Two subpopulations of low density granulocytes (LDGs) were defined in terms of different gene expression patterns, transcriptional and epigenetic features as well as functions. This study provides insights into the mechanism of immune dysregulation and the vascular damage characteristic of lupus. Overall design: Transcriptomics and epigenetic assessment of lupus PBMCs, LDGs, autologous normal-density neutrophils (NDN) and healthy control (HC) neutrophils was performed by mRNA sequencing and assay for transposase-accessible chromatin sequencing. NET formation, chemotaxis, phagocytosis, degranulation, induction of endothelial dysfunction and release of oxidized nucleic acids were compared among subsets. This metadata sheet includes the 24 ATAC-Seq samples of this project.