PROSITE logo
Black ribbon
We are deeply saddened by the passing of Amos Bairoch (1957–2025), the creator of PROSITE. We wish to dedicate our latest paper, published shortly before his death, to him. He will always be a source of inspiration to us.
Our deepest condolences go out to his family and friends, and to all those who had the privilege of working with him. Rest in peace, Amos. Your work will live on long after you are gone.
Amos Bairoch

PROSITE documentation PDOC50827
DDT domain profile


View entry in original PROSITE document format
View entry in raw text format (no links)
PURL: https://purl.expasy.org/prosite/documentation/PDOC50827

Description

The DDT has been named after the better characterized DNA-binding homeobox-containing proteins and the Different Transcription and chromatin remodeling factors in which it is found. It is a domain of about 60 amino acids which is exclusively associated with nuclear domains like AT-Hook (see <PDOC00306>), PHD finger (see <PDOC50016>), methyl-CpG-binding domain, bromodomain (see <PDOC00550>) and DNA-binding homeodomain (see <PDOC00027>).

The DDT domain is characterized by a number of conserved aromatic and charged residues and is predicted to consist of three α helices. A DNA-binding function for the DDT domain has been proposed [1].

Proteins known to contain a DDT domain are listed below:

  • Bromodomain PHD finger transcription factors (BPTFs) from Caenorhabditis elegans, Drosophila and human. The human protein FALZ or FAC1 is believed to play arole in Alzheimer's disease.
  • Chromatin remodeling factors of the BAZ (bromodomain adjacent to zinc finger proteins)-family from Caenorhabditis elegans, Drosophila and human. The human BAZ protein WSTF is implicated in Wiliams Syndrome, a complex developmental disorder with multisystemic defects.
  • Homeodomain-containing proteins from Arabidopsis thaliana.
  • Hypothetical PHD-domain-containing protein from Arabidopsis thaliana.

The profile we developed covers the entire DDT domain.

Note:

The DDT domain was first identified in the BAZ family as part of a larger LH (Leucine-rich Helical) domain [2].

Last update:

September 2003 / First entry.

-------------------------------------------------------------------------------


Technical section

PROSITE method (with tools and information) covered by this documentation:

DDT, PS50827; DDT domain profile  (MATRIX)


References

1AuthorsDoerks T. Copley R. Bork P.
TitleDDT -- a novel domain in different transcription and chromosome remodeling factors.
SourceTrends Biochem. Sci. 26:145-146(2001).
PubMed ID11246006

2AuthorsJones M.H. Hamana N. Nezu J.I. Shimane M.
TitleA novel family of bromodomain genes.
SourceGenomics 63:40-45(2000).
PubMed ID10662543
DOI10.1006/geno.1999.6071



PROSITE is copyrighted by the SIB Swiss Institute of Bioinformatics and distributed under the Creative Commons Attribution-NonCommercial-NoDerivatives (CC BY-NC-ND 4.0) License, see prosite_license.html.