How do cells answer environmental change? normally, cells should regulate their RNA amounts to applicable levels with precise temporal arrangement. to determine such modification in RNA level, synthesis and decay rates of RNAs are tightly regulated. RNA mechanics is thus an elementary facet for factor regulation. several researchers, therefore, attempt to perceive synthesis (i.e., transcription) and degradation of RNAs.
Recent advance in biotechnologies, like microarray and RNA-seq, modify United States to quantify the RNA amounts of every gene within the cells. By victimization these technologies, researchers will currently study gene-expression at a system-wide level. However, commonplace RNA-seq will solely live RNA abundance and can’t verify RNA mechanics like synthesis and decay rate. Use of changed RNA analogs could be an outstanding resolution to quantify RNA mechanics. for instance, if we tend to additional AN uridine analog into the medium, cells transcribe recently RNAs with the analog. during this scenario, we will distinguish recently transcribed RNAs containing uridine analog from the general RNA population. By quantifying the amounts of those tagged RNAs, we will verify the synthesis or decay rates of RNAs.
A recent review in WIREs RNA by Akimsitu and Yamada summarizes the strategies that live the synthesis and decay rate of RNAs. These strategies reveal however cells modify RNA mechanics to determine precise time-course changes of RNA amounts upon numerous cellular conditions. moreover, the authors discuss the underlying mechanisms of those changes in mechanics, that are regulated by transcription factors and RNA-binding proteins. One necessary lesson from this review is that each synthesis and degradation of RNAs play an important role in factor regulation. Considering that a lot of studies solely specialize in one aspect of the factor regulation and neglect the impact of the opposite, combining the strategies bestowed within the review can result in a comprehensive understanding of factor regulation in cells.