Sentence examples for usually activated by from inspiring English sources

Complement activation occurs through three convergent pathways, in which the C components are usually activated by sequential proteolytic cleavages and/or by binding to previously activated components.

Usually activated by clicking a "like," "fave" or "thumbs up" button.

Cortisol is secreted when the endocrine system responds to stress; alpha-amylase is part of the "fight or flight" response, usually activated by the sympathetic nervous system in response to acute stresses.

The approach is conceived for application to a specific type of failure mechanism, usually activated by differential elongation/shortening between tiles and substrate, of the type induced by thermal gradients or fresh concrete maturation.

Titanium oxide is usually activated by UV light only which may not be readily available everywhere water treatment is to be carried out.

Alkanes are usually activated by a terminal oxidation to the corresponding primary alcohol, which is further oxidized by the alcohol and the aldehyde dehydrogenases to the corresponding acid.

Bacterial allosteric l-LDHs are commonly activated by FBP, which usually induces drastic improvement of the substrate S0.5 values of the enzymes (Garvie [1980]).

In sporophytic tissue, synthesis of callose is evidently achieved via a plasma membrane bound multi-subunit enzyme that is usually activated temporally by specific signals such as wounding, infection or other stress.

Thus, isoforms with shorter N-termini are usually activated less potently by their cognate agonists than their long counterparts.

Finally, a study by Afaq et al. recently showed that O3 effects on skin are mediated by the activation of the aryl receptor (AhR) and by the induction of the cytochrome P450 isoform CYP1, an enzyme in a detoxifying pathway usually activated in the cell by xenobiotics and carcinogens, suggesting that toxicological consequences follow the exposure of cutanous tissues to O3.

The JA-responsive pathway is usually activated when there is an attack by necrotrophic and chewing insects; whereas the SA mediates the defense response against biotrophic pathogens and insects such as aphids and whiteflies [ 62].