Serine/threonine-protein kinase involved in various processes such as cell proliferation, differentiation, migration, transformation and programmed cell death.
Extracellular stimuli such as proinflammatory cytokines or physical stress stimulate the stress-activated protein kinase/c-Jun N-terminal kinase (SAP/JNK) signaling pathway.
In this cascade, two dual specificity kinases MAP2K4/MKK4 and MAP2K7/MKK7 phosphorylate and activate MAPK9/JNK2.
In turn, MAPK9/JNK2 phosphorylates a number of transcription factors, primarily components of AP-1 such as JUN and ATF2 and thus regulates AP-1 transcriptional activity.
In response to oxidative or ribotoxic stresses, inhibits rRNA synthesis by phosphorylating and inactivating the RNA polymerase 1-specific transcription initiation factor RRN3.
Promotes stressed cell apoptosis by phosphorylating key regulatory factors including TP53 and YAP1.
In T-cells, MAPK8 and MAPK9 are required for polarized differentiation of T-helper cells into Th1 cells.
Upon T-cell receptor (TCR) stimulation, is activated by CARMA1, BCL10, MAP2K7 and MAP3K7/TAK1 to regulate JUN protein levels.
Plays an important role in the osmotic stress-induced epithelial tight-junctions disruption.
When activated, promotes beta-catenin/CTNNB1 degradation and inhibits the canonical Wnt signaling pathway.
Participates also in neurite growth in spiral ganglion neurons.
Phosphorylates the CLOCK-ARNTL/BMAL1 heterodimer and plays a role in the regulation of the circadian clock.
MAPK9 isoforms display different binding patterns: alpha-1 and alpha-2 preferentially bind to JUN, whereas beta-1 and beta-2 bind to ATF2.
However, there is no correlation between binding and phosphorylation, which is achieved at about the same efficiency by all isoforms.
JUNB is not a substrate for JNK2 alpha-2, and JUND binds only weakly to it.
Applications:Suitable for use in ELISA and Western Blot.
Other applications not tested.
Recommended Dilution:Optimal dilutions to be determined by the researcher.
Storage and Stability:May be stored at 4°C for short-term only.
Aliquot to avoid repeated freezing and thawing.
Store at -20°C.
Aliquots are stable for 12 months after receipt.
For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
仕様
Size：100ug
Host：rabbit
Source Antibody：human
Grade：Affinity Purified
Purity：Purified by Protein G affinity chromatography.
Form：Supplied as a liquid in 0.01M PBS, pH 7.4, 0.03% Proclin 300, 50% glycerol.
Specificity：Recognizes human MAPK9. Species Crossreactivity: mouse
Isotype：IgG
Calc Applications Abbrev：E WB
Calc Crossreactivity：Hu Mo
Immunogen：Recombinant human Mitogen-activated protein kinase 9 protein (aa1-424).
