Keywords 3′ UTR intrinsically disordered regions protein folding co-translational transcription factor chromatin regulator RNA–IDR interaction RNA-based chaperone activity RNA multivalency hydrophobic clusters mesh-like condensates crosslinking mass spectrometry Get full text access Log in, subscribe or purchase for full access. References 1. Lianoglou, S. ∙ Garg, V. ∙ Yang, J.L. ... Ubiquitously transcribed genes use alternative polyadenylation to achieve tissue-specific expression Genes Dev.