passages.id: split_6_test_960_passage
passages.type: progene_text
passages.text: ANU1 , 3 and 4 were found to encode known factors Sec24p , Sec13p and Sec18p , respectively , all of which are involved in the formation or fusion of intracellular membrane vesicles of protein transport between the endoplasmic reticulum ( ER ) and the Golgi apparatus .