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Gly-Pro-AMC *CAS 115035-46-6*

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Physical properties
Molecular weight443.37
Spectral properties
Excitation (nm)341
Emission (nm)441
Storage, safety and handling
Certificate of OriginDownload PDF
H-phraseH303, H313, H333
Hazard symbolXN
Intended useResearch Use Only (RUO)
R-phraseR20, R21, R22
StorageFreeze (< -15 °C); Minimize light exposure


See also: Coumarins, Proteases
Molecular weight
Excitation (nm)
Emission (nm)
Gly-Pro-AMC is a sensitive fluorogenic substrate for detecting dipeptidyl peptidase IV (DPPIV), a serine protease that cleaves N-terminal dipeptides from polypeptides with L-proline or L-alanine at the penultimate position. DPPIV is a multifunctional protein expressed on the surface of several cell types including epithelial, endothelial and lymphoid cells. It is identical to the T cell activation antigen CD26 and the adenosine deaminase binding protein, and it is also released as a soluble form in plasma. The substrates of CD26/DPPIV include a wide variety of proline-containing peptides such as growth factors, chemokines, neuropeptides, and vasoactive peptides. DPPIV is involved in immune regulation, signal transduction, and apoptosis, and appears to play an important role in tumor progression. Importantly, DPPIV is a therapeutic target for type II diabetes due to its role as a serum protease that cleaves incretin hormones of the glucagon family of peptides and thus regulates glucose homeostasis. Studies indicate that a DPPIV inhibitor improves impaired glucose tolerance. The assay of DPPIV with Gly-Pro-AMC is a simple, fast and flexible assay that is ideal for high-through put screening. The assay demonstrates improved sensitivity compared to colorimetric DPPIV assays, allowing the researcher to use less enzyme while still achieving appropriate Z' values. The homogeneous coupled-enzyme format is convenient, requiring only a single reagent addition to the test samples. Maximal sensitivity is achieved in 20-30 minutes, and the signal generated is very stable.


Fluorescence microplate reader

Excitation380 nm
Emission500 nm
Cutoff435 nm
Recommended plateSolid black

Example protocol


Important notes
The following protocol is recommended procedure, the optimum conditions must be determined experimentally for each test.


Unless otherwise noted, all unused stock solutions should be divided into single-use aliquots and stored at -20 °C after preparation. Avoid repeated freeze-thaw cycles.

1. Gly-Pro-AMC stock solution:
Make a 10 to 25 mM Gly-Pro-AMC stock solution in DMSO. Keep from light. Note: The stock solution should be used promptly; any unused solution should be aliquoted and frozen at -20 o C. Note: Avoid repeated freeze-thaw cycles and keep from light.


Gly-Pro-AMC working solution:
Take one vial out, and make 50 to 100 µM assay solution by diluting the stock solution with an assay buffer of your choice (such as 50 mM Tris-HCl, pH 7.5, 1.0 mM DTT).


  1. Mix equal volume of the DPPIV standards or samples with the assay solution, and incubate at room temperature for at least 1 hour.

  2. Monitor the fluorescence increase at Ex/Em = 380/500 nm.


Common stock solution preparation

Table 1. Volume of DMSO needed to reconstitute specific mass of Gly-Pro-AMC *CAS 115035-46-6* to given concentration. Note that volume is only for preparing stock solution. Refer to sample experimental protocol for appropriate experimental/physiological buffers.

0.1 mg0.5 mg1 mg5 mg10 mg
1 mM225.545 µL1.128 mL2.255 mL11.277 mL22.555 mL
5 mM45.109 µL225.545 µL451.091 µL2.255 mL4.511 mL
10 mM22.555 µL112.773 µL225.545 µL1.128 mL2.255 mL

Molarity calculator

Enter any two values (mass, volume, concentration) to calculate the third.

