Comprehensive mutational screening of genes maintaining the glycine concentrations in the central nervous system
维持中枢神经系统甘氨酸浓度的基因的全面突变筛选
基本信息
- 批准号:17591067
- 负责人:
- 金额:$ 2.24万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (C)
- 财政年份:2005
- 资助国家:日本
- 起止时间:2005 至 2006
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
We have screened 120 families with elevated glycine concentration in plasma and/or cerebrospinal fluids. By the previous screening of GLDC and AMT genes, we identified the causative mutations in 70% of affected families. The purpose of this study is to perform the mutational screening of other candidate gene in the rest of the 35 families. As the candidate genes, which-affect the extracellular glycine concentrations we selected five genes, the GCSH, DLD, LPT, GLYT1, and GLYT2 genes. The GLDC, AMT, and DLD genes encode enzymes which involved in the glycine metabolism while GLYT1 and GLYT2 genes encode specific transporters of glycine. In the GCSH gene, we have identified a base change at the splicing acceptor consensus sequence, AT, in intron 4. No GCSH mutation was detected in other cases. The AT was substituted into GT, which is supposed to abolish the splicing function of this intron. The patients was given a diagnosis as having transient hyperglycinemia. The other mutation identified was missense mutation in LPT gene, which resulted in amino acid substitution form arginine to glycine. The arginine residue is highly conserved among the other spices, suggesting the evolutional importance. No other mutation have been detected in this series of the mutational screening. We concluded that hyperglycinemia can be caused by the other genes than GLDC or AMT.
我们已经筛选了120个血浆和/或脑脊液中甘氨酸浓度升高的家庭。通过先前对GLDC和AMT基因的筛查,我们确定了70%的受影响家庭的因果突变。这项研究的目的是在其余35个家庭中对其他候选基因进行突变筛查。作为候选基因,影响细胞外甘氨酸浓度,我们选择了五个基因,即GCSH,DLD,LPT,Glyt1和Glyt2基因。 GLDC,AMT和DLD基因编码参与甘氨酸代谢的酶,而Glyt1和Glyt2基因编码甘氨酸的特定转运蛋白。在GCSH基因中,我们已经确定了剪接受体共识序列的基本变化,在内含子4中。在其他情况下未检测到GCSH突变。将AT取代为GT,该AT应该废除该内含子的剪接函数。将患者诊断为瞬时高血糖血症。确定的另一个突变是LPT基因中的错义突变,这导致氨基酸取代形成精氨酸与甘氨酸。精氨酸残基在其他香料中是高度保守的,表明进化重要性。在这一系列的突变筛选中未检测到其他突变。我们得出结论,高血糖可能是由GLDC或AMT以外的其他基因引起的。
项目成果
期刊论文数量(21)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Rapid and non-invasive diagnosis of glycine encephalopathy by 13C-glycine breath test
13C-甘氨酸呼气试验快速、无创诊断甘氨酸脑病
- DOI:
- 发表时间:2006
- 期刊:
- 影响因子:0
- 作者:Kamada K;Yoshida A;Khamsri B;Piroozm;A;Yamashita T;Uchiyama T;Fujita M;Adachi A.;Kure S et al.
- 通讯作者:Kure S et al.
A direct correlation between ischemic injury and extracellular glycine concentntion in mice with altered activity of glycine cleavage multi-enzyme system
甘氨酸裂解多酶系统活性改变的小鼠缺血性损伤与细胞外甘氨酸浓度之间的直接相关性
- DOI:
- 发表时间:2007
- 期刊:
- 影响因子:0
- 作者:Kamada K;Igarashi T;Martin MA;Khamsri B;Hatcho K;Yamashita T;Fujita M;Uchiyama T;Adachi A.;Oda M
- 通讯作者:Oda M
Encylopedic Reference of Molecular Mechanism of Disease
疾病分子机制百科全书参考
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:Kure S;Tada K
- 通讯作者:Tada K
Non ketotic hyperglycinemia associated with primary pulmonary hypertension and acylglycinuria in three families
三个家系中与原发性肺动脉高压和酰基甘氨酸尿相关的非酮症高甘氨酸血症
- DOI:
- 发表时间:2006
- 期刊:
- 影响因子:0
- 作者:Khamsri B;Murao F;Yoshida A;Sakurai A;Uchiyama T;Shirai H;Matsuo Y;Fujita M;Adachi A.;Del Toro M
- 通讯作者:Del Toro M
Ischemia-induce brain damage depends on the glycine cleavage system via extracellular glycine concentration.
缺血引起的脑损伤取决于通过细胞外甘氨酸浓度的甘氨酸裂解系统。
- DOI:
- 发表时间:2007
- 期刊:
- 影响因子:0
- 作者:Oda M;et al.
- 通讯作者:et al.
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KURE Shigeo其他文献
KURE Shigeo的其他文献
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{{ truncateString('KURE Shigeo', 18)}}的其他基金
Genomic analysis of steroid-sensitive nephrotic syndrome using sibling cases
使用兄弟姐妹病例进行类固醇敏感性肾病综合征的基因组分析
- 批准号:
19H03612 - 财政年份:2019
- 资助金额:
$ 2.24万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Genetic testing for risk evaluation of Moyamoya disease
烟雾病风险评估的基因检测
- 批准号:
25670470 - 财政年份:2013
- 资助金额:
$ 2.24万 - 项目类别:
Grant-in-Aid for Challenging Exploratory Research
Cerebral vascular abnormality in carriers of the RNF213 risk variant detected by a new genetic test
一项新的基因检测检测出 RNF213 风险变异携带者的脑血管异常
- 批准号:
24659486 - 财政年份:2012
- 资助金额:
$ 2.24万 - 项目类别:
Grant-in-Aid for Challenging Exploratory Research
Development of a genetic test to evaluate the risk for Moyamoya disease
开发评估烟雾病风险的基因测试
- 批准号:
23659512 - 财政年份:2011
- 资助金额:
$ 2.24万 - 项目类别:
Grant-in-Aid for Challenging Exploratory Research
Functional analysis of RNF213 gene identified by genome-wide association study
全基因组关联研究鉴定的RNF213基因的功能分析
- 批准号:
23390267 - 财政年份:2011
- 资助金额:
$ 2.24万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Evaluation system of residual enzymatic activity by 13C-breath test, which improves treatment of patients with inborn error of metabolism
13C呼吸试验残留酶活性评估系统,改善先天性代谢缺陷患者的治疗
- 批准号:
20591214 - 财政年份:2008
- 资助金额:
$ 2.24万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
COMPREHENSIVE DNA DIAGNOSTIC SYSTEM FOR SINGLE GENE DISORDERS
单基因疾病综合 DNA 诊断系统
- 批准号:
15591080 - 财政年份:2003
- 资助金额:
$ 2.24万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Identification of a novel gene responsible for hyperglycinemia
鉴定导致高甘氨酸血症的新基因
- 批准号:
13670779 - 财政年份:2001
- 资助金额:
$ 2.24万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Recurrent deletion in glycine decarboxylase gene and nonketotic hyperglycinemia Medical genetics, Research
甘氨酸脱羧酶基因反复缺失与非酮症高甘氨酸血症医学遗传学、研究
- 批准号:
10672134 - 财政年份:1998
- 资助金额:
$ 2.24万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
DEVELOPMENT AND ANALYSIS OF A MODEL MOUSE FOR NONKETOTIC HYPERGLYCINEMIA
非酮症高甘氨酸血症模型小鼠的研制与分析
- 批准号:
08672593 - 财政年份:1996
- 资助金额:
$ 2.24万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
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