Implication of tubby proteins as transcription factors by structure-based functional analysis.
Boggon, T.J., Shan, W.S., Santagata, S., Myers, S.C., Shapiro, L.(1999) Science 286: 2119-2125
- PubMed: 10591637
- DOI: https://doi.org/10.1126/science.286.5447.2119
- Primary Citation of Related Structures:
1C8Z - PubMed Abstract:
Tubby-like proteins (TULPs) are found in a broad range of multicellular organisms. In mammals, genetic mutation of tubby or other TULPs can result in one or more of three disease phenotypes: obesity (from which the name "tubby" is derived), retinal degeneration, and hearing loss. These disease phenotypes indicate a vital role for tubby proteins; however, no biochemical function has yet been ascribed to any member of this protein family. A structure-directed approach was employed to investigate the biological function of these proteins. The crystal structure of the core domain from mouse tubby was determined at a resolution of 1.9 angstroms. From primarily structural clues, experiments were devised, the results of which suggest that TULPs are a unique family of bipartite transcription factors.
Organizational Affiliation:
Structural Biology Program, Department of Physiology and Biophysics, Ruttenberg Cancer Center, Mount Sinai School of Medicine of New York University, New York, NY 10029, USA.