2. Signaling Pathways
  3. Membrane Transporter/Ion Channel
  4. Calmodulin

Calmodulin

Calmodulin; CaM; Calcium-Modulated Protein

Calmodulin is the highly conserved, calcium-sensitive protein, that acts as the calcium ion sensor in cells, Ca2+-dependently binds to target proteins, and converts Ca2+ concentrations into cellular signals. Calmodulin has four different Ca2+ binding sites named EF-hand for the sensing of Ca2+ signaling with different amplitude, duration, and location. Calmodulin dysfunction could lead to myocardial contractile problems, neuronal damage, or tumor angiogenesis dysregulation, which may cause cardiovascular diseases, neurological diseases, or cancer[1][2][3].

Calmodulin Isoform Specific Products:

Calmodulin Isoform Comparison
Cat. No. Product Name Effect Purity Chemical Structure
  • HY-100912
    W-7 hydrochloride
    		Antagonist 99.96%
    W-7 hydrochloride is a selective calmodulin antagonist. W-7 hydrochloride inhibits the Ca2+-calmodulin-dependent phosphodiesterase and myosin light chain kinase with IC50 values of 28 μM and 51 μM, respectively. W-7 hydrochloride induces apoptosis and has antitumor and vascular relaxing activity. W-7 hydrochloride is a blocker of Kv4.3 and can be used for research of arrhythmias.
    W-7 hydrochloride
  • HY-103319
    Calmidazolium chloride
    		Antagonist 99.94%
    Calmidazolium chloride (R 24571) is a calmodulin antagonist, antagonizing CaM-dependent phosphodiesterase and calmodulin-induced activation of erythrocyte Ca2+-transporting ATPase with IC50s of 0.15 and 0.35 μM, respectively. Also in anti-cancer research. Calmidazolium binds to calmodulin with a Kd of 3 nM.
    Calmidazolium chloride
  • HY-D0987
    Stains-All
    		99.91%
    Stains-All, a cationic carbocyanine dye, is a convenient probe to study the structural features of the individual calcium-binding sites of calmodulin (CaM) and related calcium-binding proteins (CaBP).
    Stains-All
  • HY-162009
    CaMKK2-IN-1
    		98.32%
    CaMKK2-IN-1 is a selective, ligand-efficient inhibitor of CaMKK2, with IC50 of 7 nM.
    CaMKK2-IN-1
  • HY-P1076A
    CALP2 TFA
    		Antagonist 98.31%
    CALP2 TFA is a calmodulin (CaM) antagonist (Kd of 7.9 µM) with high affinity for binding to the CaM EF-hand/Ca2+-binding site. CALP2 TFA inhibits CaM-dependent phosphodiesterase activity and increases intracellular Ca2+ concentrations. CALP2 TFA potently inhibits of adhesion and degranulation. CALP2 TFA is also a strong activator of alveolar macrophages.
    CALP2 TFA
  • HY-117232
    KS 501
    		Inhibitor
    KS 501 is a potent and selective calmodulin inhibitor. KS 501 inhibits the activation of calmodulin kinase I and II, but has less effect against cyclic adenosine 3’,5’-monophosphate (cyclic AMP)-sensitive kinase. KS 501 inhibits the enzyme through interfering with calmodulin activation rather than through a direct effect on the enzyme. KS 501 can be used for the study of leukemia.
    KS 501
  • HY-P1077A
    CALP1 TFA
    		Agonist 98.15%
    CALP1 TFA is a calmodulin (CaM) agonist (Kd of 88 µM) with binding to the CaM EF-hand/Ca2+-binding site. CALP1 TFA blocks calcium influx and apoptosis (IC50 of 44.78 µM) through inhibition of calcium channel opening. CALP1 TFA blocks glutamate receptor channels and blocks a store-operated nonselective cation channel. CALP1 TFA activates CaM-dependent phosphodiesterase activity.
    CALP1 TFA
  • HY-100911
    W-5 hydrochloride
    		Antagonist 99.93%
    W-5 hydrochloride is a calmodulin antagonist. W-5 hydrochloride inhibits phosphodiesterase activation with an IC50 value of 240 µM. W-5 hydrochloride can be used as a negative control for W-7 (HY-100912).
    W-5 hydrochloride
  • HY-105118A
    Zaldaride maleate
    		Antagonist 99.7%
    Zaldaride maleate (CGS-9343B) is a potent, orally active and selective inhibitor of calmodulin. Zaldaride maleate inhibits CaM (calmodulin)-stimulated cAMP phosphodiesterase activity, with an IC50 of 3.3 nM. Zaldaride maleate prevents estrogen-induced transcription activation by ER, reversibly blocks voltage-activated Na+, Ca2+ and K+ currents in PC12 cells and inhibits nAChR.
    Zaldaride maleate
  • HY-130368
    W-7
    		Antagonist 99.35%
    W-7 is a selective calmodulin antagonist. W-7 inhibits the Ca2+-calmodulin-dependent phosphodiesterase and myosin light chain kinase with IC50 values of 28 μM and 51 μM, respectively. W-7 induces apoptosis and has antitumor and vascular relaxing activity. W-7 is a blocker of Kv4.3 and can be used for research of arrhythmias.
