Fig. 3

Semiextractable RNA as a hallmark of granular RNA. RNAs within phase-separated structures (arcRNAs) remain in the protein-rich phase when extracted using acid guanidinium thiocyanate-phenol‒chloroform (AGPC) reagents (e.g., TRIzol). However, these RNAs can be recovered in the aqueous phase by needle shearing or heat treatment