Just published: "Inteins: A Swiss Army Knife for #SyntheticBiology" with @St_Anastassov & @KhammashLab in Biotechnology Advances.
One day, #Inteins ๐๐จ๐ฎ๐ฅ๐ make #genetic circuit design as simple as electric ones! ๐งฌโก https://t.co/en8cziEXTi
We have crafted 3 different topologies that implement various anti-windup strategies. We developed a couple of theorems that link this molecular strategies to well-known control-theoretic strategies. We also devised reaction network and genetic realizations using inteins.
Check out our paper in the @KhammashLab
on #biomolecular protection circuits. Integral windup is similar to a trauma inflicted by severe disturbances with lasting effects even after the disturbance ends. How do we mitigate that in biomolecular circuits?1/n https://t.co/7F3S8ov380
An anti-windup strategy is like a therapeutic intervention, helping a controller to move past its traumatic experience by promoting a form of forgetfulness toward the disruptive event. Anti-windup circuits thus avoid windup-induced instabilities and poor dynamic performance. 2/n
One of the highlights of 2023 is teaching #controlsystems to an incredible cohort at @Ashesi University in #ghana ๐ฌ๐ญ as part of the @ETH4D (ETH for Development) master program. It was an absolute pleasure getting to know all of the students!
Are you looking for a versatile and inexpensive illumination platform for optogenetics experiments?
Check out our new DIYA device... It's become the most popular platform in our lab for bacterial, yeast and mammalian optogenetics.
#synbio#optogenetics
https://t.co/txk715XLFH
Reference-based antithetic integral feedback (AIF) was previously shown to deliver robust perfect adaptation at the population level, but may increase cell-to-cell variability. The sensor-based AIF, however, is capable of reducing variability, thanks to precisely the hidden P!
Check out our latest preprint in the @KhammashLab on "A Hidden Proportional Feedback Mechanism Underlies Enhanced Dynamic Performance and Noise Rejection in Sensor-Based Antithetic Integral Control"
https://t.co/LdzOQZg8Pi
Special thanks to my coauthor @MucunHou
Actuating by the sensor molecule Z2 (instead of Z1) embeds a (filtered) PI controller in just one actuation reaction. This brings with it the enhanced dynamic performance offered by the P component while maintaining the robustness offered by the integrator.
Fast post-translational modifications performed by inteins may generate sophisticated #controllers. To study and untangle the underlying dynamics, we have developed two theorems that enable a graphical screening for #RPA and a #modelreduction recipe accessible to non-experts 5/5
Check out our work in the @KhammashLab on building #integral controllers genetically with split #inteins! (Play the video with sound on for an animation of a genetic circuit!)
https://t.co/peQ2H3TrmH
Special thanks to my coauthors @St_Anastassov, @Ch_Hs_Chang & @KhammashLab 1/5
Multiple #genetic#circuits, with remarkable dynamic ranges, were designed, built and tested. This versatility was possible because with split inteins you can convert any protein to a controller molecule thanks to their small size, flexibility and modularity 4/5