In addition resveratrol's ability to directly activate sirtuin 1 has been called into question.

It can be activated both by Key Binding or directly from the command palette.

As such, it does not possess the capacity to directly activate the ER.

They may directly activate B cells, regardless of their antigenic specificity.

When highly familiar idioms encountered, their idiomatic meanings can be directly activated.

Other microbial products can directly activate monocytes and this leads to the production of pro-inflammatory cytokines.

They only directly activate these ion channels using effector proteins or the G protein subunits themselves (see picture).

It has been shown that G proteins directly activate one type of Cl channel in skeletal muscle.

Stimulation of peripheral chemoreceptors directly activates the medullary vagal center and slows the heart rate.

They are able to directly activate a receptor via an allosteric binding site in the absence of an orthosteric ligand.