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JNK Blocking Peptide

Product Information
Primary Accession P45983
Gene ID 5599
Calculated MW 48296 Da
Additional Information
Gene ID 5599
Application & Usage The peptide is used for blocking the antibody activity of JNK. It usually blocks the antibody activity completely in Western blot analysis by incubating the peptide with equal volume of antibody for 30-60 minutes at 37°C.
Other Names 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, MAPK8, JNK1, PRKM8, SAPK1, SAPK1C
Target/Specificity JNK
Formulation 50 µg (0.5 mg/ml) in phosphate buffered saline (PBS), pH 7.2, containing 50 glycerol, 1% BSA and 0.02% thimerosal.
Reconstitution & Storage -20 °C
Background Descriptions
PrecautionsJNK Blocking Peptide is for research use only and not for use in diagnostic or therapeutic procedures.
Protein Information
Name MAPK8
Synonyms JNK1, PRKM8, SAPK1, SAPK1C
Function 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 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-ARNTL/BMAL1 heterodimer and plays a role in the regulation of the circadian clock (PubMed:22441692).
Cellular Location Cytoplasm. Nucleus
Research Areas
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$ 95.00
Cat# PBV10326b
(40 western blots)
Availability: 5-7days
Bulk Size
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