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208743

Sigma-Aldrich

Calpain Inhibitor XI

The Calpain Inhibitor XI, also referenced under CAS 145731-49-3, controls the biological activity of Calpain. This small molecule/inhibitor is primarily used for Protease Inhibitors applications.

Synonym(s):

Calpain Inhibitor XI, Z-L-Abu-CONH(CH₂)₃-morpholine

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About This Item

Empirical Formula (Hill Notation):
C26H40N4O6
CAS Number:
Molecular Weight:
504.62
UNSPSC Code:
12352200
NACRES:
NA.77

Quality Level

Assay

≥95% (HPLC)

form

solid

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze
desiccated (hygroscopic)

color

white to off-white

solubility

DMSO: 5 mg/mL

shipped in

ambient

storage temp.

2-8°C

General description

A cell-permeable dipeptidyl α-ketoamide that acts as a potent, highly selective, reversible, and active site inhibitor of calpain-1 and -2 (Ki = 140 nM and 41 nM, respectively). Weakly inhibits cathepsin B (Ki = 6.9 µM). Reported to have a neuroprotective role in the central nervous system following focal ischemia. Also protects against virus-induced apoptotic myocardial injury in mice.
A cell-permeable dipeptidyl a-ketoamide that acts as a potent, highly selective, reversible, active site inhibitor of calpain-1 (Ki = 140 nM) and calpain-2 (Ki = 41 nM). Weakly inhibits cathepsin B (Ki = 6.9 µM). Shown to inhibit calpain-m-mediated degradation of neurofilament protein (NFP) (IC50 = 600 nM). Also shown to exhibit neuroprotective effects in the central nervous system following focal ischemia. Reported to protect against reovirus-induced myocarditis in mice.

Biochem/physiol Actions

Cell permeable: yes
Primary Target
calpain 1, calpain 2
Product does not compete with ATP.
Reversible: yes
Target Ki: 140 nM and 41 nM, against calpain-1 and -2, respectively

Packaging

Packaged under inert gas

Warning

Toxicity: Standard Handling (A)

Sequence

Z-Leu-Abu-CONH(CH₂)₃-morpholine (Abu = α-aminobutyric acid)

Physical form

Supplied as a trifluoroacetate salt.

Reconstitution

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

Other Notes

Blomgren, K., et al. 2001. J. Biol. Chem.276, 10191.
DeBiasi, R.L., et al. 2001. J. Virol.75, 351.
Saatman, K.E., et al. 2000. J. Cereb. Blood Flow Metab.20, 66.
Stelmasiak, Z., et al. 2000. Med. Sci. Monit.6, 426.
Blomgren, K., et al. 1999. J. Biol. Chem.274, 14046.
James, T., et al. 1998. J. Neurosci. Res.51, 218.
Li, Z., et al. 1996. J. Med. Chem.39, 4089.
Saatman, K.E, et al. 1996. Proc. Natl. Acad. Sci. USA93, 3428.
Bartus, R.T., et al. 1995. Neurol. Res.17, 249.
Bartus, R.T., et al. 1994. Stroke25, 2265.

Legal Information

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

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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