Anti-ST18 C2H2C-type zinc finger transcription factor antibodies are used for the immunodetection of the protein encoded by the ST18 gene. In humans, the canonical protein has a reported length of 1047 amino acid residues and a mass of 115.2 kDa. Its subcellular localization is in the nucleus. A member of the MYT1 protein family, it is a reported repressor that binds to DNA sequences containing a bipartite element consisting of a direct repeat of the sequence 5'-AAAGTTT-3' separated by 2-9 nucleotides. Other names for this target antigen include NZF3, ZC2H2C3, ZC2HC10, ZNF387, suppression of tumorigenicity 18 protein, and NZF-3. Gene orthologs have been identified in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species.