Anti-MAPK regulated co-repressor interacting protein 1 antibodies are used in antigen-specific immunodetection in biological samples. The target MAPK regulated co-repressor interacting protein 1 is a known alias name of the protein MAPK regulated corepressor interacting protein 1, encoded by the MCRIP1 gene in humans. This 97-amino acid residue protein is a member of the MCRIP protein family. It is localized to the nucleus and cytoplasm of the cell and features phosphorylated post-translational modifications. It is reported to be widely expressed in many tissue types.