There are a number of ELISA Kits available for the measurement of SH3/ankyrin domain gene 3, another term for the human protein, SH3 and multiple ankyrin repeat domains 3. Other synonyms may include: SH3 and multiple ankyrin repeat domains protein 3, proline rich synapse associated protein 2, shank postsynaptic density protein, DEL22q13.3, PSAP2, SCZD15, and SPANK-2. It is encoded by the SHANK3 gene to yield a protein 1731 amino acids in length and 184.7 kDa in size. However, there are up to 2 reported isoforms. Versions of SH3/ankyrin domain gene 3 are present in other organisms, including: Mouse, Rat, Frog, Chicken.