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Merck

474790

MG-132

≥98% (HPLC), proteasome inhibitor, solid

Synonym(s):

Z-Leu-Leu-Leu-al, Carbobenzoxy-L-leucyl-L-leucyl-L-leucinal, Z-LLL-CHO, Proteasome Inhibitor XI, MG-132

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About This Item

Empirical Formula (Hill Notation):
C26H41N3O5
CAS Number:
133407-82-6
Molecular Weight:
475.62
NACRES:
NA.77
UNSPSC Code:
12352200
MDL number:
MFCD00674886

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Product Name

MG-132, A cell-permeable, potent, reversible proteasome inhibitor (Ki = 4 nM).

form

solid

InChI

1S/C26H41N3O5/c1-17(2)12-21(15-30)27-24(31)22(13-18(3)4)28-25(32)23(14-19(5)6)29-26(33)34-16-20-10-8-7-9-11-20/h7-11,15,17-19,21-23H,12-14,16H2,1-6H3,(H,27,31)(H,28,32)(H,29,33)/t21-,22-,23-/m0/s1

SMILES string

[H]C(=O)[C@H](CC(C)C)NC(=O)[C@H](CC(C)C)NC(=O)[C@H](CC(C)C)NC(=O)OCc1ccccc1

InChI key

TZYWCYJVHRLUCT-VABKMULXSA-N

assay

≥98% (HPLC)

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze

color

white

solubility

DMSO: 20 mg/mL
ethanol: 20 mg/mL

shipped in

ambient

storage temp.

−20°C

Quality Level

100

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1 of 4

This Item
474791474787474780
MG-132 A cell-permeable, potent, reversible proteasome inhibitor (Ki = 4 nM).

Sigma-Aldrich

474790

MG-132

MG-132 InSolution, ≥98%, 10 mM, reversible proteasome inhibitor

Sigma-Aldrich

474791

MG-132

MG-132, ≥95% by HPLC Potent, reversible, and cell-permeable proteasome inhibitor (Ki = 4 nM).

Sigma-Aldrich

474787

MG-132, ≥95% by HPLC

MG-115 Potent reversible proteasome inhibitor (Ki = 21 nM and 35 nM for 20S and 26S proteasome, respectively).

Sigma-Aldrich

474780

MG-115

assay

≥98% (HPLC)

assay

≥98% (HPLC)

assay

≥95% (HPLC)

assay

≥90% (HPLC)

form

solid

form

liquid

form

powder

form

solid

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

100

manufacturer/tradename

Calbiochem®

manufacturer/tradename

Calbiochem®

manufacturer/tradename

Calbiochem®

manufacturer/tradename

Calbiochem®

storage temp.

−20°C

storage temp.

−20°C

storage temp.

−20°C

storage temp.

−20°C

storage condition

OK to freeze

storage condition

OK to freeze, protect from light

storage condition

OK to freeze, protect from light

storage condition

OK to freeze, protect from light

Biochem/physiol Actions

Cell permeable: yes
Primary Target
proteasome
Product does not compete with ATP.
Reversible: yes
Target IC50: 3 µM against NF-κB activation
Target Ki: 4 nM against proteasome

Disclaimer

Toxicity: Standard Handling (A)

General description

A potent, reversible, and cell-permeable proteasome inhibitor (Ki = 4 nM). Reduces the degradation of ubiquitin-conjugated proteins in mammalian cells and permeable strains of yeast by the 26S complex without affecting its ATPase or isopeptidase activities. Activates c-Jun N-terminal kinase (JNK1), which initiates apoptosis. Inhibits NF-κB activation (IC50 = 3 µM). Also reported to increases the survival rate of mesenchymal stem cells following their transplantation. Prevents β-secretase cleavage. A 10 mM (1 mg/210 µl) solution of MG-132 (Cat. No. 474791) in DMSO is also available. This material is ≥98% pure by HPLC. A material with ≥95% purity by HPLC (Cat. No. 474787) is also available.

Other Notes

Li, Z.W. et al. 2011. Sheng Li Xue Bao. 63, 525.
Steinhilb, M.L., et al. 2001. J. Biol. Chem.276, 4476.
Meriin, A.B., et al. 1998. J. Biol. Chem. 273, 6373.
Adams, J., and Stein, R. 1996. Ann. Rep. Med. Chem.31, 279.
Klafki, H.W., et al. 1996. J. Biol. Chem.271, 2865.
Lee, D.H., and Goldberg, A.L., 1996. J. Biol. Chem.271, 27280.
Wiertz, E.J., et al. 1996. Cell84, 769.
Jensen, T.J., et al. 1995. Cell 83, 129.
Read, M.A., et al. 1995. Immunity2, 493.
Rock, K.L., et al. 1994. Cell 78, 761.
Z-Leu-Leu-Leu-CHO

Preparation Note

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 1 month at -20°C.

Legal Information

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

Storage Class

11 - Combustible Solids

wgk

WGK 3

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’.

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Neta Agmon et al.
Nucleic acids research, 48(1), 486-499 (2019-11-21)
Cross-species pathway transplantation enables insight into a biological process not possible through traditional approaches. We replaced the enzymes catalyzing the entire Saccharomyces cerevisiae adenine de novo biosynthesis pathway with the human pathway. While the 'humanized' yeast grew in the absence
Monika Chauhan et al.
Cell death & disease, 11(6), 441-441 (2020-06-10)
It is critical for the neuronal cell cycle to remain suppressed in terminally differentiated neurons as its activation results in aberrant cell cycle re-entry that causes neuronal apoptosis (CRNA), which has been observed in several neurodegenerative disorders like Alzheimer's disease
Annika Nerstedt et al.
Journal of lipid research, 61(2), 178-191 (2019-12-21)
Nonalcoholic fatty liver disease (NAFLD) and nonalcoholic steatohepatitis (NASH) are emerging as leading causes of liver disease worldwide and have been recognized as one of the major unmet medical needs of the 21st century. Our recent translational studies in mouse
Virginia De Cesare et al.
Proceedings of the National Academy of Sciences of the United States of America, 118(4) (2021-01-23)
The reversibility of ubiquitination by the action of deubiquitinating enzymes (DUBs) serves as an important regulatory layer within the ubiquitin system. Approximately 100 DUBs are encoded by the human genome, and many have been implicated with pathologies, including neurodegeneration and
Sandhya Manohar et al.
Molecular & cellular proteomics : MCP, 19(9), 1450-1467 (2020-06-20)
Insulin receptor substrate 2 (IRS2) is an essential adaptor that mediates signaling downstream of the insulin receptor and other receptor tyrosine kinases. Transduction through IRS2-dependent pathways is important for coordinating metabolic homeostasis, and dysregulation of IRS2 causes systemic insulin signaling
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