Anti-synaptotagmin like 1 antibodies are used in the immunodetection of the protein encoded by the SYTL1 gene. In humans, the canonical protein has a reported length of 562 amino acid residues and a mass of 61.9 kDa. Its subcellular localization is in the cell membrane. Alternative splicing is reported to yield 2 different isoforms for this protein. It is reported to be highly expressed in bone marrow and lymphoid tissues. It is believed to play a role in vesicle trafficking (By similarity). Other names for this target antigen include NADPH oxidase-related, C2 domain-containing protein, exophilin-7, and synaptotagmin-like protein 1.