The AreA nitrogen regulatory protein proteins (which are GATA type transcription factors) share a highly conserved N terminus and Pfam:PF00320 at the C terminus.

1: Deletion of the N-terminal region of the AREA protein is correlated with a derepressed phenotype with respect to nitrogen metabolite repression. Lamb HK, Dodds AL, Swatman DR, Cairns E, Hawkins AR; J Bacteriol 1997;179:6649-6656. PMID:9352912

2: Mutational analysis reveals dispensability of the N-terminal region of the Aspergillus transcription factor mediating nitrogen metabolite repression. Langdon T, Sheerins A, Ravagnani A, Gielkens M, Caddick MX, Arst HN Jr; Mol Microbiol 1995;17:877-888. PMID:8596437