Cell membrane; Peripheral membrane protein. Cytoplasm, cytosol. Nucleus. Note=In resting conditions, localizes at the ce
ll membrane as a peripheral membrane protein by binding to phosphatidylinositol 4,5-bisphosphate (PtdIns(4,5)P2) (PubMed
:30827685). Localization at the cell membrane is required to limit the recognition of self-DNA (PubMed:30827685). Follow
ing detection of double-stranded DNA (dsDNA), released from the cell membrane into the cytosol in order to signal (PubMe
d:30827685). Upon transfection with dsDNA forms punctate structures that co-localize with DNA and Beclin-1 (BECN1) (PubM
ed:26048138). Phosphorylation at Tyr-215 promotes cytosolic retention; translocates into the nucleus following dephospho
rylation (PubMed:30356214).
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