613570

TIRAP Inhibitor Peptide, Cell-Permeable

The TIRAP Inhibitor Peptide, Cell-Permeable blocks LPS-, but not CpG-induced NF-κB activation. This small molecule/inhibitor is primarily used for Inflammation/Immunology applications.

• Synonym(s): TIRAP Inhibitor Peptide, Cell-Permeable, Mal Peptide, MyD88-Adapter-Like Peptide, Toll-interleukin 1 Receptor (TIR) domain-containing Adapter Protein Peptide, Ant-Tirap _138-151, TIRAP Peptide, (RQIKIWFNRRMKWKKLQLRDAAPGGAIVS)
• Empirical Formula (Hill Notation): C₁₆₃H₂₆₈N₅₂O₃₈S
• Molecular Weight: 3596.26
• UNSPSC Code: 12352202
• NACRES: NA.77

Properties

• Quality Level: 100
• assay: ≥97% (HPLC)
• form: lyophilized solid
• manufacturer/tradename: Calbiochem^®
• storage condition: OK to freeze; desiccated (hygroscopic); protect from light
• color: white
• solubility: DMSO: 5 mg/mL
• shipped in: wet ice
• storage temp.: −20°C

Description

General description

A cell-permeable synthetic peptide containing mouse TIRAP_138-151 fused to the Drosophila Antennapedia sequence. Specifically inhibits LPS-, but not CpG-induced NF-κB activation, PKR phosphorylation, and JNK phosphorylation in RAW.κB cells at ~40 µM. Also reported to block IκBα degradation.

A synthetic, cell-permeable peptide that corresponds to mouse toll-interleukin 1 receptor (TIR) domain-containing adapter protein 138-151 (TIRAP; also called Mal (MyD88-adapter-like), fused to the Drosophila antennapedia sequence. Shown to specifically inhibit LPS-induced, but not CpG-induced, NF-κB activation, PKR phosphorylation, and JNK phosphorylation in RAW.κB cells at ~40 µM. Also reported to block IκBα degradation.

Biochem/physiol Actions

Cell permeable: yes

Primary Target
LPS-induced NF-κB activation, PKR phosphorylation, and JNK phosphorylation in RAW.kB cells

Product does not compete with ATP.

Reversible: no

Packaging

Packaged under inert gas

Warning

Toxicity: Standard Handling (A)

Sequence

H-Arg-Gln-Ile-Lys-Ile-Trp-Phe-Gln-Asn-Arg-Arg-Met-Lys-Trp-Lys-Lys-Leu-Gln-Leu-Arg-Asp-Ala-Ala-Pro-Gly-Gly-Ala-Ile-Val-Ser-OH

Physical form

Supplied as a trifluoroacetate salt.

Reconstitution

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20°C.

Other Notes

Toshchakov, V., et al. 2002. Nat. Immunol.3, 392.
Fitzgerald, K.A., et al. 2001. Nature413, 78.
Henneke, P. and Golenbock, D.T. 2001. Nat. Immunol.2, 828.
Horng, T., et al. 2001. Nat. Immunol.2, 835.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable