N-WASP-Inhibitor, 187-1

A 14-amino acid cyclic peptide that potently blocks phosphatidylinositol 4,5-bisphosphate (PIP₂)-induced actin assembly in Xenopus egg cytoplasmic extract (IC₅₀ ~ 2 µM). Shown to directly bind to neural Wiskott Aldrich syndrome protein (N-WASP) with high-affinity, and prevent the activation of actin-related protein 2/3 (Arp2/3) complex by inhibiting the interaction between N-WASP and Arp2/3.

A 14-amino acid cyclic peptide that potently blocks phosphatidylinositol 4,5-bisphosphate (PIP₂)-induced actin assembly in Xenopus egg cytoplasmic extract (IC₅₀ ~2 µM). Shown to directly bind to neural Wiskott Aldrich syndrome protein (N-WASP) with high-affinity, and allosterically stabilize the autoinhibited conformation of N-WASP. It prevents the activation of actin-related protein 2/3 (Arp2/3) complex by blocking the interaction between N-WASP and Arp2/3.

Primary Target
Neural Wiskott Aldrich syndrome protein (N-WASP)

Target IC₅₀: ~ 2 µM blocking phosphatidylinositol 4,5-bisphosphate (PIP2)-induced actin assembly in Xenopus egg cytoplasmic extract

Toxicity: Standard Handling (A)

cyclo(LLys-DPhe-DPro-DPhe-LPhe-DPro-LGln)₂

Supplied as a trifluoroacetate salt.

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 1 month at -20°C.

Peterson, J.R., et al. 2001. Proc. Natl. Acad. Sci. USA98, 10624.
Suetsugu, S., et al. 2001. J. Biol. Chem.276, 33175.

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