Interestingly, a genetic study on CGAS of the Korean periodontitis has focused upon ten periodontitis genes (TENM2, LDLRAD4, SLC9C2, RASGRP4, MFSD1, IL4, NMUR2, GPR141, GLK, and A2BP1) identified as the potential candidate genes with genetic risk factors (see Table 1) (Hong et al. 2015). The gene discussed is IL4; the disease is periodontitis.