[Assays and Substrates] Isopeptidase-Fluorogenic Assays_ZEDIRA - 코아사이언스

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Isopeptidase-FluorogenicAssays

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Transglutaminases are best known for their crosslinking activity but also can cleave isopeptide bonds. This feature is used to provide easy to handle, robust and precise fluorogenic assays to measure transglutaminase isoenzymes. The assays are suitable for drug discovery programs and quality assurance.

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Transglutaminases cleave the carboxamide bond and thereby release the dark quencher (2,4-dinitrophenyl, DNP) linked to a cadaverine spacer. The increase in fluorescence results from the unquenched N-terminally attached fluorophore 2-amino benzoic acid (2-Abz).

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Assay principle: Cleavage of a carboxamide bond is catalyzed by transglutaminase. The release of the dark quencher is followed by incorporation of glycine methylester. After the dark quencher is released, the fluorescence of the dequenched

2-Abz-dye increases – “the assay directly monitors transglutaminase activity”. The specific backbone provides selectivity and affinity to the assay peptides for the respective TG isoenzyme.

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Further, the well-known fluorogenic substrate A101 is not only suitable for FXIII measurement but also for the determination of TG1, TG2, TG3, and TG6.

 

Ordering Information

Cat. No.	Name	Unit
A101	FXIII-Assay Substance, Abz-NE(CAD-DNP)EQVSPLTLLK-OH	10 mg
A168	Abz-Peptide-calibrator	10 mg
A171	N-Me-Abz-Peptide-Calibrator	10 mg
F001	ZediXcite 330/418 Fluorogenic FXIII-Assay Kit Isopeptidase-activity based FXIII assay (313/418 nm) Based on substrate A101	1 Kit
F014	ZediXcite 330/418 Fluorogenic TG2-Assay Kit Isopeptidase-activity based TG2 assay (330/418 nm)	1 Kit
F015	ZediXcite 330/418 Fluorogenic MTG-Assay Kit Isopeptidase-activity based MTG assay (330/418 nm)	1 Kit
F016	ZediXcite 360/460 Fluorogenic TG2-Assay Kit Isopeptidase-activity based TG2 assay (360/460 nm)	1 Kit

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