Renin FRET Substrate I

DABCYL-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.

Online Inquiry

CAT#X21217
M.W/Mr.1798.2
SequenceOne Letter Code: DABCYL-g-Abu-IHPFHLVIHT-EDANS
Three Letter Code: DABCYL-g-Abu-Ile-His-Pro-Phe-His-Leu-Val-Ile-His-Thr-EDANS
Quick Inquiry
×
If you have any peptide synthesis requirement in mind, please do not hesitate to contact us at . We will endeavor to provide highly satisfying products and services.
Customer Support & Price Inquiry

* Please kindly note that our products and services can only be used to support research purposes (Not for clinical use).

Creative Peptides has accumulated a huge library of peptide knowledge including frontier peptide articles, application of peptides, useful tools, and more!

Discovery and Structure Calcitonin, also called thyrocalcitonin, a protein hormone synthesized and secreted in humans and oth ...

  Delcasertib, also known as KAI-9803, is a 23-amino acid peptide and δ-protein kinase C (δ-PKC) inhibitor. KAI-9 ...

 Figure 1. The structural formula of ornipressinOrnipressin is a synthetic analogue of vasopressin, which is repl ...

Peptides are compounds formed by linking α-amino acids by peptide bonds, and are intermediate products of proteolysis. They a ...

 Endothelin-1 (ET-1) is a vasoactive peptide containing 21 amino acids, which was first isolated from the culture ...

Contact Us

USA

Address:

Tel: |

Email:

Germany

Address:

Copyright © 2024 Creative Peptides. All rights reserved.