Anti-PREP1 antibodies enable researchers to detect and measure the PREP1 antigen in biological samples. This target is a reported synonym of the PKNOX1 gene, which encodes PBX/knotted 1 homeobox 1. This protein is known to function in angiogenesis and eye development, among other biological roles. The human version of PREP1 has a canonical amino acid length of 436 residues and a protein mass of 47.6 kilodaltons, although 2 isoforms have been identified. It is reported to be localized in the nucleus of cells and notably expressed in the placenta and testis. This target antigen may also be known as pkonx1c. ELISA is a widely used application for the PREP1 antibodies listed below. In addition, Western Blot is also a common application.