β-Secretase Substrate IV, Fluorogenic

A highly sensitive fluorescence resonance energy transfer (FRET) peptide substrate (excitation max.: ~350 nm; emission max.: ~490), based on the GVNLDAEF sequence derived from the β-secretase site of the Swedish mutation of Amyloid Precursor Protein. Hydrolysis of the substrate at Leu-Asp bond by β-secretase results in fluorescence enhancement. Reported K_cat/k_m values (min^-1/µM) for pro-mempasin 2 and its proteolytically activated species Leu^28p-mempasin 2 are 0.044 and 0.040, respectively (at pH 4.5, 37°C).

A highly sensitive fluorescence resonance energy transfer (FRET) peptide substrate, based on the EVNLDAEF sequence derived from the β-secretase site of the Swedish mutation of Amyloid Precursor Protein (APP). Hydrolysis of the substrate (Leu-Asp cleavage) by β-secretase results in fluorescence enhancement. k_cat/K_m values (min^-1/µM) at 37°C, pH 4.5, for pro-memapsin 2 and its activated species Leu^28p-memapsin 2 are 0.044 and 0.040, respectively.

Cell permeable: no

Primary Target
β-secretase substrate

Product does not compete with ATP.

Reversible: no

Packaged under inert gas

Toxicity: Standard Handling (A)

H-Arg-Glu(EDANS)Glu-Val-Asn-Leu-Asp-Ala-Glu-Phe-Lys(DABCYL)Arg-OH

Supplied as a trifluoroacetate salt.

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

Ermolieff, J., et al. 2000. Biochemistry 39, 12450.

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