506350

Pam₃Cys-Ser-(Lys)₄, Hydrochloride

≥90% (HPLC), lyophilized solid, TLR1/TLR2 agonist, Calbiochem^®

• Synonym(s): Pam₃Cys-Ser-(Lys)₄, Hydrochloride, (S)-[2,3-Bis(palmitoyloxy)-(2-RS)-propyl]-N-palmitoyl-(R)-Cys-(S)-Ser-(S)-Lys₄-OH, 3HCl, P₃CSK₄, 3HCl, Pam₃Cys-SK₄, 3HCl, Pam3CSK4, TLR1/TLR2 Agonist I
• Empirical Formula (Hill Notation): C₈₁H₁₅₆N₁₀O₁₃S · 3HCl
• CAS Number: 112208-00-1
• Molecular Weight: 1619.61
• UNSPSC Code: 51111800
• NACRES: NA.77

Properties

• product name: Pam₃Cys-Ser-(Lys)₄, Hydrochloride,
• Assay: ≥90% (HPLC)
• Quality Level: 100
• form: lyophilized solid
• manufacturer/tradename: Calbiochem^®
• storage condition: OK to freeze; desiccated
• solubility: water: 2 mg/mL
• shipped in: wet ice
• storage temp.: −20°C
• InChI: 1S/C81H156N10O13S/c1-4-7-10-13-16-19-22-25-28-31-34-37-40-55-73(93)86-72(65-105-64-66(104-75(95)57-42-39-36-33-30-27-24-21-18-15-12-9-6-3)63-103-74(94)56-41-38-35-32-29-26-23-20-17-14-11-8-5-2)80(100)91-71(62-92)79(99)89-68(52-44-48-59-83)77(97)87-67(51-43-47-58-82)76(96)88-69(53-45-49-60-84)78(98)90-70(81(101)102)54-46-50-61-85/h66-72,92H,4-65,82-85H2,1-3H3,(H,86,93)(H,87,97)(H,88,96)(H,89,99)(H,90,98)(H,91,100)(H,101,102)/t66?,67-,68-,69-,70-,71-,72-/m0/s1
• InChI key: OEDPHAKKZGDBEV-GFPBKZJXSA-N

Description

General description

Pam3CSK4 is a selective toll-like receptor 1/2 (TLR1/2) agonist used in the investigation of TLR1/2 function. It is a synthetic lipopeptide for TLR1/2 and mimics the acylated amino terminus of bacterial lipopeptides. Pam3CSK4, with its three lipid chains, facilitates receptor heterodimerization. The two ester-bound lipid chains are inserted into a pocket in TLR2, while the amide-bound lipid chain is inserted into a hydrophobic channel in TLR1. In the context of human uveitis, endophthalmitis, and experimental uveitis models, Pam3CSK4 triggers the expression and secretion of various cytokines and chemokines in intraocular fluids and/or tissues. A cell-permeable, water-soluble synthetic cationic lipohexapeptide analog of the immunologically active N-terminal portion of bacterial lipoprotein that potently activates monocytes and macrophages. Induces the release of IL-1, IL-6, TNF-α, superoxide, and NO. Promotes the translocation of NF-κB, enhances tyrosine protein phosphorylation and activation of ERK1/2 and MEK1/2.

Application

Pam₃Cys-Ser-(Lys)₄, Hydrochloride has been used to stimulate MODE-K cells to access its effects on epithelial neuropilin-1 (NRP1) protein expression. It has been used as a toll-like receptor 2 (TLR2) ligand to study TLR2 functionalities.

Warning

Toxicity: Standard Handling (A)

Reconstitution

Following reconstitution, aliquot and freeze (-20°C). Avoid freeze/thaw cycles of solutions.

Other Notes

Barrenschee, M., et al. 2010. PLoS One.5, e13889.
Zahringer, U., et al. 2008. Immunology.213, 205.
Toshchakov, V., et al. 2002. Nat. Immunol.3, 392.
Muller, M.R., et al. 2001. Immunology103, 49.
Vergne, I., and Cezanne, L. 1999. Eur. J. Biochem.264, 369.
Diaz-Guerra, M.J., et al. 1996. J. Biol. Chem.271, 30114.
Offermanns, S., et al. 1992. Biochem. J.282, 551.
Seifert, R., et al. 1990. Biochem. J.267, 795.
Hoffmann, P., et al. 1989. Biol. Chem. Hoppe. Seyler.370, 575.

Legal Information

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

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable