The phrase "activated not by" is correct and usable in written English.
It can be used to describe a situation where something is triggered or initiated by a different factor than what might be expected.
Example: "The device is activated not by a switch, but by a voice command."
Alternatives: "triggered not by" or "initiated not by".
Because of the accelerating effect of thrombomodulin on the activation of protein C, the protein may be said to be activated not by thrombin but the thrombin-thrombomodulin (or even thrombin-thrombomodulin-EPCR) complex.
Laugh anew as one of the nine taping machines is suddenly activated not by a fresh conspiratorial thrust but by a lawn mower outside the Oval Office bursting into the innocent thrum of summer.
Based on these findings, we postulate that epithelial TAK1 is activated not by DSS but by cytokines and TLR/NLR ligands that are upregulated by DSS-induced injury, and that TAK1 signaling may induce production of cytoprotective factors and facilitate epithelial cell survival and proliferation.
Another possible explanation, based on both main and simple effect analyses (C-M), is that the insula was activated, not by simplest aspects of the visual stimuli (e.g. shape or motion), but rather by higher order information coming from prefrontal areas 45 and 46.
Importantly, the channels are activated not by the production of receptor-associated signalling molecules, but by the decrease in luminal ER Ca2+ content [ 2], involving a coupling between the ER and the PM.
Interestingly, PPARα is an important activator of fatty acid catabolism and may be activated not only by AMPK, but also by fatty acids, fibrates, and eicosanoids [ 48].
ER genomic effects are activated not only by estrogen but also by its phosphorylation mediated by signaling pathways such as MAPK or PI3K/AKT pathway [ 12, 13].
Moreover, the insular cortex is activated not only by taste but also by non-taste information from oral stimuli.
The MOP receptor is activated not only by morphine, but also by other opiate drugs such as methadone and endogenous opioids such as endorphins.
The mutated AR in LNCaP cells can be activated not only by androgens but also by progesterone, estrogen, adrenal androgens, and hydroxyf lutamide [28], [29].
This may be especially important after damage to the salivary gland since TLR4 is activated not only by infections but also by damaged self-tissue (DAMPs).
