First Author | Bae DS | Year | 1996 |
Journal | Endocrinology | Volume | 137 |
Issue | 9 | Pages | 3921-7 |
PubMed ID | 8756567 | Mgi Jnum | J:35232 |
Mgi Id | MGI:82684 | Doi | 10.1210/endo.137.9.8756567 |
Citation | Bae DS, et al. (1996) Characterization of the mouse DAX-1 gene reveals evolutionary conservation of a unique amino-terminal motif and widespread expression in mouse tissue. Endocrinology 137(9):3921-7 |
abstractText | The human genetic disorder adrenal hypoplasia congenita with hypogonadotropic hypogonadism results from mutations in the recently isolated DAX-1 gene, a member of the nuclear hormone receptor superfamily. To study the role of DAX-1 in adrenal development and activation of the hypothalamic pituitary-gonadal axis, animal model systems will be essential. Here, we report the isolation and characterization of the mouse DAX-1 gene and its tissue-specific pattern of expression. The mouse DAX-1 gene codes for a 472-amino acid protein, with 75% overall nucleotide sequence homology to its human homolog. The 3.5 amino-terminal repeats of a unique motif with probable DNA-binding activity have been conserved between mouse and human, although highest conservation in the DAX-1 peptide exists in the carboxy-terminal ligand-binding domain. The DAX-1 gene remains X-linked in the mouse, consistent with its potential role in sex determination. We have developed a sensitive reverse transcription-PCR assay that detects DAX-1 messenger RNA in the central nervous system, pituitary, lung, heart, spleen, kidney, and thymus in addition to the adrenal and testis DAX-1 expression noted for the human DAX-1 gene. Future studies using mouse models of altered DAX-1 expression will be critical in defining the role of this factor in tissue- and development-specific gene regulation. |