The GST-YTHDC1 (aa 3–109) fusion protein (S2A Fig) was expressed in E. coli using the pGEX4T-1 vector and affinity purified with glutathione Sepharose 4B (GE Healthcare). Rabbits were immunized with recombinant protein, yielding antisera UP2410 and UP2411 (Cocalico Biologicals Inc.). For western blotting and immunofluorescence, antibodies were affinity purified against the GST fusion protein.
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