Anti-glial cells missing transcription factor 1 antibodies are used for the immunodetection of the protein encoded by the GCM1 gene. In humans, the canonical protein has a reported length of 436 amino acid residues and a mass of 49.3 kDa. Its subcellular localization is in the nucleus. It is reported to be highly expressed in the placenta. It is a reported transcription factor involved in the control of expression of placental growth factor (PGF) and other placenta-specific genes. Post-translational modifications have been described, including ubiquitination. Other names for this target antigen include hGCMa, chorion-specific transcription factor GCMa, GCM motif protein 1, glial cells missing homolog 1, and GCMA. Gene orthologs have been identified in the mouse, rat, bovine, frog, chimpanzee and chicken species.