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Physical properties
Molecular weight791.94
Spectral properties
Excitation (nm)341
Emission (nm)441
Storage, safety and handling
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)
Suc-LLVY-AMC is a sentive fluorogenic substrate for 20S proteasome, calpains and other chymotrypsin-like proteases. The non-fluorescent substrate generates a bright blue fluorescent AMC product that has an emission spectra that can be easily detected with the DAPI filter set. The most common form of the proteasome is known as the 26S proteasome that contains one 20S core particle structure and two 19S regulatory caps. All 20S particles consist of four stacked heptameric ring structures that are themselves composed of two different types of subunits; alpha subunits are structural in nature, whereas beta subunits are predominantly catalytic. The outer two rings in the stack consist of seven alpha subunits each, which serve as docking domains for the regulatory particles and the alpha subunits N-termini form a gate that blocks unregulated access of substrates to the interior cavity. The inner two rings each consist of seven beta subunits and contain the protease active sites that perform the proteolysis reactions.


Common stock solution preparation

Table 1. Volume of DMSO needed to reconstitute specific mass of Suc-LLVY-AMC 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 mM126.272 µL631.361 µL1.263 mL6.314 mL12.627 mL
5 mM25.254 µL126.272 µL252.544 µL1.263 mL2.525 mL
10 mM12.627 µL63.136 µL126.272 µL631.361 µL1.263 mL

Molarity calculator

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

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Spectral properties

Excitation (nm)341
Emission (nm)441

Product Family

NameExcitation (nm)Emission (nm)Extinction coefficient (cm -1 M -1)



View all 6 citations: Citation Explorer
Lanosterol modulates proteostasis via dissolving cytosolic sequestosomes/aggresome-like induced structures
Authors: Hu, Li-Dan and Wang, Jing and Chen, Xiang-Jun and Yan, Yong-Bin
Journal: Biochimica et Biophysica Acta (BBA)-Molecular Cell Research (2019): 118617
Calpain inhibition improves erectile function in diabetic mice via upregulating endothelial nitric oxide synthase expression and reducing apoptosis.
Authors: Li, Hao and Chen, Li-Ping and Wang, Tao and Wang, Shao-Gang and Liu, Ji-Hong
Journal: Asian journal of andrology (2018)
Diabetogenic agent alloxan is a proteasome inhibitor
Authors: Zhou, Wenjuan and Wei, Lingling and Xiao, Ting and Lai, Chunyou and Peng, Min and Xu, Lingli and Luo, Xiangwei and Deng, Shaoping and Zhang, Fengxue
Journal: Biochemical and Biophysical Research Communications (2017): 400--406
Delineation of molecular pathways involved in cardiomyopathies caused by troponin T mutations
Authors: Gilda, Jennifer E and Lai, Xianyin and Witzmann, Frank A and Gomes, Aldrin V
Journal: Molecular &amp; Cellular Proteomics (2016): 1962--1981
Diclofenac induces proteasome and mitochondrial dysfunction in murine cardiomyocytes and hearts
Authors: Ghosh, Rajeshwary and Goswami, Sumanta K and Feitoza, Luis Felipe BB and Hammock, Bruce and Gomes, Aldrin V
Journal: International Journal of Cardiology (2016): 923--935
Advanced-glycation-end-product-induced formation of immunoproteasomes: involvement of RAGE and Jak2/STAT1
Authors: Grimm, Stefanie and Ott, Christiane and H&ouml;rlacher, Melanie and Weber, Daniela and H&ouml;hn, Annika and Grune, Tilman
Journal: Biochemical Journal (2012): 127--139


View all 36 references: Citation Explorer
Alveolar extracellular 20S proteasome in patients with acute respiratory distress syndrome
Authors: Sixt SU, Adamzik M, Spyrka D, Saul B, Hakenbeck J, Wohlschlaeger J, Costabel U, Kloss A, Giesebrecht J, Dahlmann B, Peters J.
Journal: Am J Respir Crit Care Med (2009): 1098
Quinone reductase acts as a redox switch of the 20S yeast proteasome
Authors: Sollner S, Schober M, Wagner A, Prem A, Lorkova L, Palfey BA, Groll M, Macheroux P.
Journal: EMBO Rep (2009): 65
Comparative expression analysis and characterization of 20S proteasomes in human intestinal tissues: The proteasome pattern as diagnostic tool for IBD patients
Authors: Visekruna A, Joeris T, Schmidt N, Lawrenz M, Ritz JP, Buhr HJ, Steinhoff U.
Journal: Inflamm Bowel Dis (2009): 526
Enzymatic properties of the 20S proteasome in wheat endosperm and its biochemical characteristics after seed imbibition
Authors: Shi C, Rui Q, Xu LL.
Journal: Plant Biol (Stuttg) (2009): 849
BCL-2 family regulation by the 20S proteasome inhibitor bortezomib
Authors: Fennell DA, Chacko A, Mutti L.
Journal: Oncogene (2008): 1189
Toward a full characterization of the human 20S proteasome subunits and their isoforms by a combination of proteomic approaches
Authors: Uttenweiler-Joseph S, Claverol S, Sylvius L, Bousquet-Dubouch MP, Burlet-Schiltz O, Monsarrat B.
Journal: Methods Mol Biol (2008): 111
Circulating 20S proteasome levels in patients with mixed connective tissue disease and systemic lupus erythematosus
Authors: Majetschak M, Perez M, Sorell LT, Lam J, Maldonado ME, Hoffman RW.
Journal: Clin Vaccine Immunol (2008): 1489
The 20S proteasome of Schistosoma mansoni: a proteomic analysis
Authors: Castro-Borges W, Cartwright J, Ashton PD, Braschi S, Guerra Sa R, Rodrigues V, Wilson RA, Curwen RS.
Journal: Proteomics (2007): 1065
Design and synthesis of a novel class of furan-based molecules as potential 20S proteasome inhibitors
Authors: Fu Y, Xu B, Zou X, Ma C, Yang X, Mou K, Fu G, Lu Y, Xu P.
Journal: Bioorg Med Chem Lett (2007): 1102
beta-Subunit appendages promote 20S proteasome assembly by overcoming an Ump1-dependent checkpoint
Authors: Li X, Kusmierczyk AR, Wong P, Emili A, Hochstrasser M.
Journal: Embo J (2007): 2339