PTTG3 is an alias for the gene, Pituitary tumor-transforming 3, pseudogene, in humans. Other names include: Putative pituitary tumor-transforming gene 3 protein; Securin-3; rcPTTG1; hPTTG3. The encoded protein has an amino acid length of 202 and a mass of 22.1 kDa. Other isoforms may exist. PTTG3 is a member of the Securin family. This gene shares homology with other species, including: Mouse.