. "The directed movement of a protein to a specific location in the endoplasmic reticulum." . . . "establishment of protein localization to endoplasmic reticulum" . "establishment of protein localisation to endoplasmic reticulum" . "establishment of protein localisation to ER" . "establishment of protein localization in endoplasmic reticulum" . "establishment of protein localization to ER" . . . . . .