Functional compatibility of Rho family genes in vivo.

Rho家族基因在体内的功能相容性。

基本信息

  • 批准号:
    15570145
  • 负责人:
  • 金额:
    $ 2.11万
  • 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:
    2003
  • 资助国家:
    日本
  • 起止时间:
    2003 至 2004
  • 项目状态:
    已结题

项目摘要

We have developed the exchangeable gene trap system. The reporter gene, β-geo, can be replaced into any other DNA of interest through Cre-mutant lox site-specific recombination.The Ayu17-52 mouse line is the Rhoa gene knockout mouse line produced by the exchangeable gene trap method. Rho family proteins are Ras-related small GTPases that regulate a variety of cellular processes. Its function in vivo is still unclear.The purpose of this research project is to clear up the functional compatibility of Rho family genes in vivo.Heterozygous β-geo(Rhoa^<+/geo>) mice showed severe growth retardation, and most of them died in a few weeks after birth.At the first step, Rho1 gene of yeast, one of homologues of mouse Rhoa, was knocked in the trap allele instead of the β-geo gene. Heterozygous Rho1 knock in mice showed no growth retardation. At the second step, human skeletal muscle α actin(HSA) gene promoter was knocked in the trap allele instead of the β-geo gene. At the third step, mouse Rhoc cDNA was knocked in the trap allele instead of the β-geo gene. These replacements could rescue the phenotype of heterozygote. Finaly, we have tested a replacement of reporter gene from β-geo to EGFP.After replacement, the change of the phenotype was observed, too. The phenotype was disappeared completely in heterozygous EGFP(Rhoa^<+/BGFP>) mice. Since the both of β-geo and EGFP gene are expressed quite strongly and ubiquitously, the strong expression of β-geo protein might affect the phenotype severely.Homozygous EGFP(Rhoa^<EGFP/EGFP>) mice show embryonic lethality like as homozygous Rho1 knock in (Rhoa^<Rho1/Rho1>) mice. It means that this is the phenotype of Rhoa protein deficiency. Now, we are investigating if Rhoc replacement might rescue the phenotype of homozygote.
我们开发了可交换的基因捕获系统。报告基因β-geo可以通过Cre突变lox位点特异性重组替换到任何感兴趣的DNA中,Ayu 17 -52小鼠系是通过可交换基因诱捕法产生的Rhoa基因敲除小鼠系。Rho家族蛋白是Ras相关的小GTP酶,其调节多种细胞过程。本研究的目的是阐明Rho家族基因在体内的功能相容性,杂合子β-geo(Rhoa^<+/geo>)小鼠表现出严重的生长迟缓,大多数在出生后几周内死亡,首先敲除小鼠Rhoa同源物之一的酵母Rho 1基因的trap等位基因,以替代β-geo基因。杂合Rho 1敲除小鼠未表现出生长迟缓。第二步,敲除人骨骼肌α肌动蛋白(HSA)基因启动子中的trap等位基因,而不是β-geo基因。在第三步中,敲除小鼠Rhoc cDNA中的陷阱等位基因而不是β-geo基因。这些替换可以挽救杂合子的表型。最后,我们将报告基因从β-geo替换为EGFP,观察替换后细胞表型的变化。在杂合EGFP(Rhoa^<+/BGFP>)小鼠中,表型完全消失。由于β-geo基因和EGFP基因都在小鼠体内广泛表达,因此β-geo蛋白的高表达可能会严重影响其表型,纯合EGFP(Rhoa^<EGFP/EGFP>)小鼠表现出与纯合Rho 1敲入(Rhoa^<Rho 1/Rho 1>)小鼠相似的胚胎致死性。这意味着这是Rhoa蛋白缺乏症的表型。现在,我们正在研究Rhoc替换是否可以挽救纯合子的表型。

项目成果

期刊论文数量(16)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
これを守らないと罰せられます〜2月19日施行! 遺伝子組換え生物等規制法〜
不遵守的话会受到惩罚的~2月19日实施转基因生物管理法~
  • DOI:
  • 发表时间:
    2004
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Taniwaki;T.;Araki.M.;et al.;荒木 正健
  • 通讯作者:
    荒木 正健
Characterization of an exchangeable gene trap using pU-17 carrying a stop codon-bgeo cassette.
使用携带终止密码子-bgeo 盒的 pU-17 表征可交换基因陷阱。
  • DOI:
  • 发表时间:
    2005
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Taniwaki;T.;Araki.M.;et al.
  • 通讯作者:
    et al.
Generation of high-affinity antibody against T cell-dependent antigen in ganp gene-transgenic mouse.
在 ganp 基因转基因小鼠中产生针对 T 细胞依赖性抗原的高亲和力抗体。
  • DOI:
  • 发表时间:
    2005
  • 期刊:
  • 影响因子:
    0
  • 作者:
    N.Sakaguchi;T.Kimura;S.Matsushita;S.Fujimura;J.Shibata;M.Araki;T.Sakamoto;C.Minoda;K.Kuwahara
  • 通讯作者:
    K.Kuwahara
RNA干渉は鶏心筋の一次培養細胞の筋蛋白質トロポニンTの発現を抑制した
RNA 干扰抑制原代培养鸡心肌细胞中肌肉蛋白肌钙蛋白 T 的表达。
Myopathy phenotype in transgenic mice expressing mutated PABPN1 as a model of oculopharyngeal muscular dystrophy
  • DOI:
    10.1093/hmg/ddh017
  • 发表时间:
    2004-01-15
  • 期刊:
  • 影响因子:
    3.5
  • 作者:
    Hino, H;Araki, K;Yamamura, K
  • 通讯作者:
    Yamamura, K
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ARAKI Masatake其他文献