Mass (Calculate)Molecular weightVolume (Calculate)Concentration (Calculate)Moles


Open in Advanced Spectrum Viewer

Spectral properties

Excitation (nm)341
Emission (nm)441



View all 8 citations: Citation Explorer
Activation of the NLRP1 Inflammasome and Its Role in Transmissible Gastroenteritis Coronavirus Infection
Authors: He, Haojie and Wang, Wenzhe and Li, Liang and Zhang, Xin and Shi, Hongyan and Chen, Jianfei and Shi, Da and Xue, Mei and Feng, Li
Journal: Journal of Virology (2023): e00589--23
Collagen peptides with DPP-IV inhibitory activity from sheep skin and their stability to in vitro gastrointestinal digestion
Authors: Wang, Beibei and Yu, Zhe and Yokoyama, Wallace and Chiou, Bor-Sen and Chen, Maoshen and Liu, Fei and Zhong, Fang
Journal: Food Bioscience (2021): 101161
Identification of curcumin as a potential $\alpha$-glucosidase and dipeptidyl-peptidase 4 inhibitor: Molecular docking study, in vitro and in vivo biological evaluation
Authors: Cao, Wanxiu and Chen, Xin and Chin, Yaoxian and Zheng, Jinkai and Lim, Phaik Eem and Xue, Changhu and Tang, Qingjuan
Journal: Journal of Food Biochemistry (2021): e13686
Characterization of DPP-IV Inhibitory Peptides Using an In Vitro Cell Culture Model of the Intestine
Authors: Jin, Ritian and Shang, Jiaqi and Teng, Xiangyu and Zhang, Ligang and Liao, Minhe and Kang, Jiaxin and Meng, Ran and Wang, Dangfeng and Ren, Haowei and Liu, Ning
Journal: Journal of Agricultural and Food Chemistry (2021): 2711--2718
Manipulation of saliva-derived microcosm biofilms to resemble dysbiotic subgingival microbiota
Authors: Jiang, Yaling and Brandt, Bernd W and Buijs, Mark J and Cheng, Lei and Exterkate, Rob AM and Crielaard, Wim and Deng, Dong Mei
Journal: Applied and Environmental Microbiology (2021): e02371--20
Characterization of seaweed hypoglycemic property with integration of virtual screening for identification of bioactive compounds
Authors: Chin, Yao Xian and Chen, Xin and Cao, Wan Xiu and Sharifuddin, Yurizam and Green, Brian D and Lim, Phaik Eem and Xue, Chang Hu and Tang, Qing Juan
Journal: Journal of Functional Foods (2019): 103656
Effects of activated carbon N-acetylcysteine sustained-release microcapsule on dipeptidyl peptidase IV expression in young rats with non-alcoholic fatty liver disease
Authors: Zhou, Hongping and Shi, Tingting and Yan, Jun and Chen, Xiaojin and Liao, Li and Zhao, Shiyong and Fang, Hongying and Zhuang, Rangxiao
Journal: Experimental and therapeutic medicine (2017): 4737--4744
Effects of activated carbon N-acetylcysteine sustained-release microcapsule on dipeptidyl peptidase IV expression in young rats with non-alcoholic fatty liver disease
Authors: Zhou, Hongping and Shi, Tingting and Yan, Jun and Chen, Xiaojin and Liao, Li and Zhao, Shiyong and Fang, Hongying and Zhuang, Rangxiao
Journal: Experimental and Therapeutic Medicine (2017): 4737--4744


View all 7 references: Citation Explorer
Slow-binding inhibition of peptide deformylase by cyclic peptidomimetics as revealed by a new spectrophotometric assay
Authors: Nguyen KT, Hu X, Pei D.
Journal: Bioorg Chem (2004): 178
Activity of DPP III in human cerebrospinal fluid derived from patients with pain
Authors: Sato H, Kimura K, Yamamoto Y, Hazato T.
Journal: Masui (2003): 257
Dipeptidyl peptidase I: importance of progranzyme activation sequences, other dipeptide sequences, and the N-terminal amino group of synthetic substrates for enzyme activity
Authors: Tran TV, Ellis KA, Kam CM, Hudig D, Powers JC.
Journal: Arch Biochem Biophys (2002): 160
Extracellular peptidases of imaginal discs of Drosophila melanogaster
Authors: Wilson CL, Shirras AD, Isaac RE.
Journal: Peptides (2002): 2007
Purification and characterization of barley dipeptidyl peptidase IV
Authors: Davy A, Thomsen KK, Juliano MA, Alves LC, Svendsen I, Simpson DJ.
Journal: Plant Physiol (2000): 425
NVP-DPP728 (1-[[[2-[(5-cyanopyridin-2-yl)amino]ethyl]amino]acetyl]-2-cyano-(S)- pyrrolidine), a slow-binding inhibitor of dipeptidyl peptidase IV
Authors: Hughes TE, Mone MD, Russell ME, Weldon SC, Villhauer EB.
Journal: Biochemistry (1999): 11597
Dipeptidyl peptidase IV (DP IV) and superoxide dismutase activity in thymus-derived lymphocytes: effects of inhibitory peptides and Zn2+ in vitro
Authors: Endroczi E, Hepp J, Sasvary M, Walentin S, Levay G.
Journal: Acta Physiol Hung (1990): 35