This domain is found in the aflatoxin regulatory protein (AflR) which is involved in the regulation of the biosynthesis of aflatoxin in the fungal genus Aspergillus [1]. It occurs together with the fungal Zn(2)-Cys(6) binuclear cluster domain (Pfam:PF00172).

1: Regulation of aflR and its product, AflR, associated with aflatoxin biosynthesis. Liu BH, Chu FS; Appl Environ Microbiol 1998;64:3718-3723. PMID:9758790