| http://purl.uniprot.org/citations/9322952 | http://www.w3.org/1999/02/22-rdf-syntax-ns#type | http://purl.uniprot.org/core/Journal_Citation |
| http://purl.uniprot.org/citations/9322952 | http://www.w3.org/2000/01/rdf-schema#comment | "Nuclear receptors, such as those for androgens, estrogens, and progesterones, control many reproductive processes. Proteins with structures similar to these receptors, but for which ligands have not yet been identified, have been termed orphan nuclear receptors. One of these orphans, germ cell nuclear factor (GCNF), has been shown to be germ cell specific in the adult and, therefore, may also participate in the regulation of reproductive functions. In this paper, we examine more closely the expression patterns of GCNF in germ cells to begin to define spatio-temporal domains of its activity. In situ hybridization showed that GCNF messenger RNA (mRNA) is lacking in the testis of hypogonadal mutant mice, which lack developed spermatids, but is present in the wild-type testis. Thus, GCNF is, indeed, germ cell specific in the adult male. Quantitation of the specific in situ hybridization signal in wild-type testis reveals that GCNF mRNA is most abundant in stage VII round spermatids. Similarly, Northern analysis and specific in situ hybridization show that GCNF expression first occurs in testis of 20-day-old mice, when round spermatids first emerge. Therefore, in the male, GCNF expression occurs postmeiotically and may participate in the morphological changes of the maturing spermatids. In contrast, female expression of GCNF is shown in growing oocytes that have not completed the first meiotic division. Thus, GCNF in the female is expressed before the completion of meiosis. Finally, the nature of the two different mRNAs that hybridize to the GCNF complementary DNA was studied. Although both messages contain the DNA binding domain, only the larger message is recognized by a probe from the extreme 3' untranslated region. In situ hybridization with these differential probes demonstrates that both messages are present in growing oocytes. In addition, the coding region and portions of the 3' untranslated region of the GCNF complementary DNA are conserved in the rat."xsd:string |
| http://purl.uniprot.org/citations/9322952 | http://purl.org/dc/terms/identifier | "doi:10.1210/endo.138.10.5444"xsd:string |
| http://purl.uniprot.org/citations/9322952 | http://purl.uniprot.org/core/author | "Cooney A.J."xsd:string |
| http://purl.uniprot.org/citations/9322952 | http://purl.uniprot.org/core/author | "Katz D."xsd:string |
| http://purl.uniprot.org/citations/9322952 | http://purl.uniprot.org/core/author | "Niederberger C."xsd:string |
| http://purl.uniprot.org/citations/9322952 | http://purl.uniprot.org/core/author | "Slaughter G.R."xsd:string |
| http://purl.uniprot.org/citations/9322952 | http://purl.uniprot.org/core/date | "1997"xsd:gYear |
| http://purl.uniprot.org/citations/9322952 | http://purl.uniprot.org/core/name | "Endocrinology"xsd:string |
| http://purl.uniprot.org/citations/9322952 | http://purl.uniprot.org/core/pages | "4364-4372"xsd:string |
| http://purl.uniprot.org/citations/9322952 | http://purl.uniprot.org/core/title | "Characterization of germ cell-specific expression of the orphan nuclear receptor, germ cell nuclear factor."xsd:string |
| http://purl.uniprot.org/citations/9322952 | http://purl.uniprot.org/core/volume | "138"xsd:string |
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