passages.id: split_8_test_2318_passage
passages.type: progene_text
passages.text: We have used a site - specific photo - cross - linking approach to identify direct interactions between clathrin adaptor protein ( AP ) 1 complexes and small GTPases of the ADP-ribosylation factor ( ARF ) family and to explore the specificity of this interaction on immature secretory granule ( ISG ) membranes .