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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 PDOC51376
DBB domain profile


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PURL: https://purl.expasy.org/prosite/documentation/PDOC51376

Description

The following proteins share a number of distinct parts, namely, ankyrin repeats (see <PDOC50088>), a coiled coil, and a stretch of approximately 140 amino acid residues upstream of the ankyrin repeats, which has been called the Dof/BCAP/BANK (DBB) domain [1,2]:

  • Drosophila Downstream-of-EGF receptor (Dof), a protein essential for the morphogenesis of both the mesoderm and the tracheae. It has been proposed to mediate the transmission of a signal from an activated receptor to other components of the cell, including the MAP kinase cascade.
  • Vertebrate BANK and BCAP proteins that function in B-cell signaling.

These proteins are involved in signaling; however, unlike Dof, BANK and BCAP are not implicated in FGF signaling but appear to have undergone rapid change during the course of evolution to acquire a novel function with the development of the immune system in higher vertebrates.

The DBB domain in both Dof and BCAP is required to mediate self-association in yeast cells, indicating that this domain may have a more general role in mediating protein-protein interactions [1].

The profile we developed covers the entire DBB domain.

Last update:

April 2008 / First entry.

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Technical section

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

DBB, PS51376; DBB domain profile  (MATRIX)


References

1AuthorsBattersby A. Csiszar A. Leptin M. Wilson R.
TitleIsolation of proteins that interact with the signal transduction molecule Dof and identification of a functional domain conserved between Dof and vertebrate BCAP.
SourceJ. Mol. Biol. 329:479-493(2003).
PubMed ID12767830

2AuthorsWilson R. Battersby A. Csiszar A. Vogelsang E. Leptin M.
TitleA functional domain of Dof that is required for fibroblast growth factor signaling.
SourceMol. Cell. Biol. 24:2263-2276(2004).
PubMed ID14993266



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