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400012

Sigma-Aldrich

Caspase-1 Inhibitor II

The Caspase-1 Inhibitor II, also referenced under CAS 178603-78-6, controls the biological activity of Caspase-1. This small molecule/inhibitor is primarily used for Cancer applications.

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Synonym(s):
Caspase-1 Inhibitor II, IL-1β Converting Enzyme (ICE) Inhibitor II, Ac-YVAD-CMK
Empirical Formula (Hill Notation):
C24H33ClN4O8
CAS Number:
178603-78-6
Molecular Weight:
540.99
MDL number:
MFCD00237124
UNSPSC Code:
12352200
NACRES:
NA.54

Quality Level

100

Assay

≥95% (HPLC)

form

solid

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze
desiccated

color

white

solubility

DMSO: 5 mg/mL

shipped in

ambient

storage temp.

−20°C

InChI

1S/C24H33ClN4O8/c1-12(2)21(24(37)26-13(3)22(35)28-17(10-20(33)34)19(32)11-25)29-23(36)18(27-14(4)30)9-15-5-7-16(31)8-6-15/h5-8,12-13,17-18,21,31H,9-11H2,1-4H3,(H,26,37)(H,27,30)(H,28,35)(H,29,36)(H,33,34)/t13-,17-,18-,21-/m0/s1

InChI key

UOUBHJRCKHLGFB-DGJUNBOTSA-N

General description

A cell-permeable and irreversible inhibitor of caspase-1 (Ki = 760 pM), caspase-4, and caspase-5. Inhibits Fas-mediated apoptosis and acidic sphingomyelinase activation.
Interleukin-1β converting enzyme (ICE) is a cysteine protease that cleaves the IL-1β precursor to mature IL-1β. Caspase-1 inhibitor II is a cell-permeable, irreversible inhibitor of Caspase-1, Caspase-4, and Caspase-5. Inhibits CPP32/Apopain at a much higher concentration. Inhibits Fas-mediated apoptosis and acidic sphingomyelinase activation.

Biochem/physiol Actions

Cell permeable: yes
Primary Target
caspase-1
Product does not compete with ATP.
Reversible: no
Target Ki: 760 pM against caspase-1

Warning

Toxicity: Standard Handling (A)

Sequence

Ac-Tyr-Val-Ala-Asp-CMK

Reconstitution

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

Other Notes

Brenner, B., et al. 1998. Cell Death Differ. 5, 29.
Garcia-Calvo, M., et al. 1998. J. Biol. Chem. 273, 32608.
Hilbi, H., et al. 1998. J. Biol. Chem. 273, 32895.
Thornberry, N.A., and Lazebnik, Y. 1998. Science 281, 1312.
Schlegel, J., et al. 1996. J. Biol. Chem.271, 1841.
Enari, M., et al. 1995. Nature375, 78.
Walker, N.P.C., et al. 1994. Cell78, 343.
Thornberry, N., et al. 1992. Nature356, 768.

Legal Information

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

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’.

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