Home MAPK JNK inhibitor JNK-IN-8 For research use only.

JNK-IN-8

Synonyms: JNK Inhibitor XVI

JNK-IN-8 (JNK Inhibitor XVI) is the first irreversible JNK inhibitor for JNK1, JNK2 and JNK3 with IC50 of 4.7 nM, 18.7 nM and 1 nM, >10-fold selectivity against MNK2, Fms and no inhibition to c-Kit, Met, PDGFRβin A375 cell line.

JNK-IN-8 Chemical Structure

JNK-IN-8 Chemical Structure

CAS No. 1410880-22-6

Purity & Quality Control

JNK-IN-8 Related Products

Signaling Pathway

JNK Signaling Pathways

JNK Signaling Pathway

Cell Data

Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID
human HeLa cells Function assay 1 h Inhibition of JNK3-mediated c-jun phosphorylation in human HeLa cells after 1 hr incubation, IC50=0.486 μM 25415535
human A375 cells Function assay 1 h Inhibition of JNK3-mediated c-jun phosphorylation in human A375 cells after 1 hr incubation, IC50=0.338 μM 25415535
Click to View More Cell Line Experimental Data

Biological Activity

Description JNK-IN-8 (JNK Inhibitor XVI) is the first irreversible JNK inhibitor for JNK1, JNK2 and JNK3 with IC50 of 4.7 nM, 18.7 nM and 1 nM, >10-fold selectivity against MNK2, Fms and no inhibition to c-Kit, Met, PDGFRβin A375 cell line.
Features JNK-IN-8 and JNK-IN-7 are structurally very similar, but whereas the former is a specific covalent inhibitor of JNKs.
Targets
JNK3 [1]
(A375 cells)		 JNK1 [1]
(A375 cells)		 JNK2 [1]
(A375 cells)		 Kit (V559D,T670I) [1]
(A375 cells)		 Kit (V559D) [1]
(A375 cells)
1 nM 4.7 nM 18.7 nM 56 nM 92 nM
In vitro
In vitro

JNK-IN-8 inhibits c-Jun phosphorylation in HeLa and A375 cells with EC50 of 486 nM and 338 nM, respectively. JNK-IN-8 shows a dramatic improvement in selectivity and eliminated binding to IRAK1, PIK3C3, PIP4K2C, and PIP5K3. JNK-IN-8 requires Cys116 for JNK2 inhibition. [1]

JNK-IN-8 (10 mM) suppresses the IL-1β-stimulated phosphorylation of c-Jun in IL-1R cells, an established substrate of the JNKs. JNK-IN-8 covalently attaches to the JNK isoforms caused a small retardation in the electrophoretic mobility of the JNK isoforms. [2]

JNK-IN-8 is discovered to inhibit JNK kinase by broad-based kinase selectivity profiling of a library of acrylamide kinase inhibitors based on the structure of using the KinomeScan approach. JNK-IN-8 possesses distinct regiochemistry of the 1,4-dianiline and 1,3-aminobenzoic acid substructures. JNK-IN-8 adopts an L-shaped type I binding conformation to access Cys 154 located toward the lip of the ATP-binding site. [3]
Kinase Assay Binding Kinetics Assay
Binding kinetics assay A375 cells are pretreated with 1 μM JNK-IN-8 for the indicated amounts of time. Remove the medium and wash three times with PBS. Resuspend the cell pellet with 1 mL Lysis Buffer (1% NP-40, 1% CHAPS, 25 mM Tris, 150 mM NaCl, Phosphatase Inhibitor Cocktail, and Protease Inhibitor Cocktail). Rotate end to end for 30 min at 4℃. Lysates are cleared by centrifugation at 1.4×104 rpm for 15 min in the Eppendorf. The cleared lysates are gel filtered into Kinase Buffer (0.1% NP-40, 20 mM HEPES, 150 mM NaCl, Phosphatase Inhibitor Cocktail, Protease Inhibitor Cocktail) using 10DG columns. The total protein concentration of the gel-filtered lysate should be around 5–15 mg/ml. Cell lysate is labeled with the probe from ActivX at 5 μM for 1 hour. Samples are reduced with DTT, and cysteines are blocked with iodoacetamide and gel filtered to remove excess reagents and exchange the buffer. Add 1 vol of 2× Binding Buffer (2% Triton-100, 1% NP-40, 2 mM EDTA, 2× PBS) and 50 μL streptavidin bead slurry, and rotate end to end for 2 hours, centrifuge at 7,000 rpm for 2 min. Wash three times with 1× Binding Buffer and three times with PBS. Add 30 μL 1× sample buffer to beads; heat samples at 95℃ for 10 min. Run samples on an SDS-PAGE gel at 110V. After transferred, the membrane is immunoblotted with JNK antibody.
Experimental Result Images Methods Biomarkers Images PMID
Western blot Notch1 / c-Myc / Cyclin D1 / p21 c-Jun / p-c-Jun / ATF2 / p-ATF2 / Elk-1 / pElk-1 27941886
Growth inhibition assay Cell viability 25847947
In Vivo
In vivo

JNK-IN-8 is a potent JNK inhibitor that specially targets JNK activation. It has anti-fungal activity.
Animal Research Animal Models C57BL/6 mice
Dosages 10 mg/kg
Administration i.p.

Chemical Information & Solubility

Molecular Weight 507.59 Formula

C29H29N7O2
CAS No. 1410880-22-6 SDF Download JNK-IN-8 SDF
Smiles CC1=C(C=CC(=C1)NC(=O)C2=CC(=CC=C2)NC(=O)C=CCN(C)C)NC3=NC=CC(=N3)C4=CN=CC=C4
Storage (From the date of receipt)

In vitro
Batch:

DMSO : 100 mg/mL ( (197.0 mM) Moisture-absorbing DMSO reduces solubility. Please use fresh DMSO.)

Water : Insoluble

Ethanol : Insoluble


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Tech Support

Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.

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