RNA is a dancer: beyond the one-structure one-function paradigm

In the molecular biosciences, RNA often takes center stage in discussions of gene regulation, catalysis, and even inheritance. Yet, the way we conceptualize RNA structure is frequently borrowed, sometimes inappropriately, from our understanding of proteins. Protein structures are iconic in biology: rigid, precisely folded architectures, each typically associated with a single, well-defined function. RNA, on the other hand, plays by different rules. Its structural and functional identity is inherently contextual, dynamic, and multifaceted. This article challenges the widespread but misleading tendency to treat RNA structures as static frameworks like those of proteins. It offers a fresh perspective: RNA is not simply a molecular scaffold to be decoded in 3D; it is a shape-shifting player whose biological relevance arises from its adaptability and responsiveness to the cellular context.