Anti-C4orf29 antibodies enable researchers to detect and measure the C4orf29 antigen in biological samples. This target is a reported synonym of the ABHD18 gene, which encodes abhydrolase domain containing 18. The human version of C4orf29 has a canonical amino acid length of 414 residues and a protein mass of 47 kilodaltons, although 4 isoforms have been identified. It is reported to be a secreted protein that is widely expressed in many tissue types. C4orf29 is a member of the AB hydrolase protein superfamily.