التفاصيل البيبلوغرافية
| العنوان: |
Dog Steroidogenic Factor-1: Molecular cloning and analysis of epigenetic regulation. |
| المؤلفون: |
Asato SEKIYA, Ken TAKASAWA, Yoshikazu ARAI, Shidow TORISU, Koichiro NISHINO |
| المصدر: |
Journal of Veterinary Medical Science; 2020, Vol. 85 Issue 6, p681-689, 9p |
| مصطلحات موضوعية: |
P16 gene, EXONS (Genetics), AMINO acid residues, MOLECULAR cloning, METHYLATION kinetics, DOGS, BASE pairs, DNA methylation |
| مستخلص: |
Steroidogenic factor 1 (SF-1) is a nuclear receptor that is important in steroid hormone production, and adrenal and gonad development. The SF-1 gene is highly conserved among most vertebrates. However, dog SF-1 registered in public databases, such as CanFam3.1, lacks the 5' end compared to other mammals including mouse, human, bovine, and cat. Whether this defect is due to species differences or database error is unclear. Here, we determined the full-length dog SF-1 cDNA sequence and identified the missing 5' end sequence in the databases. The coding region of the dog SF-1 gene has 1,386 base pairs, and the protein has 461 amino acid residues. Sequence alignment analysis among vertebrates revealed that the 5' end sequence of dog SF-1 cDNA is highly conserved compared to other vertebrates. The genomic position of the first exon was determined, and its promoter region sequence was analyzed. The DNA methylation state at the basal promoter and the expression of dog SF-1 in steroidogenic tissues and nonsteroidogenic cells were examined. CpG sites at the basal promoter displayed methylation kinetics inversely correlated with gene expression. The promoter was hypomethylated and hypermethylated in SF-1 expressing and non-SF-1 expressing tissues, respectively. In conclusion, we identified the true full sequence of dog SF-1 cDNA and determined the genome sequence around the first exon. The gene is under the control of epigenetic regulation, such as DNA methylation, at the promoter. [ABSTRACT FROM AUTHOR] |
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