Anti-vt antibodies enable researchers to detect and measure the vt antigen in biological samples. This target is a reported synonym of the UBN1 gene, which encodes ubinuclein 1. This protein is known to act as a novel regulator of senescence. The human version of vt has a canonical amino acid length of 1134 residues and a protein mass of 121.5 kilodaltons, although 2 isoforms have been identified. It is reported to be localized in the nucleus of cells and widely expressed in many tissue types. vt is a member of the Ubinuclein protein family.