NEMO-Binding Domain Binding Peptide, Cell-Permeable

A cell-permeable Antennapedia-NBD (NEMO binding domain) (wild type) fusion peptide that exhibits anti-inflammatory activity in mouse model of acute inflammation. NBD is an amino terminal α-helical region of the NEMO (NF-κB essential modifier; IKKγ) associated with a carboxyl-terminal segment of IKKα and IKKβ. This peptide blocks the association of NEMO with the IKK complex and prevents NF-κB activation. NEMO is also reported to suppress the intrinsic basal activity of the IKK complex. Its anti-inflammatory properties are attributed to the inhibition of cytokine-induced NF-κB activation and NF-κB-dependent gene expression. Does neither affect the TNF-α-induced phosphorylation of c-Jun nor the DNA binding of Oct-1 transcription factor.

A cell-permeable Antennapedia-NBD (wild type) fusion peptide that exhibits anti-inflammatory properties. Acts by inhibiting cytokine-induced NF-κB activation and NF-κB-dependent gene expression. Suggested to block the interaction of NEMO with the IKK (IκB)-kinase complex and thereby prevents NF-κB activation. Does not affect the TNF-α-induced phosphorylation of c-Jun and DNA binding of the transcription factor Oct-1.

Cell permeable: yes

Primary Target
cytokine-induced NF-κB activation and NF-κB-dependent gene expression

Product does not compete with ATP.

Reversible: no

Packaged under inert gas

Supplied as a trifluoroacetate salt.

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

H-Asp-Arg-Gln-Ile-Lys-Ile-Trp-Phe-Gln-Asn-Arg-Arg-Met-Lys-Trp-Lys-Lys-Thr-Ala-Leu-Asp-Trp-Ser-Trp-Leu-Gln-Thr-Glu-OH

Jimi, E., et al. 2004. Nat. Med., 10, 617.
Siegmund, D., et al. 2001. J. Biol. Chem.276, 43708.
May, M.J., et al. 2000. Science289, 1550.
Li, Q., et al. 1999. Science284, 321.

Note: This peptide will precipitate when added to tissue culture medium even at 100 µM concentrations. However, sufficient material will stay in the medium to permeate cells.

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

Toxicity: Standard Handling (A)