Members of the ZAS family, such as ZAS3 (HIVEP3), are large proteins that contain a ZAS domain, a modular protein structure consisting of a pair of C2H2 zinc fingers with an acidic-rich region and a serine/threonine -rich sequence. These proteins bind specific DNA sequences, including the kappa-B motif (GGGACTTTCC), in the promoters and enhancer regions of several genes and viruses, including human immunodeficiency virus (HIV). ZAS genes span more than 150 kb and contain at least 10 exons, one of which is longer than 5.5 kb (Allen and Wu, 2004).[supplied by OMIM][6]
^"Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^"Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^Hicar MD, Liu Y, Allen CE, Wu LC (January 2001). "Structure of the human zinc finger protein HIVEP3: molecular cloning, expression, exon-intron structure, and comparison with paralogous genes HIVEP1 and HIVEP2". Genomics. 71 (1): 89–100. doi:10.1006/geno.2000.6425. PMID11161801.
Hong JW, Wu LC (January 2005). "Structural characterization of the gene encoding the large zinc finger protein ZAS3: implication to the origin of multiple promoters in eukaryotic genes". Biochimica et Biophysica Acta (BBA) - Gene Structure and Expression. 1681 (2–3): 74–87. doi:10.1016/j.bbaexp.2004.10.004. PMID15627499.