Calpain Inhibitor I, ALLN

- Overview
  - Please contact us at for specific academic pricing.
    
    Background
    
    Calpain Inhibitor I is an inhibitor of calpain I, calpain II, cathepsin B and cathepsin L with Ki values of 190 nM, 220 nM, 150 nM and 500 pM, respectively.
    Calpain inhibitor I combined with Ad/gTRAIL induced cell death dramatically in DLD1-TRAIL/R cells, while calpain alone had only minimal killing effects. The combination of calpain inhibitor I and TRAIL protein resulted in cleavage of both caspase-8 and caspase-3 to active subunits [1].
    Calpain inhibitor I treated male Sprangue-Dawley rats have seen reductions of P-selectin/ICAM-1 expression, neutrophil infiltration, lipid peroxidation, nitrotyrosine, PAR formation as well as IκB-α degradation [2].
    
    [1] Zhu H1, Zhang L, Huang X, Davis JJ, Jacob DA, Teraishi F, Chiao P, Fang B. Overcoming acquired resistance to TRAIL by chemotherapeutic agents and calpain inhibitor I through distinct mechanisms. Mol Ther. 2004 May;9(5):666-73.
    [2] Marzocco S1, Di Paola R, Autore G, Mazzon E, Pinto A, Caputi AP, Thiemermann C, Cuzzocrea S. Calpain inhibitor I reduces intestinal ischemia-reperfusion injury in the rat. Shock. 2004 Jan;21(1):38-44.
- Properties
  - Alternative Name
    
    Ac-LLnL-CHO, MG-101, MG101,N-Acetyl-L-leucyl-L-leucyl-L-norleucinal, N-Acetyl-Leu-Leu-Nle-al,Calpain Inhibitor I; 2-acetamido-4-methyl-N-[4-methyl-1-oxo-1-(1-oxohexan-2-ylamino)pentan-2-yl]pentanamide
    
    CAS Number
    
    110044-82-1
    
    Molecular Formula
    
    C20H37N3O4
    
    Molecular Weight
    
    383.54
    
    Appearance
    
    A solid
    
    Purity
    
    98.00%
    
    Solubility
    
    insoluble in H2O; ≥14.03 mg/mL in EtOH; ≥19.1 mg/mL in DMSO
    
    Storage
    
    Store at -20°C
    
    * For Research Use Only
- Reference
  - 1. Vimala Bondada, Jozsef Gal, et al. "The C2 domain of calpain 5 contributes to enzyme activation and membrane localization." Biochim Biophys Acta Mol Cell Res. 2021 Jun;1868(7):119019. PMID:33811937
    2. Ednie AR, Parrish AR, et al. "Reduced hybrid/complex N-glycosylation disrupts cardiac electrical signaling and calcium handling in a model of dilated cardiomyopathy." J Mol Cell Cardiol. 2019 Jul;132:13-23. PMID:31071333
    3. YU HUANG. "STUDY OF REGULATED CELL DEATH IN TWO SYSTEMS: PD-1 IN NATURAL KILLER CELLS AND RIP3 IN NEURONS."The University of Texas. 2018.
    4. KoraMagazi A, Wang D, et al. "Rhein triggers apoptosis via induction of endoplasmic reticulum stress, caspase-4 and intracellular calcium inprimary human hepatic HL-7702 cells." Biochem Biophys Res Commun. 2016 Apr 22;473(1):230-236. PMID:27003256