Anti-MAR8A antibodies are used in antigen-specific immunodetection in biological samples. The target MAR8A is a known alias name of the protein retrotransposon Gag like 8A, encoded by the RTL8A gene in humans. This 113-amino acid residue protein is a member of the FAM127 protein family. Other synonyms for MAR8A include CXX1b, CXX1b, and FAM127B.