Tissue Specificity | Isoform 1 is expressed in hematopoietic lineages with a strong expression in CD4 and CD8 T-lymphocytes. It is also widely expressed in nonhematopoietic tissues. Isoform 5 is expressed only in nonhematopoietic tissues. Isoform 4 is expressed in pancreatic alpha cells. |
Post Translational Modifications | Isoform 1 is highly susceptible to proteolytic degradation and is stabilized by the interaction with RAB27A. |
Function | Isoform 1 acts as a RAB27A effector protein and plays a role in cytotoxic granule exocytosis in lymphocytes. It is required for cytotoxic granule docking at the immunologic synapse. Isoform 4 binds phosphatidylserine (PS) and phosphatidylinositol-4,5-bisphosphate (PIP2) and promotes the recruitment of glucagon-containing granules to the cell membrane in pancreatic alpha cells. Binding to PS is inhibited by Ca(2+) while binding to PIP2 is Ca(2+) insensitive. |
Protein Name | Synaptotagmin-Like Protein 2Breast Cancer-Associated Antigen Sga-72mExophilin-4 |
Database Links | Reactome: R-HSA-9824585 |
Cellular Localisation | Isoform 1: CytoplasmCell MembraneRecruited On Vesicular Structures In Cytotoxic T-Lymphocytes (Ctl) By Rab27aIsoform 4: Cell MembraneIn The Pancreatic Alpha Cells Distributed In Both Peripheral And Anterior RegionsLocalizes On The Glucagon Granules In The Cell Periphery |
Alternative ELISA Names | Synaptotagmin-Like Protein 2 ELISA kitBreast Cancer-Associated Antigen Sga-72m ELISA kitExophilin-4 ELISA kitSYTL2 ELISA kitKIAA1597 ELISA kitSGA72M ELISA kitSLP2 ELISA kitSLP2A ELISA kit |
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Information sourced from Uniprot.org