SplA/ryanodine receptor domain and SOCS box containing 2, or, SPSB2, is a human gene. Other names include: SPRY domain-containing SOCS box protein 2; Gene-rich cluster protein C9; SSB-2; GRCC9; SSB2. The encoded protein has an amino acid length of 263 and a mass of 28.6 kDa. Other isoforms may exist. SplA/ryanodine receptor domain and SOCS box containing 2 is a member of the SPSB family. This gene shares homology with other species, including: Mouse, Rat.