Bioactivity | Calmidazolium chloride (R 24571) is a calmodulin (CaMK) antagonist, antagonizing CaM-dependent phosphodiesterase and calmodulin-induced activation of erythrocyte Ca2+-transporting ATPase with IC50s of 0.15 and 0.35 μM, respectively[1]. Also in anti-cancer research[2]. Calmidazolium binds to CaMK with a Kd of 3 nM. |
Target | Kd: 3 nM (Calmodulin) |
Invitro | Calmidazolium chloride is widely used as a calmodulin (CaM) antagonist, but is also known to induce apoptosis in certain cancer cell lines. Calmidazolium chloride (3, 5, 7, 10 μM, 30 minutes-24 hours) inhibits growth of mouse F9 ECCs[2]. Cell Viability Assay[2] Cell Line: |
Name | Calmidazolium chloride |
CAS | 57265-65-3 |
Formula | C31H23Cl7N2O |
Molar Mass | 687.70 |
Appearance | Solid |
Transport | Room temperature in continental US; may vary elsewhere. |
Storage | -20°C, sealed storage, away from moisture *In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture) |
Reference | [1]. Gietzen K, et al. Comparison of the calmodulin antagonists compound 48/80 and calmidazolium. Biochem J. 1983 Dec 15;216(3):611-6. [2]. Lee J, et al. Calmidazolium chloride inhibits growth of murine embryonal carcinoma cells, a model of cancer stem-like cells. Toxicol In Vitro. 2016 Sep;35:86-92. [3]. Budu A, et al. Calmidazolium evokes high calcium fluctuations in Plasmodium falciparum. Cell Signal. 2016 Mar;28(3):125-135. |