11086090001

Calpain Inhibitor I

N-Acetyl-Leu-Leu-norleucinal, synthetic

• Synonyme(s) : Calpain Inhibitor I, n-acetyl-leu-leu-norleucinal, ALLN, Ac-LLnL-CHO, MG-101, N-Acetyl-L-leucyl-L-leucyl-L-norleucinal, N-Acetyl-Leu-Leu-Norleu-al
• Formule empirique (notation de Hill): C₂₀H₃₇N₃O₄
• Numéro CAS: 110044-82-1
• Poids moléculaire : 383.53
• Numéro Beilstein : 7656053
• Numéro MDL: MFCD00065505
• Code UNSPSC : 12352204
• ID de substance PubChem : 329749147

Propriétés

• Niveau de qualité: 100
• Pureté: 98% (chromatographically homogeneous)
• Forme: powder
• Poids mol.: M_r = 383.5
• Conditionnement: pkg of 25 mg
• Fabricant/nom de marque: Roche
• Pf: 182 °C
• Solubilité: DMF: 10 mg/mL; ethanol: 10 mg/mL; methanol: 10 mg/mL
• Température de stockage: 2-8°C
• Chaîne SMILES: [H]C(=O)[C@H](CCCC)NC(=O)[C@H](CC(C)C)NC(=O)[C@H](CC(C)C)NC(C)=O
• InChI: 1S/C20H37N3O4/c1-7-8-9-16(12-24)22-19(26)18(11-14(4)5)23-20(27)17(10-13(2)3)21-15(6)25/h12-14,16-18H,7-11H2,1-6H3,(H,21,25)(H,22,26)(H,23,27)/t16-,17-,18-/m0/s1
• Clé InChI: FMYKJLXRRQTBOR-BZSNNMDCSA-N

Description

Description générale

Calpain Inhibitor I is a strong, competitive inhibitor of the Ca²⁺-dependent neutral cysteine proteases calpain I and calpain II.

Spécificité

Calpain Inhibitor I is a strong, competitive inhibitor of the Ca²⁺-dependent neutral cysteine proteases calpain I (requiring 2–75 μM Ca²⁺ for activation) and calpain II (requiring 200–800 μM) with a K_i-value between 0.12 μM and 0.23 μM. Calpain II is inhibited to a lesser extent than calpain I. Calpain Inhibitor I is also a strong inhibitor of papain and cathepsin B and L. It shows only weak inhibition of cathepsin H and α-chymotrypsin and does not inhibit trypsin. ID₅₀ for 0.02 U platelet calpain is 0.05 μM.

Application

Calpain inhibitor I inhibits calpain, which activates myosin light chain kinase and protein kinase C by partial proteolysis. The inhibitor should be membrane permeable due to low molecular weight and lack of charged residues.
Calpain Inhibitor I is used for western blotting methods.

Qualité

Purity: 98% (from C); chromatographically homogeneous

Variante de formule

C₂₀H₃₇N₃O₄

Notes préparatoires

Working concentration: 0.1 - 10 μM
The suggested starting concentration is 17 μg/ml. This is the concentration at which half maximal inhibition of calpain I is observed.
Working solution: Recommended solvent is DMF, ethanol, or methanol up to 10 mg/ml.
Storage conditions (working solution): -15 to -25 °C
Solutions in DMF, methanol, ethanol are stable for 4 weeks at -15 to -25 °C.

Reconstitution

Soluble in DMF, ethanol, or methanol to 10 mg/ml. For a stock solution, Roche recommends dissolving 1 mg of the inhibitor in 100 μl DMF, methanol, or ethanol. Before use, dilute with water or phosphate buffer (0.1 M, pH 7.5) to desired concentration. Solutions in DMF, ethanol, or methanol are stable for 2 to 3 days at 2 to 8 °C, and approximately 4 weeks at -15 to -25 °C. For best results, prepare solutions fresh before use.

Autres remarques

For life science research only. Not for use in diagnostic procedures.

Informations sur la sécurité

• Code de la classe de stockage: 11 - Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 2
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable