DEK is a chromatin associated protein that is linked with cancers and autoimmune disease. This domain is found at the C terminal of DEK and is of clinical importance since it can reverse the characteristic abnormal DNA-mutagen sensitivity in fibroblasts from ataxia-telangiectasia (A-T) patients [3]. The structure of this domain shows it to be homologous to the E2F/DP transcription factor family [1]. This domain is also found in chitin synthase proteins like Swiss:Q8TF96, and in protein phosphastases such as Swiss:Q6NN85.

1: Solution NMR structure of the C-terminal domain of the human protein DEK. Devany M, Kotharu NP, Matsuo H; Protein Sci. 2004;13:2252-2259. PMID:15238633

2: The human DEK proto-oncogene is a senescence inhibitor and an upregulated target of high-risk human papillomavirus E7. Wise-Draper TM, Allen HV, Thobe MN, Jones EE, Habash KB, Munger K, Wells SI; J Virol. 2005;79:14309-14317. PMID:16254365

3: Expression cloning of multiple human cDNAs that complement the phenotypic defects of ataxia-telangiectasia group D fibroblasts. Meyn MS, Lu-Kuo JM, Herzing LB; Am J Hum Genet. 1993;53:1206-1216. PMID:7504406