UniProt ID: Q7SZQ7 |
FUNCTION: Endoplasmic reticulum cargo receptor that mediates the export of lipoproteins by recruiting cargos into COPII vesicles to facilitate their secretion. Acts as a cargo receptor for lipoproteins bearing both APOB and APOA1, thereby regulating lipoprotein delivery and the maintenance of lipid homeostasis. {ECO:0000250|UniProtKB:O15260}. SUBCELLULAR LOCATION: Endoplasmic reticulum membrane {ECO:0000250|UniProtKB:O15260}; Multi-pass membrane protein {ECO:0000255}. Endoplasmic reticulum-Golgi intermediate compartment membrane {ECO:0000250|UniProtKB:O15260}; Multi-pass membrane protein {ECO:0000255}. Golgi apparatus membrane {ECO:0000250|UniProtKB:O15260}; Multi-pass membrane protein {ECO:0000255}. Note=Cycles between the endoplasmic reticulum and the Golgi. {ECO:0000250|UniProtKB:O15260}. DOMAIN: The di-lysine motif confers endoplasmic reticulum localization for type I membrane proteins. {ECO:0000250|UniProtKB:O15260}. SIMILARITY: Belongs to the SURF4 family. {ECO:0000305}. |
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