Skip to Content
Merck
All Photos(1)

Key Documents

324890

Sigma-Aldrich

E-64 Protease Inhibitor

The E-64 Protease Inhibitor, also referenced under CAS 66701-25-5, controls the biological activity of E-64 Protease. This small molecule/inhibitor is primarily used for Protease Inhibitors applications.

Synonym(s):

E-64 Protease Inhibitor, (2 R,3 R)-3-(( S)-1-(4-Guanidinobutylamino)-4-methyl-1-oxopentan-2-ylcarbamoyl)oxirane-2-carboxylic acid, trans-Epoxysuccinyl-L-​leucylamido(4-​guanidino)​butane, L- trans-​3-​Carboxyoxira, (2R,3R)-3-((S)-1-(4-Guanidinobutylamino)-4-methyl-1-oxopentan-2-ylcarbamoyl)oxirane-2-carboxylic acid, trans-Epoxysuccinyl-L-​leucylamido(4-​guanidino)​butane, L-trans-​3-​Carboxyoxiran-R

Sign Into View Organizational & Contract Pricing


About This Item

Empirical Formula (Hill Notation):
C15H27N5O5
CAS Number:
Molecular Weight:
357.41
MDL number:
UNSPSC Code:
12352200
NACRES:
NA.77

Quality Level

Assay

≥98% (HPLC)

form

solid

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze

color

white

solubility

water: 20 mg/mL
DMSO: 25 mg/mL

shipped in

ambient

storage temp.

−20°C

InChI

1S/C15H27N5O5/c1-8(2)7-9(20-13(22)10-11(25-10)14(23)24)12(21)18-5-3-4-6-19-15(16)17/h8-11H,3-7H2,1-2H3,(H,18,21)(H,20,22)(H,23,24)(H4,16,17,19)/t9-,10+,11+/m0/s1

InChI key

LTLYEAJONXGNFG-HBNTYKKESA-N

General description

Irreversible inhibitor of cysteine proteases. Has no action on cysteine residues in other proteins. Inhibits activation-induced programmed cell death and restores defective immune responses in HIV+ donors. Specific active site titrant.
Irreversible inhibitor of cysteine proteases. Interacts with the Sn subsites of proteases. Has no action on cysteine residues in other proteins. Inhibits activation-induced programmed cell death and restores defective immune responses in HIV+ donors. Specific active site titrant.

Biochem/physiol Actions

Cell permeable: no
Primary Target
cysteine proteases
Product does not compete with ATP.
Reversible: no

Warning

Toxicity: Standard Handling (A)

Reconstitution

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 4 months at -20°C.

Other Notes

Matsumoto, K., et al. 1999. Biopolymers51, 99.
Sarin, A., et al. 1994. J. Immunol.153, 862.
Sarin, A., et al. 1993. J. Exp. Med. 178, 1693.
Barrett, A.J. 1982. Biochem. J.201, 189.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Michael Anthony Jensen et al.
Biochemistry, 63(1), 9-18 (2023-11-28)
Here we report preliminary data demonstrating that some patients with myalgic encephalomyelitis/chronic fatiguesyndrome (ME/CFS) may have catalytic autoantibodies that cause the breakdown of myelin basic protein (MBP). We propose that these MBP-degradative antibodies are important to the pathophysiology of ME/CFS
Judith Bockstiegel et al.
Cell communication and signaling : CCS, 21(1), 335-335 (2023-11-24)
The purinergic receptor P2X7 plays a crucial role in infection, inflammation, and cell death. It is thought that P2X7 receptor stimulation triggers processing and release of the pro-inflammatory cytokine interleukin (IL)-1β by activation of the NLRP3 inflammasome; however, the underlying
Dana Bohan et al.
PLoS pathogens, 17(11), e1009743-e1009743 (2021-11-20)
Phosphatidylserine (PS) receptors enhance infection of many enveloped viruses through virion-associated PS binding that is termed apoptotic mimicry. Here we show that this broadly shared uptake mechanism is utilized by SARS-CoV-2 in cells that express low surface levels of ACE2.
Ashley B Reers et al.
Epigenetics & chromatin, 16(1), 25-25 (2023-06-16)
Gene expression in malaria parasites is subject to various layers of regulation, including histone post-translational modifications (PTMs). Gene regulatory mechanisms have been extensively studied during the main developmental stages of Plasmodium parasites inside erythrocytes, from the ring stage following invasion
Thomas Macleod et al.
Cell reports, 33(11), 108515-108515 (2020-12-17)
Epithelial tissues represent vital interfaces between organisms and their environment. As they are constantly exposed to harmful pathogens, innocuous commensals, and environmental microbes, it is essential they sense and elicit appropriate responses toward these different types of microbes. Here, we

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service