Bromodomain-containing protein 7 (BRD7), also known as celtix-1, is a subunit of the SWI/SNF complex specific for polybromo-associated BRG1-associated factor (PBAF), which was first identified as a tumor suppressor in nasopharyngeal carcinoma cells in 2000 (29). Here, SMARCA1 is linked to nasopharyngeal carcinoma.