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New genetic research advances understanding of internal mechanisms of biological clocks
New genetic research has advanced our understanding of the internal mechanisms of biological clocks. Clocks are important control systems in all organisms, governing daily activities such as sleep, metabolism, and hormone release. Disruptions to these clocks can have major consequences for health.
Researchers have now identified several hundred genes that are involved in clock function. These genes work together to produce a complex network of proteins that interact with each other to keep the clock ticking.
One of the most important discoveries is that clocks are not just run by proteins, but also by small molecules called microRNAs. MicroRNAs are tiny pieces of RNA that regulate gene activity. It is believed that they play a major role in controlling the circadian rhythm, the 24-hour cycle that governs many of the body’s processes.
This discovery could have major implications for the treatment of conditions such as insomnia, jet lag, and shift work sleep disorder, which are all caused by disruptions to the circadian rhythm. It may also help to explain why some people are more susceptible to these conditions than others.
The identification of the genes and proteins involved in clock function is a major step forward in our understanding of how these vital systems work. It opens up the possibility of developing new and more targeted treatments for conditions that adversely affect our daily lives.
Over the past few decades, our understanding of how biological clocks ticking inside cells regulate everything from daily sleep-wake cycles to flowering in plants has grown immensely. However, many questions about the internal mechanisms of these clocks remain. A recent study published in the journal Science has taken us one step closer to answering these questions, by identifying a key gene that helps to keep these clocks ticking.
This gene, called PER2, encodes a protein that is a key component of the machinery that drives circadian rhythms. Mutations in PER2 have been implicated in several human disorders, including one form of familial advanced sleep phase syndrome, in which people go to bed and wake up much earlier than normal.
In the new study, the researchers used a technique called CRISPR-Cas9 to mutate PER2 in fruit fly cells. They found that when PER2 was absent, the cells’ biological clocks completely stopped working. This suggests that PER2 is essential for the function of biological clocks.
Additionally, the researchers found that when PER2 was mutated, the protein it encoded was less stable. This led the team to believe that the stability of PER2 protein may be important for the proper function of biological clocks.
While this study was done in fruit fly cells, it is likely that the same is true for the PER2 protein in human cells. This research provides us with a better understanding of how this important protein works, and how it might be involved in disorders of the circadian rhythm.