SSAT2 is an alias for the gene, Spermidine/spermine N1-acetyltransferase family member 2, in humans. Other names include: Diamine acetyltransferase 2; Spermidine/spermine N(1)-acetyltransferase 2; Thialysine N-epsilon-acetyltransferase; Diamine acetyltransferase 2 ; Polyamine N-acetyltransferase 2; diamine N-acetyltransferase 2. The encoded protein is an enzyme with an amino acid length of 170 and a mass of 19.2 kDa. SSAT2 is a member of the Acetyltransferase family. This gene shares homology with other species, including: Rat, Frog.