Anti-XT1 antibodies enable researchers to detect and measure the XT1 antigen in biological samples. This target is a reported synonym of the XYLT1 gene, which encodes xylosyltransferase 1. This protein is known to function in metabolic processes, among other biological roles. The human version of XT1 has a canonical amino acid length of 959 residues and a protein mass of 107.6 kilodaltons. It is reported to be localized in the Golgi and is secreted of cells and widely expressed in many tissue types. XT1 is a member of the Glycosyltransferase 14 protein family.