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. 2022 Jan 31;41(12):1679–1690. doi: 10.1038/s41388-022-02199-9

Fig. 1. hnRNP E1 is a candidate substrate for ARIH1.

Fig. 1

a Expression of hnRNP E1 and the mesenchymal markers, N-cadherin and Vimentin, in NMuMG cells treated with TGFβ. Hsp90 was used as a loading control. b Schematic of ARIH1-miniTurboID pulldown strategy (top panel). Immunoblot of biotin and hnRNP E1 in Hek293 cells either mock transfected or transfected with ARIH1-miniTurboID and treated with or without Biotin for 3 h. c Stable KD of ARIH1 by shRNA (top panel) and hnRNP E1 protein stability in control and ARIH1 KD NMuMG cells (bottom panel). d Ubiquitination of exogenous V5 tagged hnRNP E1 detected by V5 immunoprecipitation and K48 ubiquitin immunoblot. e Protein stability, assessed by cycloheximide chase assay, of WT and K314R or K351R mutant V5-tagged hnRNP E1. f Ubiquitination of WT and K314R V5 tagged hnRNP E1 detected by V5 immunoprecipitation and immunoblot.