Structural and functional studies of the VAPB PTPIP51 ER mitochondria tethering proteins in neurodegenerative diseases Acta Neuropathologica Communications Springer Nature Link VAP A intrinsically disordered regions enable versatile tethering at membrane contact sites: Developmental Cell The ER Contact Proteins VAPA B Interact with Multiple Autophagy Proteins to Modulate Autophagosome Biogenesis ScienceDirect Figure 2 from OSBP Related Protein Family in Lipid Transport Over Membrane Contact Sites Semantic Scholar VAP B Recombinant Protein Antigen NBP1 89112PEP: Novus Biologicals