ATHL1 Activators
ATHL1 can work through a variety of intracellular signaling pathways to promote its phosphorylation and subsequent activation. Forskolin directly raises cAMP levels within cells, which can activate protein kinase A (PKA). PKA is known to phosphorylate serine and threonine residues on its target proteins, and if ATHL1 contains such residues that are recognizable by PKA, forskolin can lead to its activation. Similarly, isoproterenol functions as a beta-adrenergic agonist, also raising cAMP levels and activating PKA, which can then target ATHL1. IBMX acts by inhibiting phosphodiesterases, thereby preventing the breakdown of cAMP and indirectly sustaining PKA activity, which again, could target ATHL1 for activation. In a different pathway, phorbol 12-myristate 13-acetate (PMA) activates protein kinase C (PKC), which may phosphorylate ATHL1 if it has PKC-specific phosphorylation sites. Bisindolylmaleimide I, while primarily a PKC inhibitor, under certain conditions can also activate PKC, which in turn may act on ATHL1.
Epidermal Growth Factor (EGF) stimulates its receptor, leading to a phosphorylation cascade through the MAPK/ERK pathway, which may include ATHL1 as a downstream target. Ionomycin increases intracellular calcium concentrations and can activate calcium/calmodulin-dependent protein kinases (CaMKs), which could phosphorylate ATHL1 if it is a substrate for these kinases. Anisomycin, by inhibiting protein synthesis, indirectly activates stress-activated protein kinases such as JNK, which may also target ATHL1. Calyculin A and Okadaic Acid both inhibit protein phosphatases PP1 and PP2A, leading to a general increase in protein phosphorylation within the cell; if ATHL1 is normally dephosphorylated by these phosphatases, these inhibitors can result in its activation by maintaining its phosphorylated state. Lastly, Spermine and Hydrogen Peroxide can affect ATHL1 through modulation of NMDA receptor activity and oxidative stress signaling, respectively, which can lead to the activation of various kinases that may target ATHL1.
SEE ALSO...
| Product Name | CAS # | Catalog # | QUANTITY | Price | Citations | RATING |
|---|---|---|---|---|---|---|
IBMX | 28822-58-4 | sc-201188 sc-201188B sc-201188A | 200 mg 500 mg 1 g | $260.00 $350.00 $500.00 | 34 | |
IBMX is a non-selective inhibitor of phosphodiesterases (PDEs), which prevents the breakdown of cAMP. Increased cAMP levels indirectly enhance PKA activity, potentially leading to the activation of ATHL1 by phosphorylation. | ||||||
PMA | 16561-29-8 | sc-3576 sc-3576A sc-3576B sc-3576C sc-3576D | 1 mg 5 mg 10 mg 25 mg 100 mg | $41.00 $132.00 $214.00 $500.00 $948.00 | 119 | |
PMA activates protein kinase C (PKC), which may phosphorylate and activate ATHL1 if PKC phosphorylation sites reside on ATHL1. | ||||||
Ionomycin | 56092-82-1 | sc-3592 sc-3592A | 1 mg 5 mg | $78.00 $270.00 | 80 | |
Ionomycin increases intracellular calcium levels, which can activate calcium/calmodulin-dependent protein kinases (CaMKs). If ATHL1 is a substrate for CaMK, its phosphorylation and activation by CaMK is possible. | ||||||
Anisomycin | 22862-76-6 | sc-3524 sc-3524A | 5 mg 50 mg | $99.00 $259.00 | 36 | |
Anisomycin is a protein synthesis inhibitor that activates stress-activated protein kinases (SAPKs) like JNK. If ATHL1 is a substrate of SAPKs, its activation through phosphorylation by these kinases could occur. | ||||||
Isoproterenol Hydrochloride | 51-30-9 | sc-202188 sc-202188A | 100 mg 500 mg | $28.00 $38.00 | 5 | |
Isoproterenol is a beta-adrenergic agonist that increases cAMP levels, leading to PKA activation. PKA can then activate ATHL1 by phosphorylation if there are PKA recognition sites on ATHL1. | ||||||
Calyculin A | 101932-71-2 | sc-24000 sc-24000A | 10 µg 100 µg | $163.00 $800.00 | 59 | |
Calyculin A is a potent inhibitor of protein phosphatases 1 (PP1) and 2A (PP2A), leading to increased phosphorylation levels in cells. If ATHL1 dephosphorylation is normally regulated by PP1 or PP2A, inhibition by Calyculin A could result in its activation through maintained phosphorylation. | ||||||
Spermine | 71-44-3 | sc-212953A sc-212953 sc-212953B sc-212953C | 1 g 5 g 25 g 100 g | $61.00 $196.00 $277.00 $901.00 | 1 | |
Spermine can modulate NMDA receptor activity which, when activated, can increase intracellular calcium levels. This rise in calcium may activate CaMK, potentially leading to the activation of ATHL1 if it is a calcium-sensitive protein. | ||||||
Hydrogen Peroxide | 7722-84-1 | sc-203336 sc-203336A sc-203336B | 100 ml 500 ml 3.8 L | $31.00 $61.00 $95.00 | 28 | |
Hydrogen peroxide is involved in oxidative stress signaling and can modulate the activity of various kinases and phosphatases. If ATHL1 is regulated by redox-sensitive kinases, its activation might occur through oxidative modification. | ||||||
Okadaic Acid | 78111-17-8 | sc-3513 sc-3513A sc-3513B | 25 µg 100 µg 1 mg | $291.00 $530.00 $1800.00 | 78 | |
Okadaic Acid is a specific inhibitor of PP1 and PP2A like Calyculin A, which can result in increased phosphorylation of proteins. If ATHL1 is a substrate for these phosphatases, their inhibition might lead to the activation of ATHL1. | ||||||
Bisindolylmaleimide I (GF 109203X) | 133052-90-1 | sc-24003A sc-24003 | 1 mg 5 mg | $105.00 $242.00 | 36 | |
Bisindolylmaleimide I is a selective PKC inhibitor, but it can also serve as an activator under certain conditions. In the context of ATHL1, if there is a role for PKC in the phosphorylation and activation of ATHL1, Bisindolylmaleimide I could act as an indirect activator through its modulation of PKC activity. | ||||||