PLCL2 and rheumatoid arthritis: In the data of 28 RA cases and 18 controls, we also found that the expression levels of PLCL2, which was not detected in SMR analysis, in PBMCs were differentially expressed (P = 2.89 × 10− 8) and were associated with the RA GRS (P = 7.87 × 10− 3).