Date published: 2025-9-9

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Trav13n-1 Activators

Chemical activators of Trav13n-1 can initiate a cascade of cellular events leading to the protein's functional activation. Forskolin is known to directly activate adenylyl cyclase, which increases the levels of cyclic AMP (cAMP) within the cell. Elevated cAMP levels can activate protein kinase A (PKA), which in turn can phosphorylate various substrates, including Trav13n-1, leading to its activation. Another pathway involves Ionomycin, which increases intracellular calcium concentration, thereby activating calcium-dependent kinases that can also target Trav13n-1 for activation. Similarly, phorbol esters like PMA can activate protein kinase C (PKC), and PKC-mediated phosphorylation is a well-known mechanism for protein activation, including Trav13n-1.

Thapsigargin serves as an activator by inhibiting the sarcoplasmic/endoplasmic reticulum Ca2+ ATPase (SERCA), which causes an increase in cytosolic calcium levels. This increase can activate calcium-dependent proteins and kinases that may have a role in activating Trav13n-1. Fusicoccin, by stabilizing the interaction between 14-3-3 proteins and H+-ATPases, leads to a downstream signaling effect that can result in the activation of Trav13n-1. The actin cytoskeleton is also implicated in signaling pathways, and agents like Jasplakinolide that stabilize actin filaments can alter signaling pathways resulting in Trav13n-1 activation. Sphingosine-1-phosphate, through its receptor-mediated signaling, can initiate a cascade of phosphorylation events leading to Trav13n-1 activation. Hydrogen Peroxide, as a reactive oxygen species, can activate various cellular kinases and transcription factors, and these activated components may target and activate Trav13n-1. The inhibition of protein phosphatases by compounds like Calyculin A and Okadaic Acid results in a sustained phosphorylated state of proteins, thereby keeping proteins such as Trav13n-1 in an active form. Anisomycin activates stress-activated protein kinases, which can phosphorylate and activate Trav13n-1. Lastly, Dibutyryl-cAMP, a cAMP analog, bypasses the need for adenylyl cyclase activation and directly stimulates cAMP-dependent pathways, which can lead to the activation of PKA and subsequent activation of Trav13n-1 through phosphorylation events.

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