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Cat. No. Name Size Price Add Cart
KP1471 Renin FRET Substrate I(DABCYL - g - Abu - Ile - His - Pro - Phe - His - Leu - Val - Ile - His - Thr - EDANS) 1 mg $211

Product Information

Product NameRenin FRET Substrate I(DABCYL - g - Abu - Ile - His - Pro - Phe - His - Leu - Val - Ile - His - Thr - EDANS)
Molecular Weight 1797.9
Storage-20°C desiccated and protected from light
DescriptionDABCYL-GABA-Ile-His-Pro-Phe-His-Leu-Val-Ile-His-Thr-EDANS (also called Renin Substrate I in some literature) contains a renin cleavage site that occurs in the N-terminal peptide of human angiotensinogen. Cleavage of the substrate occurs specifically at the Leu-Val bond and corresponds to the renin cleavage site of angiotensinogen. This fluorogenic peptide substrate is used to continuously measure the proteolytic activity of human renin. The assay relies upon FRET-mediated, intramolecular fluorescence quenching that occurs in the intact peptide substrate. Efficient fluorescence quenching occurs as a result of favorable energetic overlap of the EDANS excited state and the DABCYL absorption, and the relatively long excited state lifetime of the EDANS fluorophore. Cleavage of the substrate by renin liberates the peptidyl-EDANS fragment from proximity with the DABCYL acceptor, restoring the fluorescence of the EDANS moiety. This leads to a time-dependent increase in fluorescence intensity, directly related to the extent of substrate cleavage. The kinetics of renin-catalyzed hydrolysis of this substrate is shown to be consistent with a simple substrate inhibition model with a substrate Km approximately equal to 1.5 mM at physiological pH. The substrate can detect renin as low as 30 ng/mL after an incubation of only 3-5 min.Minimum Purity: 95%
ReferencesWang GT, et al. (1993). A continuous fluorescence assay of renin activity. Anal Biochem 210, 351-9, Nakamura N, et al. (1991). Identification of the active site of human renin with use of new fluorogenic peptides. J Biochem (Tokyo) 109, 741-5, Murakami K, et al. (1981). New fluorogenic substrates for renin. Anal Biochem 110, 232-9.
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Our products are used for research, laboratory and further evaluation purposes. They are not for human use.
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