LOC729991-MEF2B Activators
Chemical activators of LOC729991-MEF2B engage in various molecular mechanisms to increase the phosphorylation and activation of this transcription factor. Isoproterenol functions by binding to beta-adrenergic receptors, which in turn heightens the levels of cAMP within the cell. The surge in cAMP activates protein kinase A (PKA), and this kinase is directly responsible for phosphorylating LOC729991-MEF2B, thus enhancing its DNA-binding activity. Similarly, Forskolin exerts its effect by directly stimulating adenylyl cyclase, increasing cAMP levels and activating PKA, leading to the phosphorylation of LOC729991-MEF2B. Another cAMP analog, Dibutyryl-cAMP, permeates cellular membranes to elevate cAMP intracellularly, subsequently activating PKA and promoting the phosphorylation of LOC729991-MEF2B.
Phorbol 12-myristate 13-acetate (PMA) activates protein kinase C (PKC), which can phosphorylate LOC729991-MEF2B. Ionomycin, by increasing intracellular calcium levels, triggers the activation of calmodulin-dependent kinases such as CaMK, which can also lead to the phosphorylation of LOC729991-MEF2B. Thapsigargin causes a similar increase in intracellular calcium by inhibiting the SERCA pump, thereby activating pathways involving CaMK that may phosphorylate LOC729991-MEF2B. Both Okadaic Acid and Calyculin A inhibit protein phosphatases PP1 and PP2A, preventing the dephosphorylation of proteins, which results in a prolonged phosphorylated and active state of LOC729991-MEF2B. Anisomycin activates stress-activated protein kinases such as JNK, which may contribute to the phosphorylation of LOC729991-MEF2B. KN-93 inhibits CaMKII, but its active form can paradoxically act as an activator, potentially leading to the phosphorylation of LOC729991-MEF2B. Additionally, H-89, although primarily an inhibitor of PKA, may influence other kinases, indirectly contributing to the phosphorylation and activation of LOC729991-MEF2B. Lastly, Pervanadate's inhibition of protein tyrosine phosphatases can enhance the tyrosine phosphorylation of proteins involved in signaling pathways that phosphorylate LOC729991-MEF2B.
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| Product Name | CAS # | Catalog # | QUANTITY | Price | Citations | RATING |
|---|---|---|---|---|---|---|
Isoproterenol Hydrochloride | 51-30-9 | sc-202188 sc-202188A | 100 mg 500 mg | $28.00 $38.00 | 5 | |
Isoproterenol activates beta-adrenergic receptors which in turn increases cAMP levels. Elevated cAMP activates PKA, which can phosphorylate and thus activate transcription factors like LOC729991-MEF2B by enhancing its DNA-binding activity and promoting gene transcription relevant to the pathways in which LOC729991-MEF2B is involved. | ||||||
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 has been implicated in the phosphorylation of various proteins, including transcription factors. Activation of PKC can lead to phosphorylation and activation of LOC729991-MEF2B, enhancing its transcriptional activity. | ||||||
Ionomycin | 56092-82-1 | sc-3592 sc-3592A | 1 mg 5 mg | $78.00 $270.00 | 80 | |
Ionomycin acts as an ionophore, significantly increasing intracellular calcium levels, which then activate calmodulin-dependent kinase (CaMK). CaMK can activate transcription factors by phosphorylation. Through this pathway, ionomycin can lead to the activation of LOC729991-MEF2B. | ||||||
Dibutyryl-cAMP | 16980-89-5 | sc-201567 sc-201567A sc-201567B sc-201567C | 20 mg 100 mg 500 mg 10 g | $47.00 $136.00 $492.00 $4552.00 | 74 | |
Dibutyryl-cAMP is a cell-permeable cAMP analog that activates PKA. PKA activation leads to phosphorylation of target proteins, including transcription factors like LOC729991-MEF2B, which can result in its functional activation within its target pathways. | ||||||
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 potent inhibitor of protein phosphatases 1 (PP1) and 2A (PP2A), which prevents dephosphorylation of proteins, thereby maintaining proteins in their phosphorylated, activated state. This can result in sustained activation of transcription factors such as LOC729991-MEF2B due to reduced dephosphorylation. | ||||||
Anisomycin | 22862-76-6 | sc-3524 sc-3524A | 5 mg 50 mg | $99.00 $259.00 | 36 | |
Anisomycin is known to activate stress-activated protein kinases like JNK, which can lead to the phosphorylation of specific transcription factors. Through this mechanism, anisomycin can contribute to the phosphorylation and subsequent activation of LOC729991-MEF2B. | ||||||
Thapsigargin | 67526-95-8 | sc-24017 sc-24017A | 1 mg 5 mg | $136.00 $446.00 | 114 | |
Thapsigargin inhibits the sarco/endoplasmic reticulum Ca2+-ATPase (SERCA), leading to an increase in intracellular calcium levels. Elevated calcium can activate signaling pathways involving CaMK, which may then phosphorylate and activate LOC729991-MEF2B. | ||||||
Calyculin A | 101932-71-2 | sc-24000 sc-24000A | 10 µg 100 µg | $163.00 $800.00 | 59 | |
Calyculin A is an inhibitor of protein phosphatases such as PP1 and PP2A. By inhibiting these phosphatases, Calyculin A prevents the dephosphorylation of proteins, potentially maintaining LOC729991-MEF2B in an activated state due to sustained phosphorylation. | ||||||
KN-93 | 139298-40-1 | sc-202199 | 1 mg | $182.00 | 25 | |
KN-93 is a specific inhibitor of CaMKII, but its active form KN-92 can act as an activator. Activation of CaMKII can lead to phosphorylation of various proteins, including transcription factors, thereby potentially leading to the activation of LOC729991-MEF2B. | ||||||