An architectural RNA builds a reaction crucible through molecular concentration and activated enzyme selection
Architectural RNAs (arcRNAs) scaffold membraneless organelles (MLOs), yet how they organize functional proteins remains unclear. Nuclear stress bodies (nSBs), MLOs scaffolded by HSATIII arcRNAs, incorporate SRSFs during stress. During stress recovery, nSBs function as reaction crucibles that recruit the kinase CLK1 to accelerate SRSF rephosphorylation and normalize stress-induced splicing. Here,…
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