TRIM21 and colorectal carcinoma: RNA pull-down assays revealed that the 1–379 nt fragment of DLGAP1-AS2 mediates the bind of DLGAP1-AS2 to Trim21 (Figs. 4D and 5 L), and RIP assays further indicated that DLGAP1-AS2 was significantly enriched in the RNA-protein complexes precipitated with anti-Myc antibody in CRC cells (Fig. 5 M).