DAP and systemic lupus erythematosus: A functional analysis of the 19 SLE-associated variants indicated that they all impacted transcription factor binding sites or are eQTLs affecting transcription of DAP1 in PBMCs, lymphoblastoid cell lines (LCLs), monocyte-derived macrophages (MDMs), or monocyte-derived dendritic cell (MDDCs) panels (Additional file 2: Fig. S3a-c).