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Key Documents

C8999

Sigma-Aldrich

Calpeptin

≥98% (HPLC)

Synonym(s):

N-Benzyloxycarbonyl-L-leucylnorieucinal, Z-Leu-Nle-CHO

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About This Item

Empirical Formula (Hill Notation):
C20H30N2O4
CAS Number:
Molecular Weight:
362.46
MDL number:
UNSPSC Code:
12352200
PubChem Substance ID:
NACRES:
NA.77

Quality Level

assay

≥98% (HPLC)

form

powder

color

white to beige

solubility

DMSO: 15 mg/mL, clear

shipped in

wet ice

storage temp.

−20°C

SMILES string

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

InChI

1S/C20H30N2O4/c1-4-5-11-17(13-23)21-19(24)18(12-15(2)3)22-20(25)26-14-16-9-7-6-8-10-16/h6-10,13,15,17-18H,4-5,11-12,14H2,1-3H3,(H,21,24)(H,22,25)/t17-,18-/m0/s1

InChI key

PGGUOGKHUUUWAF-ROUUACIJSA-N

General description

Calpeptin (Z-Leu-nLeu-H) is a cell permeable, peptide aldehyde inhibitor. It is more sensitive to calpain I compared to other inhibitors, such as Z-Leu-Met-H and leupeptin. Calpeptin stimulates neurite elongation in differentiating pheochromocytoma (PC12) cells. Calpeptin decreases microgliosis, astrogliosis, axonal damage and neuron and oligodendrocyte death in experimental autoimmune encephalomyelitis (EAE) spinal cord. Therefore, it can be considered as a potent therapeutic for treating EAE and multiple sclerosis (MS).

Application

Calpeptin has been used as a calpain inhibitor.

Biochem/physiol Actions

Calpeptin is a calpain inhibitor and rho kinase activator.
Calpeptin is a rho kinase activator and an inhibitor of calpains, a family of calcium-dependent cysteine proteases involved in apoptosis, long-term potentiation in neurons, and cell cycle progression.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


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Synthesis of a new cell penetrating calpain inhibitor (calpeptin).
Tsujinaka T, et al.
Biochemical and Biophysical Research Communications, 153(3), 1201-1208 (1988)
Hector N Aguilar et al.
PloS one, 6(6), e20903-e20903 (2011-06-23)
The 'phosphate-binding tag' (phos-tag) reagent enables separation of phospho-proteins during SDS-PAGE by impeding migration proportional to their phosphorylation stoichiometry. Western blotting can then be used to detect and quantify the bands corresponding to the phospho-states of a target protein. We
Inhibition of histone deacetylase 3 (HDAC3) mediates ischemic preconditioning and protects cortical neurons against ischemia in rats.
Yang X, et al.
Frontiers in Molecular Neuroscience, 9, 131-131 (2016)
Calpeptin attenuated inflammation, cell death, and axonal damage in animal model of multiple sclerosis.
Guyton M K, et al.
Journal of Neuroscience Research, 88(11), 2398-2408 (2010)
Calpeptin, a calpain inhibitor, promotes neurite elongation in differentiating PC12 cells.
Pinter M, et al.
Neuroscience Letters, 170(1), 91-93 (1994)

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