ARAKI Masatake的其他文献

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{{ truncateString('ARAKI Masatake', 18)}}的其他基金

Establishment of Cre-driver mouse lines by using the Exchangeable Gene Trap Ckones.
使用可交换基因陷阱 Ckones 建立 Cre-driver 小鼠品系。
  • 批准号:
    23300159
  • 财政年份:
    2011
  • 资助金额:
    $ 2.11万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Expression Analysis of the Exchangeable Gene Trap Clones by X-gal Staining
X-gal 染色可交换基因捕获克隆的表达分析
  • 批准号:
    20300146
  • 财政年份:
    2008
  • 资助金额:
    $ 2.11万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Development of the in situ RT-PCR method to aim at the analysis of gene trap clones
开发用于分析基因陷阱克隆的原位 RT-PCR 方法
  • 批准号:
    09680728
  • 财政年份:
    1997
  • 资助金额:
    $ 2.11万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)

相似海外基金

Biological research foundation formation and neuroscience studies based on transposon-mediated gene trap methods
基于转座子介导的基因陷阱方法的生物学研究基础形成和神经科学研究
  • 批准号:
    21H02463
  • 财政年份:
    2021
  • 资助金额:
    $ 2.11万
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Analysis of Tmem161a function in bone metabolism using the exchangeable gene trap mutagenesis
利用可交换基因陷阱诱变分析 Tmem161a 在骨代谢中的功能
  • 批准号:
    17K11017
  • 财政年份:
    2017
  • 资助金额:
    $ 2.11万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Identification of TDP-43 related genes using gene trap
使用基因陷阱鉴定TDP-43相关基因
  • 批准号:
    16K15481
  • 财政年份:
    2016
  • 资助金额:
    $ 2.11万
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
Development of an efficient screening system to identify novel bone metabolism-related genes using the exchangeable gene trap mutagenesis mouse models.
开发有效的筛选系统,使用可交换基因陷阱诱变小鼠模型来识别新的骨代谢相关基因。
  • 批准号:
    26462305
  • 财政年份:
    2014
  • 资助金额:
    $ 2.11万
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    Grant-in-Aid for Scientific Research (C)
Development of a gene-trap strategy for the transcriptionally silent genes of non-coding RNAs in the target cells
开发针对靶细胞中非编码RNA转录沉默基因的基因陷阱策略
  • 批准号:
    25290034
  • 财政年份:
    2013
  • 资助金额:
    $ 2.11万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Sexually dimorphic gene expression in exchangeable gene trap mouse lines
可交换基因捕获小鼠系中的性别二态性基因表达
  • 批准号:
    25430092
  • 财政年份:
    2013
  • 资助金额:
    $ 2.11万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Establishment of Cre-driver mouse lines by using the Exchangeable Gene Trap Ckones.
使用可交换基因陷阱 Ckones 建立 Cre-driver 小鼠品系。
  • 批准号:
    23300159
  • 财政年份:
    2011
  • 资助金额:
    $ 2.11万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Construction of a model mouse library related to osteogenic and chondrogenic disease using an exchangeable gene trap mutagenesis
利用可交换基因陷阱诱变构建与成骨和软骨形成疾病相关的模型小鼠文库
  • 批准号:
    23592220
  • 财政年份:
    2011
  • 资助金额:
    $ 2.11万
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    Grant-in-Aid for Scientific Research (C)
Analysis of gene-trap mouse lines disrupting long intergenic non-coding RNA genes.
分析破坏长基因间非编码 RNA 基因的基因陷阱小鼠品系。
  • 批准号:
    23310135
  • 财政年份:
    2011
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    $ 2.11万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Elucidation of the target genes for the treatment of lipid disorder by gene-trap method in human haploid cells
通过基因陷阱法在人单倍体细胞中阐明治疗脂质紊乱的靶基因
  • 批准号:
    23659469
  • 财政年份:
    2011
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    $ 2.11万
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
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