WT or PACSIN1 KO HeLa cells were treated with 20 μM MG132 or 2.5 μg/mL puromycin for 6 h. Detergent soluble-insoluble proteins were fractionated using 1% triton-X 100 with PBS [62 (link)]. After centrifugation, the supernatant was used as the soluble fraction. The pellet was extracted with RIPA buffer included 7 M Urea and used as the insoluble fraction. Aggresome staining was performed by aggresome detection kit (abcam, ab139486) according to the manufacturer’s instruction. The number of aggresome dots normalized per cell were quantified by Fiji.
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