Anti-Synaptotagmin IX antibodies enable researchers to detect and measure the Synaptotagmin IX antigen in biological samples. This target is a reported synonym of the SYT9 gene, which encodes synaptotagmin 9. This protein is suspected to be involved in Ca(2+)-dependent exocytosis of secretory vesicles through Ca(2+) and phospholipid binding to the C2 domain or may serve as Ca(2+) sensors in the process of vesicular trafficking and exocytosis. The human version of Synaptotagmin IX has a canonical amino acid length of 491 residues and a protein mass of 56.2 kilodaltons. It is reported to be localized in the cytoplasmic vesicles of cells. This target antigen may also be known as synaptotagmin IX. These Synaptotagmin IX antibodies are widely used in Western Blot experiments, among other applications.