Systemwide effects of ER intracellular membrane contact site disturbance in primary endothelial cells ScienceDirect VAPA sgRNA CRISPR Cas9 All in One Lentivector set (Human), Accn.No.: NM_003574.6 VirS, an OmpR PhoB subfamily response regulator, is required for activation of vapA gene expression in Rhodococcus equi BMC Microbiology Springer Nature Link VAP A intrinsically disordered regions enable versatile tethering at membrane contact sites: Developmental Cell