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An internally-quenched fluorogenic decapeptide substrate that is useful for continuous monitoring of TACE activity and high-throughput screening of TACE inhibitors (kcat = 21.6 s-1 and substrate concentration at half the Vmax, S0.5 = 342 µM). The substrate is cleaved at Ala-Val amide bond. Acts as a poor substrate for MMP-1, MMP-9, and MMP-13. Displays better solubility in aqueous buffers.
Catalogue Number
616407
Brand Family
Calbiochem®
Synonyms
TNF-α Convertase Enzyme Substrate IV, Fluorogenic, Abz-LAQAVRSSSR-Dpa, ADAM-17 Substrate IV, Fluorogenic
Note that this data sheet is not lot-specific and is representative of the current specifications for this product. Please consult the vial label and the certificate of analysis for information on specific lots. Also note that shipping conditions may differ from storage conditions.
Revision
17-December-2018 JSW
Synonyms
TNF-α Convertase Enzyme Substrate IV, Fluorogenic, Abz-LAQAVRSSSR-Dpa, ADAM-17 Substrate IV, Fluorogenic
Description
An internally quenched, fluorogenic, 10-amino acid peptide substrate that is useful for monitoring TNF-α Convertase Enzyme (TACE) activity by a continuous fluorometric assay. Also useful for screening TACE inhibitors (kcat = 21.6 s-1 when the substrate concentration is half the Vmax, S0.5 = 342 µM). The substrate is cleaved at the Ala-Val amide bond. The substrate is not substantially cleaved by MMP-1, MMP-9, or MMP-13. Displays improved solubility in aqueous buffers. Excitation max: ~320 nm; Emission max: ~420 nm.
Form
Yellow lyophilized solid
Formulation
Supplied as a trifluoroacetate salt.
Recommended reaction conditions
50 mM Tris-HCl, pH 7.4, 25 mM NaCl, 4% glycerol.
Chemical formula
C₅₉H₉₃N₂₃O₂₀
Peptide Sequence
Abz-Leu-Ala-Gln-Ala-Val-Arg-Ser-Ser-Ser-Arg-Dpa
Purity
≥95% by HPLC
Solubility
DMSO (5 mg/ml)
Storage
Protect from moisture
Protect from light
+2°C to +8°C
Do Not Freeze
Ok to freeze
Special Instructions
Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 6 months at -20°C.