This domain, approximately 90 residues, is mainly found in DNA methyltransferase 1-associated protein 1 (DAMP1) that plays an important role in development and maintenace of genome integrity in various mammalia species [2,3]. It mainly consists of tandem repeats of three alpha-helices that are arranged in a helix-turn-helix motif and shows a structual similarity with SANT domain and Myb DNA-binding domain, indicating it contains a putative DNA binding site [1].

1: The SANT domain: a putative DNA-binding domain in the SWI-SNF and ADA complexes, the transcriptional co-repressor N-CoR and TFIIIB. Aasland R, Stewart AF, Gibson T; Trends Biochem Sci 1996;21:87-88. PMID:8882580

2: Dmap1 plays an essential role in the maintenance of genome integrity through the DNA repair process. Negishi M, Chiba T, Saraya A, Miyagi S and Iwama A; Genes Cells 2009:14(11),1347-1357. PMID:19845771

3: Distinct roles of DMAP1 in mouse development. Mohan KN, Ding F, Chaillet JR; Mol Cell Biol. 2011;31(9):1861-9. PMID:21383065