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. 2022 Apr 6;13:1875. doi: 10.1038/s41467-022-29481-4

Fig. 5. SM is dispensable for ESCRT recruitment to damaged lysosomes.

Fig. 5

a Time-lapse images of HeLa cells co-expressing mKate-tagged EqtSM (green) and eGFP-tagged CHMP4B (magenta) and treated with 1 mM LLOMe for the indicated time. White arrows mark EqtSM-positive puncta that gradually accumulate CHMP4B. Scale bar, 5 μm. b Time-course plotting EqtSM- and CHMP4B-positive puncta normalized to maximum in cells treated as in (a). Data are means ± SD. n = 5 cells. c Fluorescence images of wild-type (WT) and SMS-KO HeLa cells treated with 1 mM LLOMe for the indicated time, fixed and then stained with DAPI (blue) and antibodies against CHMP4B (green) and actin (magenta). Scale bar, 10 μm. d Time-course plotting normalized CHMP4B intensity in cells treated as in (c). For each violin plot, the middle line denotes the median, and the top and bottom lines indicate the 75th and 25th percentile. In chronological order: n = 40 (WT), 40 (SMS-KO), 60 (WT), 60 (SMS-KO), 60 (WT), 60 (SMS-KO), 92 (WT), 70 (SMS-KO), 80 (WT), 79 (SMS-KO), 81 (WT), 87 (SMS-KO), 82 (WT), 78 (SMS-KO), 96 (WT), 101 (SMS-KO), 70 (WT) and 70 cells (SMS-KO) over two independent experiments. P values were calculated by unpaired two-tailed t test.