    W-7
  • HY-168905
    SGC-CAMKK2-1
    		Inhibitor 98.80%
    SGC-CAMKK2-1, a chemical probe, is the selective, inhibitor for calcium/calmodulin-dependent protein kinase kinase 2 (CAMKK2) with an IC50 of 30 nM. SGC-CAMKK2-1 inhibits AMPK phosphorylation in cell C4-2 with an IC50 of 1.6 μM.
    SGC-CAMKK2-1
  • HY-A0236A
    Aprindine hydrochloride
    		Inhibitor 98.96%
    Aprindine hydrochloride is an Ib-class anti-arrhythmic agent. Aprindine hydrochloride mainly exerts its effect by blocking sodium channels (INa), thereby reducing the excitability and conduction velocity of cardiac muscle cells. Aprindine hydrochloride significantly inhibits delayed potassium currents, which helps to prolong the atrial effective refractory period (AERP) and inhibit the occurrence of atrial fibrillation. Aprindine hydrochloride can also regulate intracellular calcium ion concentration by inhibiting Na+/Ca2+ exchange current (INCX), thereby further stabilizing cardiac electrical activity. Aprindine hydrochloride can be used for the study of atrial fibrillation (AF) and ventricular arrhythmias.
    Aprindine hydrochloride
  • HY-133782
    Fluphenazine-N-2-chloroethane hydrochloride
    		Antagonist
    Fluphenazine-N-2-chloroethane (SKF-7171A) hydrochloride is a potent irreversible calmodulin antagonist.
    Fluphenazine-N-2-chloroethane hydrochloride
  • HY-100913
    W-7 isomer hydrochloride
    		Antagonist 99.65%
    W-7 isomer hydrochloride is an isomer of W-7 hydrochloride (HY-100912). W-7 hydrochloride is a selective calmodulin antagonist.
    W-7 isomer hydrochloride
  • HY-122579
    IGS-1.76
    		Inhibitor 98.57%
    IGS-1.76 efficiently inhibits the human NCS-1/Ric8a complex. IGS-1.76 shows a significantly increased affinity for hNCS-1 and is able to modulate the hNCS-1/Ric8a interaction efficiently.
    IGS-1.76
  • HY-N7503
    Psoralenoside
    		Inhibitor 99.84%
    Psoralenoside is a benzofuran glycoside from Psoralea corylifolia. Psoralenoside exhibits high binding affinities against histaminergic H1, calmodulin, and voltage-gated L-type calcium channels (E-value≥-6.5 Kcal/mol). Psoralenoside shows estrogen-like activity, osteoblastic proliferation accelerating activity, antitumor effects and antibacterial activity.
    Psoralenoside
  • HY-16918A
    Heptamidine dimethanesulfonate
    		Inhibitor 99.82%
    Heptamidine dimethanesulfonate (SBi4211 dimethanesulfonate) is a potent Pentamidine-related inhibitor of the calcium-binding protein S100B (Kd=6.9 μM), selectively kills melanoma cells with S100B over those without S100B. Heptamidine is a useful tool for the investigation of Myotonic dystrophy (DM).
    Heptamidine dimethanesulfonate
  • HY-P1805
    Calmodulin Binding Peptide 1
    		Ligand 98.68%
    Calmodulin Binding Peptide 1 is a high-affinity (pM) CaM-binding peptide derived from smooth muscle myosin light chain kinase (MLCK peptide). The interface of the complex formed by Calmodulin Binding Peptide 1 and Ca2+-CaM can be specifically bound by small-molecule inhibitors, serving as a key target for selective regulation of smooth muscle contraction and development of anti-CaM drugs.
    Calmodulin Binding Peptide 1
  • HY-A0236
    Aprindine
    		Inhibitor 98.43%
    Aprindine is an Ib-class anti-arrhythmic agent. Aprindine mainly exerts its effect by blocking sodium channels (INa), thereby reducing the excitability and conduction velocity of cardiac muscle cells. Aprindine significantly inhibits delayed potassium currents, which helps to prolong the atrial effective refractory period (AERP) and inhibit the occurrence of atrial fibrillation. Aprindine can also regulate intracellular calcium ion concentration by inhibiting Na+/Ca2+ exchange current (INCX), thereby further stabilizing cardiac electrical activity. Aprindine can be used for the study of atrial fibrillation (AF) and ventricular arrhythmias.
    Aprindine
  • HY-P1077
    CALP1
    		Agonist 98.44%
    CALP1 is a calmodulin (CaM) agonist (Kd of 88 µM) with binding to the CaM EF-hand/Ca2+-binding site. CALP1 blocks calcium influx and apoptosis (IC50 of 44.78 µM) through inhibition of calcium channel opening. CALP1 blocks glutamate receptor channels and blocks a store-operated nonselective cation channel. CALP1 activates CaM-dependent phosphodiesterase activity.
    CALP1
Cat. No. Product Name / Synonyms Application Reactivity
Calmodulin Isoform Comparison

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