| Tissue Specificity | Expressed in all tissues and tumor cell lines examined. |
| Post Translational Modifications | Glycosylated. Phosphorylated predominantly on Ser residues. |
| Function | Plays a role in mediating store-operated Ca(2+) entry (SOCE), a Ca(2+) influx following depletion of intracellular Ca(2+) stores. Functions as a highly sensitive Ca(2+) sensor in the endoplasmic reticulum which activates both store-operated and store-independent Ca(2+)-influx. Regulates basal cytosolic and endoplasmic reticulum Ca(2+) concentrations. Upon mild variations of the endoplasmic reticulum Ca(2+) concentration, translocates from the endoplasmic reticulum to the plasma membrane where it probably activates the Ca(2+) release-activated Ca(2+) (CRAC) channels ORAI1, ORAI2 and ORAI3. May inhibit STIM1-mediated Ca(2+) influx. |
| Peptide Name | Stromal Interaction Molecule 2 |
| Cellular Localisation | Endoplasmic Reticulum MembraneSingle-Pass Type I Membrane ProteinDynamically Translocates From A Uniform Endoplasmic Reticulum Distribution To Punctual Endoplasmic Reticulum-Plasma Membrane Junctions In Response To Decrease In Endoplasmic Reticulum Ca(2+) Concentration |
| Alternative Peptide Names | Stromal Interaction Molecule 2 proteinSTIM2 proteinKIAA1482 protein |
Information sourced from Uniprot.org
