Ready-to-use ELISA kits are available for the detection of HPA2, an alias of the protein, heparanase 2 (inactive). The official gene symbol is HPSE2. The protein, with a mass of 66.6 kDa and length of 592 residues, is reported to be secreted. It is a member of the Glycosyl hydrolase 79 family and may be known by other names, including: UFS1, UFS, HPA2, heparanase-like protein, heparanase 3, and inactive heparanase-2.