Provided below are ELISA kits targeting small ubiquitin like modifier 3, a human protein encoded by SUMO3. This protein is 103 amino acids long, with a mass of 11.6 kDa, and is a member of the Ubiquitin family, SUMO subfamily. 2 isoforms have been identified. This is reported to be a cytoplasmic and nuclear protein. Other alias names for this protein include: small ubiquitin-related modifier 3, SMT3 suppressor of mif two 3 homolog 1, SMT3 suppressor of mif two 3 homolog 3, ubiquitin-like protein SMT3B, SMT3H1, and SUMO-3.