PVRIG and Alzheimer disease: Similarly, in the PILRA locus (previously ZCWPW1), we identified AD risk enhancers shared by AP4M1, PILRA, PILRB, and ZCWPW1 in monocytes, and by AP4M1, MCM7, PILRA, PILRB, PVRIG, and STAG3 in macrophages.