Fig. 2

Cell-specific ISR activation upon silencing of LONP2. RNA sequencing (nā=ā3 independent experiments per condition), LONP2 silencing for 7Ā days. a Principal component (PC) score plot. b Volcano plots showing all identified transcripts. c Transcripts encoding integrated stress response (ISR) factors. d Immunoblotting for ISR-related proteins, vinculin was used as a loading control. e Translation assay: cells were incubated with puromycin for 10Ā min., and incorporation of puromycin into newly synthesized proteins was revealed with anti-puromycin antibodies. GAPDH was used as a loading control. f Transcripts encoding ribosomal biogenesis-related rRNA, snoRNA and mRNA genes. g Immunoblot of ribosomal biogenesis regulator RRS1 in NT- and LONP2-silenced COS-7 cells and U2OS cells