and pancreas and, unlike most other members of this family, is localized in the cytoplasm. Two transcript variants encoding different isoforms have been found for this gene. Upregulation of MKP-3 has been shown to alleviate chronic postoperative pain.
Background References
1. Bertin S et al. Dual-specificity phosphatase 6 regulates CD4(+) T-cell functions and restrains spontaneous colitis in IL-10-deficient mice. Mucosal Immunol N/A:N/A (2014).
2. Wales S et al. Global MEF2 target gene analysis in cardiac and skeletal muscle reveals novel regulation of DUSP6 by p38MAPK-MEF2 signaling. Nucleic Acids Res 42:11349-62 (2014).
Western blot analysis of DUSP6 on different lysates with Mouse anti-DUSP6 antibody (HA601675) at 1/5,000 dilution.
Lane 1: Hep G2 (Human hepatocellular carcinoma cell) cell lysate
Lane 2: RAW264.7 (Mouse monocytic macrophage leukemia cell) cell lysate
Lane 3: C6 (Rat glioma cell) cell lysate
Lane 4: Mouse brain tissue lysate
Lane 5: Rat brain tissue lysate
Lysates/proteins at 15 µg/Lane.
Exposure time: 1 minute; ECL: K1801
Blocking: 5% NFDM/TBST, 1 hour at room temperature
Primary antibody: HA601675, 1/5,000 in primary antibody dilution buffer (K1803), overnight at 4 °C
Secondary antibody: Goat anti-Mouse IgG-HRP (HA1006), 1/50,000 in 5% NFDM/TBST, 1 hour at room temperature
Predicted band size: 42 kDa
Observed band size: 42 kDa
Application: Immunohistochemistry (IHC-P)
Species: Human
Tissue: Pancreas
Sample: Paraffin-embedded section