Elucidation of the mechanism of biomineralization with acidic phosphoprotein from molecular evolution studies
从分子进化研究中阐明酸性磷蛋白的生物矿化机制
基本信息
- 批准号:21390491
- 负责人:
- 金额:$ 11.07万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (B)
- 财政年份:2009
- 资助国家:日本
- 起止时间:2009 至 2011
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Dentin matrix protein 1(DMP1), which is a one of the acidic phosphoproteins composed of the bone. Molecular evolution study of DMP1 indicated that phosphorylation by casein kinase(CK) might be related to the DMP1 function. Highly phosphorylated DMP1 by CK has a large number of acidic domains. Because of its highly acidic nature, it is supposed that negative-charged DMP1 can bind to calcium, thereby regulating matrix mineralization. In this study, we found that Ser residues of DMP1 were phosphorylated in the bone and cultured osteoblast and that osteoblast-derived CK might phosphorylate DMP1. Culture experiment with CK inhibitor indicated that mineralization was controlled by inhibition of the CK activity. Therefore, it was supposed when DMP1 was phosphorylated by CK, and did negative-charged DMP1 promoted mineralization.
牙本质基质蛋白1(DMP1),是组成骨骼的酸性磷蛋白之一。 DMP1的分子进化研究表明酪蛋白激酶(CK)的磷酸化可能与DMP1的功能有关。 CK 高度磷酸化的 DMP1 具有大量酸性结构域。由于其高酸性,人们认为带负电荷的 DMP1 可以与钙结合,从而调节基质矿化。在这项研究中,我们发现DMP1的Ser残基在骨和培养的成骨细胞中被磷酸化,并且成骨细胞来源的CK可能使DMP1磷酸化。 CK抑制剂的培养实验表明矿化是通过抑制CK活性来控制的。因此,推测当DMP1被CK磷酸化时,带负电荷的DMP1是否促进了矿化。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Role of SIBLINGS on Matrix Mineralization : Focus on Dentin Matrix Protein 1 (DMP1)
SIBLINGS 对基质矿化的作用:关注牙本质基质蛋白 1 (DMP1)
- DOI:
- 发表时间:2012
- 期刊:
- 影响因子:0
- 作者:Tada KI;Kawahara KI;Matsushita S;Masujima T;Toyosawa S
- 通讯作者:Toyosawa S
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TOYOSAWA Satoru其他文献
TOYOSAWA Satoru的其他文献
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{{ truncateString('TOYOSAWA Satoru', 18)}}的其他基金
Ultramicrostructural analysis of biomineralization processes of DMP1
DMP1生物矿化过程的超微结构分析
- 批准号:
24390409 - 财政年份:2012
- 资助金额:
$ 11.07万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Trial research of fibrous dysplasia model transplanted with GNAS1 mutant cells
GNAS1突变细胞移植纤维异常增殖症模型的试验研究
- 批准号:
23659877 - 财政年份:2011
- 资助金额:
$ 11.07万 - 项目类别:
Grant-in-Aid for Challenging Exploratory Research
Produdion of transgenic mice and functional analysis ofosteaytesusingcis-regulatory regions
转基因小鼠的产生及顺式调控区骨干细胞的功能分析
- 批准号:
17390484 - 财政年份:2005
- 资助金额:
$ 11.07万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Functional Analysis of Dentin Matrix Protein 1 (DMP1) and Regulation Analysis of their Expression during Fracture Healing.
牙本质基质蛋白 1 (DMP1) 的功能分析及其在骨折愈合过程中的表达调控分析。
- 批准号:
15591930 - 财政年份:2003
- 资助金额:
$ 11.07万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Functional analysis of osteocyte-specific acidic phosphoprotein by gene transfection
基因转染对骨细胞特异性酸性磷蛋白的功能分析
- 批准号:
13671898 - 财政年份:2001
- 资助金额:
$ 11.07万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Molecular mechanism of abnormal dentin calcification in dentinogenesis imperfecta
牙本质发育不全牙本质钙化异常的分子机制
- 批准号:
11671800 - 财政年份:1999
- 资助金额:
$ 11.07万 - 项目类别:
Grant-in-Aid for Scientific Research (C)