The findings indicated that the gene GATA2 in the RA dataset and the genes (SLC25A4, TCIRG1), PIGA, SLC16A7, TCIRG1, UQCRQ, KCNN4, and UQCRQ) exhibited a moderate positive linear correlation (r > 0.3, P < 0.05) (Supplementary Fig. S2A, B). Here, PIGA is linked to rheumatoid arthritis.