USP19 and cancer: As expected, CORO2A was detected by immunoprecipitation using an anti-USP19 antibody, and reciprocal immunoprecipitation with an anti-CORO2A antibody also brought down USP19 in non-cancer cells (293T and 3T3-L1 cells) and cancer cells (MCF7 cells) (Figure 3F–3H).