REACTOME_NEF_MEDIATED_DOWNREGULATION_OF_MHC_CLASS_I_COMPLEX_CELL_SURFACE_EXPRESSION https://www.gsea-msigdb.org/gsea/msigdb/human/geneset/REACTOME_NEF_MEDIATED_DOWNREGULATION_OF_MHC_CLASS_I_COMPLEX_CELL_SURFACE_EXPRESSION AP1B1 AP1G1 AP1M1 AP1M2 AP1S1 AP1S2 AP1S3 B2M HLA-A PACS1