Peptides

Z-LRGG-AMC is a fluorogenic substrate for isopeptidase T. Upon enzymatic cleavage by isopeptidase T, 7-amino-4-methylcoumarin (AMC) is released and its fluorescence can be used to quantify isopeptidase T activity. AMC displays excitation/emission maxima of 340-360/440-460 nm, respectively.

Hexapeptide-11 is a synthetic hexapeptide. Hexapeptide-11 (5% v/v) increases the expression of the antioxidant genes Nrf2, Keap1, NQO1, and TXNRD1 and decreases hydrogen peroxide-induced senescence of IMR-90 human lung fibroblasts in vitro. Hexapeptide-11 (5% v/v) increases the activity of matrix metalloproteinase-2...

Myristoyl hexapeptide-16 is a myristoylated form of the hexapeptide Leu-Lys-Lys-Ala-Leu-Lys. An acid form of myristoyl hexapeptide-16 is active against E. coli, P. aeruginosa, S. aureus, and methicillin-resistant S. aureus (MRSA, MICs = =100 ppm for all).

Palmitoyl tripeptide-38 is a palmitoylated form of the tripeptide Lys-Met(O2)-Lys-OH. It increases the levels of collagen I, collagen II, fibronectin, and hyaluronic acid by 187, 97, 109, and 55%, respectively, produced by isolated human dermal fibroblasts when used at a concentration of 6 ppm.

N-(p-Tosyl)-GPR-pNA is a colorimetric substrate for thrombin. Thrombin preferentially binds to and cleaves the Gly-Pro-Arg (GPR) peptide sequence to release p-nitroanilide (pNA), which can be quantified by colorimetric detection at 405 nm as a measure of thrombin activity.

Z-D-Arg-Gly-Arg-pNA is a colorimetric substrate for Factor Xa. Factor Xa preferentially binds to and cleaves the Arg-Gly-Arg (RGR) peptide sequence to release p-nitroanilide (pNA), which can be quantified by colorimetric detection at 405 nm as a measure of Factor Xa activity.

D-Pro-Phe-Arg-pNA is a colorimetric substrate for plasma kallikrein. Plasma kallikrein preferentially binds to and cleaves the D-Pro-Phe-Arg (PFR) peptide sequence to release p-nitroanilide (pNA), which can be quantified by colorimetric detection at 405 nm as a measure of plasma kallikrein activity.

MeO-Suc-RPY-pNA is a colorimetric substrate for serine proteases, including trypsin, chymotrypsin, kallikrein-related peptidase 7 (KLK7), and kallikrein-related peptidase 3/prostate-specific antigen. Serine proteases preferentially bind to and cleave the Arg-Pro-Tyr (RPY) peptide sequence to release p-nitroanilide...

Bz-Nle-KRR-AMC is a fluorogenic peptide substrate for yellow fever virus (YFV) non-structural 3 (NS3) and dengue virus (DV) NS2B/3 serine proteases. Upon enzymatic cleavage by YFV NS3 or DV NS2B/3 serine proteases, 7-amino-4-methylcoumarin (AMC) is released and its fluorescence can be used to quantify YFV NS3 or DV...

Ac-QQQ-AMC is a fluorogenic probe. L-Glutamine tripeptide (QQQ) is a substrate for peptidoglutaminase I and II from the bacterium B. circulans. AMC displays excitation/emission maxima of 340-360/440-460 nm, respectively.

GHK-Cu is a complex of the tripeptide Gly-His-Lys and a copper(II) ion that has wound healing and anti-inflammatory activities. It increases proliferation and the levels of collagen and secreted pro-matrix metalloproteinase-2 (MMP-2) in isolated human fibroblasts when used at a concentration of 1 nM. GHK-Cu (2 mg)...

Pentagastrin is a synthetic polypeptide and cholecystokinin-2 (CCK2) receptor agonist. It binds selectively to CCK2 receptors in guinea pig brain over CCK1 receptors in rat pancreas (IC50s = 11 and 1,100 nM, respectively). Pentagastrin increases calcium influx and polyphosphoinositide turnover in rat GH3 pituitary...