Anti-SNAP50 antibodies enable researchers to detect and measure the SNAP50 antigen in biological samples. This target is a reported synonym of the SNAPC3 gene, which encodes small nuclear RNA activating complex polypeptide 3. This protein is known to function in transcription by RNA polymerase II, among other biological roles. The human version of SNAP50 has a canonical amino acid length of 411 residues and a protein mass of 46.8 kilodaltons. It is reported to be localized in the nucleus of cells. SNAP50 is a member of the SNAPC3/SRD2 protein family.