There are a number of ELISA Kits available for the measurement of synaptosomal-associated protein 91, another term for the human protein, synaptosome associated protein 91. Other synonyms may include: clathrin coat assembly protein AP180, 91 kDa synaptosomal-associated protein, assembly protein 180kDa, clathrin coat-associated protein AP180, synaptosomal-associated protein 91kDa homolog, synaptosome associated protein 91kDa, and AP180. It is encoded by the SNAP91 gene to yield a protein 907 amino acids in length and 92.5 kDa in size. However, there are up to 4 reported isoforms. The protein is categorized into the PICALM/SNAP91 family. Versions of synaptosomal-associated protein 91 are present in other organisms, including: Mouse, Rat, Frog.