ISDA: 3F5C

Deposition Date 2008-11-03

Release Date 2008-12-23

Last Version Date 2023-09-06

Entry Detail

PDB ID:

3F5C

Keywords:

TRANSCRIPTION

Title:

Structure of Dax-1:LRH-1 complex

Biological Source:

Source Organism(s):

Mus musculus (Taxon ID: 10090)

Expression System(s):

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

3.00 Å

R-Value Free:

0.27

R-Value Work:

0.22

R-Value Observed:

0.22

Space Group:

P 43

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Nuclear receptor subfamily 5 group A member 2
Gene (Uniprot):Nr5a2
Mutagens:I525L
Chain IDs:A
Chain Length:248
Number of Molecules:1
Biological Source:Mus musculus

UniProt ID:P45448 Pfam ID:PF00104

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Nuclear receptor subfamily 0 group B member 1
Gene (Uniprot):Nr0b1
Chain IDs:B, C
Chain Length:268
Number of Molecules:2
Biological Source:Mus musculus

UniProt ID:Q61066 Pfam ID:PF14046, PF00104

Ligand Molecules

Primary Citation

The structure of corepressor Dax-1 bound to its target nuclear receptor LRH-1.

Sablin, E.P, Woods, A, Krylova, I.N, Hwang, P, Ingraham, H.A, Fletterick, R.J.Show

Proc.Natl.Acad.Sci.USA 105 18390 18395 (2008)

PMID: 19015525 DOI: 10.1073/pnas.0808936105

Abstact

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.

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Primary Citation of related structures

Abstact

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