CALP3 TFA 

CALP3 TFA, a Ca²⁺-like peptide, is a potent Ca²⁺ channel blocker that activates EF hand motifs of Ca²⁺-binding proteins. CALP3 TFA can functionally mimic increased [Ca²⁺]_i by modulating the activity of Calmodulin (CaM), Ca²⁺ channels and pumps. CALP3 TFA has the potential in controlling apoptosis in diseases such as AIDS or neuronal loss due to ischemia^[1][2].

CALP3 TFA (50, 100, 150, 200 μM) inhibits glutamate caused a large sustained increase in [Ca²⁺]_i in a dose-dependent manner (IC₅₀=37.25 μM) in Fura-2-loaded neuronal cultures^[1].
CALP3 TFA (50, 100, 150, 200 μM) inhibits glutamate-induced cytotoxicity in a dose-dependent manner (IC₅₀=50.97 μM) in cultured rat neocortical neurons. CALP3 TFA causes dose-dependent inhibition of apoptosis (IC₅₀=33.41 μM)^[1].
CALP3 TFA (100 μM) inhibits apoptosis induced by HIV gp120 and SAg in Human T cells^[1].
CALP3 TFA (100 μM; 15 min pretreatment) reduces gossypol-induced necrosis and increases the fraction of live cells^[2].
Cyclic-CALP3 is synthesized starting from Fmoc-Asp(PEG-PS)-OAl. Cyclic CALP3 is unable to inhibit Ca21 influx, and this peptide served as a negative control. Cyclic CALP3 does not inhibit the effect of glutamate^[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

995.10

C₄₆H₆₉F₃N₁₀O₁₁

VKFGVGFK

Room temperature in continental US; may vary elsewhere.

Please store the product under the recommended conditions in the Certificate of Analysis.

• [1]. Manion MK, et al. A new type of Ca(2+) channel blocker that targets Ca(2+) sensors and prevents Ca(2+)-mediated apoptosis. FASEB J. 2000 Jul;14(10):1297-306.  [Content Brief]

  [2]. Ferdek PE, et al. BH3 mimetic-elicited Ca2+ signals in pancreatic acinar cells are dependent on Bax and can be reduced by Ca²⁺-like peptides. Cell Death Dis. 2017 Mar 2;8(3):e2640.  [Content Brief]