General description
A cell-permeable, biologically active peptide consisting of a carboxyl terminal sequence derived from the JNK-binding domain (JBD) and an amino terminal peptide containing the HIV-TAT48-57 sequence. Blocks c-Jun NH2-terminal kinase (JNK) signaling by preventing the activation of the transcription factor c-jun (IC50 ~ 1 µM). This effect appears to be due to inhibition of phosphorylation of the activation domains of JNK. Contains the minimal 20-amino acid inhibitory domain of islet-brain (IB) that is shown to be critical for interaction with JNK linked to the 10-amino acid HIV-TAT48-57 sequence as a carrier peptide and two proline residues as spacer. Inhibits IL-1β-induced c-jun and c-fos expression in insulin secreting βTC-3 cells and offers protection against apoptosis. Does not affect insulin secretion and has no effect on either ERK 1/2 or p38 activities.
A cell-permeable, biologically active peptide consisting of a carboxyl- terminal sequence derived from the JNK-binding domain (JBD) and an amino-terminal peptide containing the HIV-TAT48-57 sequence that imparts cell-permeability. Blocks the activation domain of c-Jun NH2-terminal kinase (JNK) and prevents the activation of the transcription factor c-Jun (IC50 ~1 µM). Contains the minimal 20-amino acid inhibitory domain of islet-brain (IB), which is critical for interaction with JNK.The peptide is covalently linked to the 10-amino acid HIV-TAT48-57 sequence that acts as a carrier peptide and to two proline residue spacers. Inhibits IL-1β-induced c-Jun and c-fos expression in insulin secreting βTC-3 cells and offers protection against apoptosis. Does not affect insulin secretion and has no significant effect on the activities of ERK1, ERK2, or p38.
Biochem/physiol Actions
Cell permeable: yes
Primary Target
JNK
Product does not compete with ATP.
Reversible: no
Packaging
Packaged under inert gas
Warning
Toxicity: Standard Handling (A)
Sequence
H-Gly-Arg-Lys-Lys-Arg-Agr-Gln-Arg-Arg-Arg-Pro-Pro-Arg-Pro-Lys-Arg-Pro-Thr-Thr-Leu-Asn-Leu-Phe-Pro-Gln-Val-Pro-Arg-Ser-Gln-Asp-Thr-NH₂
Physical form
Supplied as a trifluoroacetate salt.
Reconstitution
Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 6 months at -20°C.
Other Notes
Barr, R.K., et al. 2002. J. Biol. Chem.277, 10987.
Bonny, C., et al. 2001. Diabetes50, 77.
Legal Information
Sold under license of U.S. Patents 6,043,083 and 6,410,693.
CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
Molecular Weight: 3923.55. Empirical Formula: C168H293N67O42. Quality Level: 100. Assay: ≥. 97% (HPLC). form: lyophilized solid. potency: 1 . μ. M IC50. manufacturer/tradename: Calbiochem®. . storage condition: OK to freeze, desiccated (hygroscopic). color: white. solubility: water: 2 . mg/mL. shipped in: ambient. storage temp.: −. 20°C. Storage Class Code: 11 - Combustible Solids. WGK: WGK 1. Flash Point(F): Not applicable. Flash Point(C): Not applicable.- UPC:
- 12352200
- Condition:
- New
- Weight:
- 1.00 Ounces
- HazmatClass:
- No
- WeightUOM:
- LB
- MPN:
- 420116-1MG