UTR-ly unexpected: RNA chaperones tame intrinsically disordered proteins.

Linsenmeier, Miriam; Shorter, James · Cell · 2026

basic_science · Level V

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Abstract

How do cells ensure that complex, multidomain proteins fold correctly? Luo et al. reveal a self-contained solution. The 3' UTR of an mRNA co-translationally chaperones the protein it encodes, preventing intrinsically disordered regions from making inappropriate contacts. This functionality, localized to mesh-like condensates, challenges Anfinsen's dogma and opens therapeutic possibilities.

Medical subject headings