Recombinant Rat Mitogen-activated protein kinase 9 (Mapk9)

Code CSB-YP013471RA
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Source Yeast
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Code CSB-EP013471RA
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Source E.coli
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Code CSB-EP013471RA-B
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Source E.coli
Conjugate Avi-tag Biotinylated
E. coli biotin ligase (BirA) is highly specific in covalently attaching biotin to the 15 amino acid AviTag peptide. This recombinant protein was biotinylated in vivo by AviTag-BirA technology, which method is BriA catalyzes amide linkage between the biotin and the specific lysine of the AviTag.
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Code CSB-BP013471RA
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Source Baculovirus
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Code CSB-MP013471RA
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Source Mammalian cell
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Product Details

>85% (SDS-PAGE)
Target Names
Uniprot No.
Alternative Names
Mapk9; Jnk2; Prkm9Mitogen-activated protein kinase 9; MAP kinase 9; MAPK 9; EC; SAPK-alpha; Stress-activated protein kinase JNK2; c-Jun N-terminal kinase 2; p54-alpha
Rattus norvegicus (Rat)
Expression Region
Target Protein Sequence
Protein Length
Full length protein
Tag Info
Tag type will be determined during the manufacturing process.
The tag type will be determined during production process. If you have specified tag type, please tell us and we will develop the specified tag preferentially.
Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
Buffer before Lyophilization
Tris/PBS-based buffer, 6% Trehalose, pH 8.0
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.
Troubleshooting and FAQs
Storage Condition
Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life
The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Lead Time
Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Please contact us to get it.

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Target Background

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. Phosphorylates POU5F1, which results in the inhibition of POU5F1's transcriptional activity and enhances its proteosomal degradation.
Gene References into Functions
  1. Data indicate that aluminum (Al) enhances heme oxygenase-1 (HO-1) expression through the reactive oxygen species (ROS)-JNK1/2 pathway. PMID: 23969109
  2. The expression of alpha-SMA was up-regulated by JNK1 and JNK2 in non-stress condition during liver fibrosis PMID: 24134609
  3. JNK2 mediates survival of hepatocytes from menadione-induced cell death whereas JNK1 promotes cell death. PMID: 22644775
  4. E(2), BSA-E(2) and ERalpha expression exert their cardioprotective effects by inhibiting JNK1/2-mediated LPS-induced TNF-alpha expression and cardiomyocyte apoptosis through activation of Akt PMID: 20196785
  5. The role of JNK2 in the mechanism of osmotic stress-induced tight junction disruption in the intestinal epithelium in 3 species is described. PMID: 20595622
  6. activation, subcellular distribution, involvement and upstream regulation of were investigated in glutamate-induced excitotoxicity in cultured rat cortical neurons PMID: 12445686
  7. 6-hydroxydopamine causes JNK2 to translocate to the mitochondria, which mediates cytochrome c release PMID: 15504737
  8. Activation of JNK2 by lead acetate paralled impairment of glioma cell viability. PMID: 17333127
  9. These studies reveal that Bad phosphorylation at two distinct sites induced by Akt1 and JNK1/2 have opposing effects on ischemic brain injury, and present the possibility of Bad as a potential therapeutic target for stroke treatment. PMID: 17555943
  10. Examine role of myocardial and intestinal JNK2/MAPK9 in remote vs. ischemic preconditioning. PMID: 18096574
  11. An abrupt rise in oxidative stress activates p38 MAPK to tilt the balance in a competitive AKT/JNK2 regulation of FOXO3 toward its activation, eventually leading to neuronal death. PMID: 18287535
  12. These results show that P2Y(2) receptor stimulation by ATP induces JNK1 phosphorylation in ROS-A 17/2.8 cells in a way dependent on PI-PLC/IP(3)/intracellular Ca(2+) release. PMID: 18625195
  13. ethanol-induced p-JNK1/2 activation is associated with the IGF-I system and cell viability in hepatocytes PMID: 18666320
  14. a balance in JNK1/2 and p38alpha activation determines the level of Ao gene expression in myocardial cells. PMID: 18926830
  15. IL-1beta stimulates GDNF release through the pathways of IkappaB-nuclear factor kappa B, p38 MAP kinase, p44/p42 MAP kinase and JAK-STAT3, but not through the SAPK/JNK pathway in glioma cells. PMID: 19362079

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Subcellular Location
Cytoplasm. Nucleus.
Protein Families
Protein kinase superfamily, CMGC Ser/Thr protein kinase family, MAP kinase subfamily
Database Links
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