New paper out in Biophys J @biophysicalsoc.bsky.social: upon heating, instead of expanding as folded structures, we found that unstructured RNAs (such as polyA in mRNA tails) undergo slight collapse. We traced it to the strengthened ion-RNA interactions at high temps. www.cell.com/biophysj/abs...
Temperature-dependent ion migration underlies sequence-specific collapse of unstructured RNA
Ions and temperature jointly regulate RNA structure, dynamics, and phase behavior, yet their coupled effects remain poorly understood at the molecular level. Single-stranded RNA (ssRNA), a ubiquitous ...
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