MKRN1 and colorectal carcinoma: Reciprocal exogenous (Fig. 3B) and endogenous (Fig. 3C) co-immunoprecipitation assays further confirmed the interaction, and immunofluorescence staining validated the co-localization of MKRN1 and AGC1 in the cytoplasm of CRC cells (Fig. 3D, Fig. S3 A).