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Sigma-Aldrich

Fas/FasL Antagonist, Kp7-6

The Fas/FasL Antagonist, Kp7-6 controls the biological activity of Fas/FasL. This small molecule/inhibitor is primarily used for Cancer applications.

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Synonym(s):
Fas/FasL Antagonist, Kp7-6, H-YC*DEHFC*Y-OH, Cyclic [Cys-Cys disulfide], Kp7-6
Empirical Formula (Hill Notation):
C48H56N10O15S2
Molecular Weight:
1077.15

Quality Level

Assay

≥98% (HPLC)

form

lyophilized powder

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze
desiccated (hygroscopic)
protect from light

color

white

solubility

DMSO: 5 mg/mL

shipped in

ambient

storage temp.

2-8°C

General description

An exocyclic cysteine-knot peptide that specifically antagonizes Fas/FasL-mediated cellular apoptotic signals (58% reduction of FasL-induced apoptosis in Jurkat cells at 1 mg/ml). Binds to FasL (Cat. Nos. PF033 and PF092) and Fas (CD95/APO-1) with comparable affinity (Kd = 11.2 & 13.2 µM, respectively), resulting in disabled receptor ensembles and altered signaling. Shown to prevent Con A (Cat. No. 234567)-induced liver injury in a murine hepatitis model in vivo. Does not bind to TNF-α or TNFR.
An exocyclic cystine-knot peptide that specifically antagonizes Fas/FasL-mediated cellular apoptotic signals (58% reduction of FasL-induced apoptosis in Jurkat cells at 1 mg/ml). Binds to FasL (Cat. Nos. PF033 and PF092) and Fas (CD95/APO-1) with comparable affinity (Kd = 11.2 & 13.2 µM, respectively), resulting in disabled receptor ensembles and altered signaling pathways. Shown to prevent Con A (Cat. No. 234567)-induced liver injury in a murine hepatitis model in vivo. Does not bind to TNF-α or TNFR.

Biochem/physiol Actions

Cell permeable: no
Kd = 11.2 & 13.2 µM for FasL and Fas (CD95/APO-1), respectively
Primary Target
Fas/FasL-mediated cellular apoptotic signals
Product does not compete with ATP.
Reversible: no

Packaging

Packaged under inert gas

Warning

Toxicity: Standard Handling (A)

Sequence

H₂N-Tyr-Cys*-Asp-Glu-His-Phe-Cys*-Tyr-CO₂H, Cyclic [disulfide bond between Cys-Cys]

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

Carmona, E.M., et al. 2006. J. Immunol.177, 459.
Hasegawa, A., et al. 2004. Proc. Natl. Acad. Sci. USA101, 6599.

Legal Information

Sold under license of U.S. Patent 7,288,519.
CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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