Dentinogenesis imperfecta 1 with or without progressive hearing loss is associated with distinct mutations in DSPP
| العنوان: | Dentinogenesis imperfecta 1 with or without progressive hearing loss is associated with distinct mutations in DSPP |
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| المؤلفون: | Landian Hu, Zhu Chen, Lei Bu, Xueming Chou, Jun J. Yang, Gang Fu, Xiangyin Kong, Guoping Zhao, Wenjuan Yuan, Ying Wang, Chuan Yu, Zhengmin Wang, Wei Huang, Yaozhou Shi, Bin Han, Meiqian Qian, Shangxi Xiao, Jing Liu |
| المصدر: | Nature Genetics. 27:201-204 |
| بيانات النشر: | Springer Science and Business Media LLC, 2001. |
| سنة النشر: | 2001 |
| مصطلحات موضوعية: | Genetics, Dentinogenesis imperfecta, Dentin dysplasia, Biology, medicine.disease, Dentin phosphoprotein, stomatognathic diseases, Exon, stomatognathic system, Dentin sialophosphoprotein, medicine, Missense mutation, Dentin mineralization, Dentin sialoprotein |
| الوصف: | Dentinogenesis imperfecta 1 (DGI1, MIM 125490) is an autosomal dominant dental disease characterized by abnormal dentin production and mineralization. The DGI1 locus was recently refined to a 2-Mb interval on 4q21 (ref. 1). Here we study three Chinese families carrying DGI1. We find that the affected individuals of two families also presented with progressive sensorineural high-frequency hearing loss (gene DFNA39). We identified three disease-specific mutations within the dentin sialophosphoprotein gene (DSPP) in these three families. We detected a G→A transition at the donor-splicing site of intron 3 in one family without DFNA39, a mutation predicted to result in the skipping of exon 3. In two other families affected with both DGI1 and DFNA39, however, we identified two independent nucleotide transversions in exons 2 and 3 of DSPP, respectively, that cause missense mutations of two adjacent amino-acid residues in the predicted transmembrane region of the protein. Moreover, transcripts of DSPP previously reported to be expressed specifically in teeth2 are also detected in the inner ear of mice. We have thus demonstrated for the first time that distinct mutations in DSPP are responsible for the clinical manifestations of DGI1 with or without DFNA39. |
| تدمد: | 1546-1718 1061-4036 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::58de9b548a3f74eed06d98da38340c8d https://doi.org/10.1038/84848 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........58de9b548a3f74eed06d98da38340c8d |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15461718 10614036 |
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