Anti-ermin antibodies are used in the immunodetection of the protein encoded by the ERMN gene. In humans, the canonical protein has a reported length of 284 amino acid residues and a mass of 32.8 kDa. Its subcellular localization is in the cytoplasm. Alternative splicing is reported to yield 2 different isoforms for this protein. It is reported to be highly expressed in adult and fetal brain. It is reported to play a role in in cytoskeletal rearrangements during the late wrapping and/or compaction phases of myelinogenesis as well as in maintenance and stability of myelin sheath in the adult. Other names for this target antigen include ermin, ERM-like protein and juxtanodin.