The phrase "altering the activity of" is correct and usable in written English.
It can be used in contexts where you are discussing changes to a process, function, or behavior, often in scientific or technical writing.
Example: "The new drug is effective in altering the activity of certain enzymes in the body."
Alternatives: "modifying the function of" or "changing the behavior of".
The results of this study suggest that, in addition to its role in activation of steroid receptors, CARM1 functions as a transcriptional modulator by altering the activity of many transcriptional factors, especially with regard to androgen independent PCa and colorectal cancers.
This showed that spatial exploration evokes activity in ensembles of dentate granule cells, and that randomly altering the activity of these networks with optogenetic stimulation increases the size of the ensembles, or the number of cells within them.
Drugs may act directly on the smooth muscle cells, or they may act indirectly for example, by altering the activity of nerves of the autonomic nervous system that regulate vasoconstriction or vasodilation.
By altering the activity of mitochondria the powerhouses that provide cells with energy it forces the body to burn fat.
On the other hand, Dennettia tripetala caused an increase in liver and kidney SOD and catalase activities, indicating that one way in which this plant confers protection is by altering the activity of antioxidant enzymes.
The metabolism of SMX appears to be influenced by the activity of N-acetyltransferase 2 (NAT2), with the existence of genetic polymorphism altering the activity of the enzyme [22].
Now research with tiny, transparent zebrafish suggests that some of these bugs do more: altering the activity of individual genes in their host, and potentially shaping the fish's development and physiology.
Searching for genes that might guide this decision, the team noticed that rat cells in the process of becoming neurons contained increased levels of RNA corresponding to so-called L1 retrotransposons, bits of DNA that can jump around in the genome, sometimes altering the activity of genes they land in.
Who would have guessed that altering the activity of only a single gene could dramatically affect aging?
Allosteric interactions with metabolites upstream or downstream in an enzyme's metabolic pathway cause feedback regulation, altering the activity of the enzyme according to the flux through the rest of the pathway.
Thus, altering the activity of PKCε could lead to various impacts on the essential biological activity of cells.
