According to the European Alliance of Associations for Rheumatology (EULAR) and the American College of Rheumatology (ACR), classification criteria for SLE include positive ANA (titer of 1:80 or higher), evidence of at least one clinical feature such as joint involvement, and a score of 10 or more, according to the EULAR/ACR classification criteria as listed in Table 1. This evidence concerns the gene BTG3 and systemic lupus erythematosus.