» Articles » PMID: 12482977

LXXLL-related Motifs in Dax-1 Have Target Specificity for the Orphan Nuclear Receptors Ad4BP/SF-1 and LRH-1

Overview
Journal Mol Cell Biol
Specialty Cell Biology
Date 2002 Dec 17
PMID 12482977
Citations 41
Authors
Affiliations
Soon will be listed here.
Abstract

The orphan receptor Ad4BP/SF-1 (NR5A1) is a constitutive activator, and its activity is repressed by another orphan receptor, Dax-1 (NR0B1). In the present study, we investigated the molecular mechanisms underlying this repression by Dax-1. Yeast two-hybrid and transient-transfection assays confirmed the necessity of three LXXLL-related motifs in Dax-1 for interaction with and repression of Ad4BP/SF-1. In vitro pull-down experiments confirmed that Dax-1 interacts with Ad4BP/SF-1 and also with LRH-1 (NR5A2). The target specificity of the LXXLL-related motifs was indicated by the observations that Ad4BP/SF-1, ERalpha (NR3A1), LRH-1, ERR2 (NR3B2), and fly FTZ-F1 (NR5A3) interacted through their ligand binding domains with all the LXXLL-related motifs in Dax-1 whereas HNF4 (NR2A1) and RORalpha (NR1F1) did not. Transcriptional activities of the receptors whose DNA binding domains (DBDs) were replaced by the GAL4 DBD were repressed by Dax-1 to various levels, which correlated with the strength of interaction. Amino acid substitutions revealed that Ad4BP/SF-1 and LRH-1 preferentially interact with L(+1)XXLL-related motifs containing serine, tyrosine, serine, and threonine at positions -2, +2, +3, and +6, respectively. Taken together, our results indicate that the specificities of LXXLL-related motifs in Dax-1 based on their amino acid sequences play an important role in regulation of orphan receptors.

Citing Articles

Liver receptor homolog-1: structures, related diseases, and drug discovery.

Wu T, Lu Z, Yu H, Wu X, Liu Y, Xu Y Acta Pharmacol Sin. 2024; 45(8):1571-1581.

PMID: 38632319 PMC: 11272790. DOI: 10.1038/s41401-024-01276-x.


A novel variant of NR5A1, p.R350W implicates potential interactions with unknown co-factors or ligands.

Gau M, Suga R, Hijikata A, Kashimada A, Takagi M, Nakagawa R Front Endocrinol (Lausanne). 2023; 13:1033074.

PMID: 36743925 PMC: 9895113. DOI: 10.3389/fendo.2022.1033074.


Nuclear receptor subfamily 5 group A member 2 (NR5A2): role in health and diseases.

Sandhu N, Rana S, Meena K Mol Biol Rep. 2021; 48(12):8155-8170.

PMID: 34643922 DOI: 10.1007/s11033-021-06784-1.


Nonsense variant of NR0B1 causes hormone disorders associated with congenital adrenal hyperplasia.

Fan D, Li L, Zhang H Sci Rep. 2021; 11(1):16066.

PMID: 34373561 PMC: 8352982. DOI: 10.1038/s41598-021-95642-y.


C2H2-Type Zinc Finger Proteins: Evolutionarily Old and New Partners of the Nuclear Hormone Receptors.

Mackeh R, Marr A, Fadda A, Kino T Nucl Recept Signal. 2019; 15:1550762918801071.

PMID: 30718982 PMC: 6348741. DOI: 10.1177/1550762918801071.


References
1.
. A unified nomenclature system for the nuclear receptor superfamily. Cell. 1999; 97(2):161-3. DOI: 10.1016/s0092-8674(00)80726-6. View

2.
Nolte R, Wisely G, Westin S, Cobb J, Lambert M, Kurokawa R . Ligand binding and co-activator assembly of the peroxisome proliferator-activated receptor-gamma. Nature. 1998; 395(6698):137-43. DOI: 10.1038/25931. View

3.
James P, Halladay J, Craig E . Genomic libraries and a host strain designed for highly efficient two-hybrid selection in yeast. Genetics. 1996; 144(4):1425-36. PMC: 1207695. DOI: 10.1093/genetics/144.4.1425. View

4.
Boerboom D, Pilon N, Behdjani R, Silversides D, Sirois J . Expression and regulation of transcripts encoding two members of the NR5A nuclear receptor subfamily of orphan nuclear receptors, steroidogenic factor-1 and NR5A2, in equine ovarian cells during the ovulatory process. Endocrinology. 2000; 141(12):4647-56. DOI: 10.1210/endo.141.12.7808. View

5.
Lala D, Syka P, Lazarchik S, Mangelsdorf D, Parker K, HEYMAN R . Activation of the orphan nuclear receptor steroidogenic factor 1 by oxysterols. Proc Natl Acad Sci U S A. 1997; 94(10):4895-900. PMC: 24602. DOI: 10.1073/pnas.94.10.4895. View