Agnes Noy
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agnesnoy.bsky.social
Agnes Noy
@agnesnoy.bsky.social
Senior Lecturer at the University of York. DNA, protein-DNA, biophysics, modeling, supercoiling, and much more
💠 Positive charges = blue
🔴 Negative charges = red
🧬 DNA is negatively charged, so watch how the protein interacts!
October 30, 2025 at 3:03 PM
And finally, we described melting bubbles in highly overtwisted DNA, once again in agreement with biochemical assays from Zechiedrich's lab (6/6)
January 27, 2025 at 5:05 PM
We also describe the dynamics and diffusion of supercoils. Big end-to-end fluctuations are caused by supercoil reorganization as described by
Lipfert and @ecarlon.bsky.social labs (5/6)
January 27, 2025 at 5:05 PM
This state converges to tip-bubbles as tension increases in agreement with previous oxDNA simulations from Doye and Louis labs 👇 (again, bubbles in red) (4/6)
January 27, 2025 at 5:05 PM
We find a new state in negative supercoiling and minimal tension where bubbles form in AT-rich regions irrespective of the underlying DNA topology. They were already detected by Zechiedrich's lab using biochemical assays (bubbles in red) 👇 (3/6)
January 27, 2025 at 5:05 PM
We provide the conformational phase diagram. We map the regime where bubbles and supercoils are excluded from each other in moderate levels of supercoiling. We name it 'elastic' because it was deduced by rod elastic models (2/6)
January 27, 2025 at 5:05 PM
But still is very good! Well done! I have never won any running prize, apart from being in the top ten from the last... 🙃
January 24, 2025 at 5:39 PM