Transactivation is an increase in the rate of gene expression due to certain biological processes or in an artificial way.
Transactivation can be initiated by endogenous or viral cellular proteins, called transactivators. These proteins act in trans (for example, at the intermolecular level). HIV and HTLV are just two of the many viruses that code for transactivators that boost their own gene expression.
In eukaryotes, gene regulation occurs at the level of transcription with the help of certain regulatory proteins.. Activator proteins encourage binding of theRNA polymerase to the promoter activator protein is a <span> </span><span>protein</span><span> </span><span>that</span><span> </span><span>stimulates</span><span> </span><span>the</span><span> </span><span>expression</span><span> </span><span>of</span><span> </span><span>a</span><span> </span><span>gene.</span>
