First Author | Sablin EP | Year | 2008 |
Journal | Proc Natl Acad Sci U S A | Volume | 105 |
Issue | 47 | Pages | 18390-5 |
PubMed ID | 19015525 | Mgi Jnum | J:360502 |
Mgi Id | MGI:7834582 | Doi | 10.1073/pnas.0808936105 |
Citation | Sablin EP, et al. (2008) The structure of corepressor Dax-1 bound to its target nuclear receptor LRH-1. Proc Natl Acad Sci U S A 105(47):18390-5 |
abstractText | The Dax-1 protein is an enigmatic nuclear receptor that lacks an expected DNA binding domain, yet functions as a potent corepressor of nuclear receptors. Here we report the structure of Dax-1 bound to one of its targets, liver receptor homolog 1 (LRH-1). Unexpectedly, Dax-1 binds to LRH-1 using a new module, a repressor helix built from a family conserved sequence motif, PCFXXLP. Mutations in this repressor helix that are linked with human endocrine disorders dissociate the complex and attenuate Dax-1 function. The structure of the Dax-1:LRH-1 complex provides the molecular mechanism for the function of Dax-1 as a potent transcriptional repressor. |