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. 2023 Nov 15;14:7384. doi: 10.1038/s41467-023-42390-4

Fig. 6. PRMT1 activity mediates the nucleolar shuttling of SMN.

Fig. 6

a Representative microscopy images of immunofluorescence (IF) assay showing the localization of SMN (red) and FBL (green) at different times Post UV-Irradiation (PUVI) in cells transfected with siMock or siPRMT1 pool. Nuclei and nucleoli are indicated by dashed and dotted lines respectively. Scale bar: 5 µm. b, c Quantification of cells number for localization of (b) SMN (in Cajal Bodies [CBs] or Gems, at the periphery of the nucleolus or mixed localization) and (c) FBL (inside the nucleolus, outside the nucleolus or mixed localization) at different times PUVI in cells transfected with siMock or siPRMT1 pool. At least 145 cells from one representative experiment were analyzed. d Representative microscopy images of IF assay showing the localization of SMN (red) and FBL (green) in MRC5 cells treated with DMSO, MS023 or Furamidine followed by 16 J/m² UV-C irradiation. Nuclei and nucleoli are indicated by dashed and dotted lines respectively. Scale bar: 5 µm. e Quantification of cells number for localization of SMN (in Cajal Bodies [CBs] or Gems, at the periphery of the nucleolus or mixed localization) at different times PUVI in cells treated with DMSO, MS023 or Furamidine. At least 60 cells from one representative experiment were analyzed. Source data of graphs are provided as a Source Data file.