Anti-ZC3H13 antibodies are used in the immunodetection of the protein zinc finger CCCH-type containing 13. In humans, the canonical protein has a reported length of 1668 amino acid residues and a mass of 196.6 kDa. Its subcellular localization is in the nucleus. Alternative splicing is reported to yield 2 different isoforms for this protein. A member of a the ZC3H13 protein family, ZC3H13 is reported to be an associated component of the WMM complex, a complex that mediates N6-methyladenosine (m6A) methylation of RNAs, a modification that plays a role in the efficiency of mRNA splicing and RNA processing. Synonyms for this target antigen include Xio, zinc finger CCCH domain-containing protein 13, and KIAA0853.