| First Author | Zilz A | Year | 2004 |
| Journal | Mol Reprod Dev | Volume | 67 |
| Issue | 1 | Pages | 55-64 |
| PubMed ID | 14648874 | Mgi Jnum | J:87824 |
| Mgi Id | MGI:3028286 | Doi | 10.1002/mrd.20006 |
| Citation | Zilz A, et al. (2004) A binding site for germ cell nuclear factor within c-mos regulatory sequences. Mol Reprod Dev 67(1):55-64 |
| abstractText | The proto-oncogene c-mos is specifically expressed in male and female germ cells. Previous studies have shown that the orphan nuclear receptor chicken ovalbumin upstream promoter transcription factor (COUP-TF) contributes to the repression of c-mos in somatic cells by binding to an inverted hexamer repeat within the c-mos regulatory region. In the present study, we demonstrate that another nuclear receptor superfamily member, germ cell nuclear factor (GCNF), binds to a sequence overlapping the c-mos COUP-TF binding site. Electrophoretic mobility shift assays with recombinant GCNF and both wild-type and mutant c-mos oligonucleotides demonstrated the binding of GCNF to an extended half site, CCAAGTTCA, which overlaps the first hexamer of the COUP-TF binding site. Transient transfection assays in NIH 3T3 cells further demonstrated that GCNF fused to a VP16 activation domain stimulated transcription from reporter constructs containing the c-mos GCNF binding site. Since GCNF is expressed in male and female germ cells at the same stages of development at which c-mos is transcribed, these results suggest that GCNF may serve as a regulator of c-mos transcription. Mol. Reprod. Dev. 67: 55-64, 2004. |
