VAP A intrinsically disordered regions enable versatile tethering at membrane contact sites ScienceDirect Cholesterol sensor ORP1L contacts the ER protein VAP to control Rab7RILPp150Glued and late endosome positioning Journal of Cell Biology Rockefeller University Press Figure 2 from OSBP Related Protein Family in Lipid Transport Over Membrane Contact Sites Semantic Scholar Structural and functional studies of the VAPB PTPIP51 ER mitochondria tethering proteins in neurodegenerative diseases Acta Neuropathologica Communications Springer Nature Link