Calmodulin (CaM) is a ubiquitous, small, calcium-binding protein that plays a pivotal role in mediating intracellular calcium signaling. It's an integral component in a variety of cellular processes, ranging from metabolism to muscle contraction, and from memory processes in the brain to immune responses. The binding of calcium to calmodulin leads to a conformational change in the protein, allowing it to interact with and regulate a multitude of target proteins. The proper functioning of this regulatory process is vital for cellular homeostasis, and its misregulation can lead to various pathological states. It is in this context that calmodulin activators are of significance. These activators are chemicals that can enhance the activity of calmodulin, facilitating its interaction with its target proteins and amplifying the downstream effects of its signaling pathways.
Calmodulin activators function by either promoting the binding of calcium ions to calmodulin or by stabilizing the active conformation of calmodulin even in the absence of calcium. These molecules might mimic the structural elements of target proteins that interact with calmodulin, thus fostering its activation. Understanding the mechanism of action of these activators can provide valuable insights into the calcium-calmodulin signaling system and its intricate regulatory networks. Research into calmodulin activators also broadens our knowledge of intracellular calcium dynamics and its role in cell biology. While there are many molecules that can inhibit calmodulin activity, the study of those that enhance its activity can reveal the fine balance that cells maintain in calcium signaling and its regulation.
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| Product Name | CAS # | Catalog # | QUANTITY | Price | Citations | RATING |
|---|---|---|---|---|---|---|
Thapsigargin | 67526-95-8 | sc-24017 sc-24017A | 1 mg 5 mg | $94.00 $349.00 | 114 | |
Inhibits the sarco/endoplasmic reticulum Ca2+-ATPase (SERCA) pumps, leading to an increase in cytosolic calcium levels. | ||||||
A23187 | 52665-69-7 | sc-3591 sc-3591B sc-3591A sc-3591C | 1 mg 5 mg 10 mg 25 mg | $54.00 $128.00 $199.00 $311.00 | 23 | |
Ionophore that increases intracellular calcium levels by transporting Ca2+ ions across cell membranes. | ||||||
Ionomycin | 56092-82-1 | sc-3592 sc-3592A | 1 mg 5 mg | $76.00 $265.00 | 80 | |
Calcium ionophore that selectively binds and transports Ca2+ across lipid membranes, leading to an increase in intracellular calcium. | ||||||
Nifedipine | 21829-25-4 | sc-3589 sc-3589A | 1 g 5 g | $58.00 $170.00 | 15 | |
L-type calcium channel blocker that inhibits the influx of calcium ions into vascular smooth muscle and cardiac muscle cells. | ||||||
Verapamil | 52-53-9 | sc-507373 | 1 g | $367.00 | ||
L-type calcium channel blocker; inhibits calcium ion from entering the "slow channels" or select voltage-sensitive areas of vascular smooth muscle and myocardium. | ||||||
Nimodipine | 66085-59-4 | sc-201464 sc-201464A | 100 mg 1 g | $60.00 $301.00 | 2 | |
L-type calcium channel blocker; preferentially acts on cerebral vasculature. | ||||||
Ryanodine | 15662-33-6 | sc-201523 sc-201523A | 1 mg 5 mg | $219.00 $765.00 | 19 | |
Interacts with ryanodine receptors and modulates calcium release from the sarcoplasmic/endoplasmic reticulum. | ||||||
BAPTA/AM | 126150-97-8 | sc-202488 sc-202488A | 25 mg 100 mg | $138.00 $449.00 | 61 | |
Cell-permeable calcium chelator that can decrease intracellular calcium levels. | ||||||
Caffeine | 58-08-2 | sc-202514 sc-202514A sc-202514B sc-202514C sc-202514D | 5 g 100 g 250 g 1 kg 5 kg | $32.00 $66.00 $95.00 $188.00 $760.00 | 13 | |
Mobilizes intracellular calcium by inhibiting ryanodine receptors in the sarcoplasmic/endoplasmic reticulum. | ||||||
2-APB | 524-95-8 | sc-201487 sc-201487A | 20 mg 100 mg | $27.00 $52.00 | 37 | |
Modulates IP3 receptor-mediated calcium release and can also block store-operated calcium channels. | ||||||