MAPK8 Blocking Peptide for STJ501715 peptide (STJ505423)

SKU:
STJ505423-250

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Applications: Immunodepletion/Immunocompetition
Note: STRICTLY FOR FURTHER SCIENTIFIC RESEARCH USE ONLY (RUO). MUST NOT TO BE USED IN DIAGNOSTIC OR THERAPEUTIC APPLICATIONS.
Short Description: MAPK8 Blocking Peptide for STJ501715 is synthetically produced from the 370-420 sequence and is suitable for use in western blot applications.
Formulation: Liquid form at 2.5mg/ml concentration in PBS. Up to 5% DMSO can be added. Orders with >1mg can be supplied in lyophilized powder form, or in buffer of choice.
Dilution Range: WB:
IHC: 1:50-1:100
Storage Instruction: Store at-20°C for long term storage. Avoid freeze-thaw cycles.
Gene Symbol: MAPK8
Gene ID: 5599
Uniprot ID: MK08_HUMAN
Immunogen Region: 370-420
Specificity: This blocking peptide is recommended for use in combination with MAPK8 antibody, STJ501715
Immunogen: Synthetic peptide taken within amino acid region 370-420 on human Mitogen-activated protein kinase 8.
Post Translational Modifications Dually phosphorylated on Thr-183 and Tyr-185 by MAP2K7 and MAP2K4, which activates the enzyme. Phosphorylated by TAOK2. May be phosphorylated at Thr-183 and Tyr-185 by MAP3K1/MEKK1. Phosphorylated form is more concentrated at synapses than none-phosphorylated.
Function Serine/threonine-protein kinase involved in various processes such as cell proliferation, differentiation, migration, transformation and programmed cell death. Extracellular stimuli such as pro-inflammatory 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 MAPK8/JNK1. In turn, MAPK8/JNK1 phosphorylates a number of transcription factors, primarily components of AP-1 such as JUN, JDP2 and ATF2 and thus regulates AP-1 transcriptional activity. Phosphorylates the replication licensing factor CDT1, inhibiting the interaction between CDT1 and the histone H4 acetylase HBO1 to replication origins. Loss of this interaction abrogates the acetylation required for replication initiation. Promotes stressed cell apoptosis by phosphorylating key regulatory factors including p53/TP53 and Yes-associates protein YAP1. In T-cells, MAPK8 and MAPK9 are required for polarized differentiation of T-helper cells into Th1 cells. Contributes to the survival of erythroid cells by phosphorylating the antagonist of cell death BAD upon EPO stimulation. Mediates starvation-induced BCL2 phosphorylation, BCL2 dissociation from BECN1, and thus activation of autophagy. Phosphorylates STMN2 and hence regulates microtubule dynamics, controlling neurite elongation in cortical neurons. In the developing brain, through its cytoplasmic activity on STMN2, negatively regulates the rate of exit from multipolar stage and of radial migration from the ventricular zone. Phosphorylates several other substrates including heat shock factor protein 4 (HSF4), the deacetylase SIRT1, ELK1, or the E3 ligase ITCH. Phosphorylates the CLOCK-BMAL1 heterodimer and plays a role in the regulation of the circadian clock. Phosphorylates the heat shock transcription factor HSF1, suppressing HSF1-induced transcriptional activity. Phosphorylates POU5F1, which results in the inhibition of POU5F1's transcriptional activity and enhances its proteasomal degradation. Phosphorylates JUND and this phosphorylation is inhibited in the presence of MEN1. In neurons, phosphorylates SYT4 which captures neuronal dense core vesicles at synapses. Phosphorylates EIF4ENIF1/4-ET in response to oxidative stress, promoting P-body assembly. Phosphorylates SIRT6 in response to oxidative stress, stimulating its mono-ADP-ribosyltransferase activity. Phosphorylates NLRP3, promoting assembly of the NLRP3 inflammasome. JNK1 isoforms display different binding patterns: beta-1 preferentially binds to c-Jun, whereas alpha-1, alpha-2, and beta-2 have a similar low level of binding to both c-Jun or ATF2. However, there is no correlation between binding and phosphorylation, which is achieved at about the same efficiency by all isoforms.
Peptide Name Mitogen-Activated Protein Kinase 8
Map Kinase 8
Mapk 8
Jnk-46
Stress-Activated Protein Kinase 1c
Sapk1c
Stress-Activated Protein Kinase Jnk1
C-Jun N-Terminal Kinase 1
Database Links Reactome: R-HSA-111446
Reactome: R-HSA-139910
Reactome: R-HSA-193648
Reactome: R-HSA-205043
Reactome: R-HSA-2559580
Reactome: R-HSA-2871796
Reactome: R-HSA-376172
Reactome: R-HSA-450321
Reactome: R-HSA-450341
Reactome: R-HSA-5693565
Reactome: R-HSA-9007892
Reactome: R-HSA-9673324
Cellular Localisation Cytoplasm
Nucleus
Synapse
In The Cortical Neurons
Predominantly Cytoplasmic And Associated With The Golgi Apparatus And Endosomal Fraction
Increased Neuronal Activity Increases Phosphorylated Form At Synapses
Colocalizes With Pou5f1 In The Nucleus
Alternative Peptide Names Mitogen-Activated Protein Kinase 8 protein
Map Kinase 8 protein
Mapk 8 protein
Jnk-46 protein
Stress-Activated Protein Kinase 1c protein
Sapk1c protein
Stress-Activated Protein Kinase Jnk1 protein
C-Jun N-Terminal Kinase 1 protein
MAPK8 protein
JNK1 protein
PRKM8 protein
SAPK1 protein
SAPK1C protein

Information sourced from Uniprot.org

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