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. 1995 Jan 1;224(1):409-12.
doi: 10.1006/abio.1995.1058.

Internally quenched fluorogenic substrate for furin

H Angliker  1 , U Neumann, S S Molloy, G Thomas
Affiliations

Internally quenched fluorogenic substrate for furin

H Angliker et al. Anal Biochem. .

Abstract

A new substrate for furin, Abz-Arg-Val-Lys-Arg-Gly-Leu-Ala-Tyr(NO2)-Asp-OH, has been synthesized and characterized. The peptide is an internally quenched fluorogenic substrate. The kinetic parameters are Km = 3.8 microM, kcat = 29.3 s-1, and kcat/KM = 7,710,000 M-1 s-1. The substrate is efficiently cleaved by furin; its kcat/KM value is over 2000-fold higher than that of the commonly used substrate Boc-Arg-Val-Arg-Arg-AMC.

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