The following additional genes have been associated with sarcoidosis through functional or other experimental studies: PLCL1, PPARG, CD19. Indirect evidence of some involvement in the pathogenesis of sarcoidosis is available for PUS10 and ESYT2. The following additional genes have been involved in immune (dys)regulation: RNF215, RPS6KA4, LAT, UBASH3A, HOMER2, SUMO2P (indirect evidence). Here, RPS6KA4 is linked to sarcoidosis.