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539162

Sigma-Aldrich

Proteasome Inhibitor II

The Proteasome Inhibitor II controls the biological activity of Proteasome. This small molecule/inhibitor is primarily used for Protease Inhibitors applications.

Synonym(s):

Proteasome Inhibitor II, (Benzyloxycarbonyl)-Leu-Leu-phenylalaninal, Z-LLF-CHO

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About This Item

Empirical Formula (Hill Notation):
C29H39N3O5
Molecular Weight:
509.64
UNSPSC Code:
12352200
NACRES:
NA.77

Quality Level

assay

≥95% (HPLC)

form

lyophilized solid

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze
desiccated

color

white

solubility

DMSO: 5 mg/mL

shipped in

ambient

storage temp.

−20°C

General description

A potent, cell-permeable, and reversible proteasome inhibitor. Inhibits the chymotrypsin-like activity of the pituitary multicatalytic proteinase complex (MPC; Ki = 460 nM). Does not inhibit the peptidyl-glutamyl peptide hydrolyzing activity of MPC even at concentrations of 200 µM. Also blocks the decay of IκB-α and IκB-β proteins in exponentially growing WEHI 231 cells.

Biochem/physiol Actions

Cell permeable: yes
Primary Target
MPC
Product does not compete with ATP.
Reversible: yes
Target Ki: 460 nM against the pituitary multicatalytic proteinase complex (MPC)

Warning

Toxicity: Standard Handling (A)

Sequence

Z-Leu-Leu-Phe-CHO

Reconstitution

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months.

Other Notes

Schauer, S.L., et al. 1998. J. Immunol. 160, 4398.
Orlowski, M., et al. 1997. Biochemistry 36, 13946.
Orlowski, M., et al. 1993. Biochemistry 32, 1563.

Legal Information

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

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


Certificates of Analysis (COA)

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