An Unbiased Chemical Approach for the Discovery of Naturally Occurring Ribozymes

发现天然核酶的公正化学方法

基本信息

  • 批准号:
    8536647
  • 负责人:
  • 金额:
    $ 5.22万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
  • 财政年份:
    2012
  • 资助国家:
    美国
  • 起止时间:
    2012-08-03 至 2014-08-02
  • 项目状态:
    已结题

项目摘要

DESCRIPTION (provided by applicant): The discovery that RNA can catalyze chemical reactions revealed a novel role for these molecules that extends beyond the transfer of genetic information. To date, only a small number of biologically occurring catalytic RNAs (ribozymes) have been identified. This may be a result of the absence of unbiased, activity- based methods for their identification. Approaches that do not rely on secondary structure prediction and instead select RNAs possessing enhanced reactivity could reveal novel ribozymes. This proposal describes the development of a chemical approach to the discovery of biological ribozymes. This activity-based approach employs small-molecule probes designed to covalently label RNAs possessing enhanced chemical reactivity. The strategy for the design of ribozyme-specific chemical probes relies on the well-validated assumption that ribozymes employ similar tools as protein catalysts; the tertiary structures of most ribozymes result in functional groups with enhanced nucleophilicity that are largely responsible for catalysis. Appropriately designed electrophilic compounds (activity-based probes) designed to selectively label highly nucleophilic RNAs will be equipped with an affinity tag (biotin) and applied to the selection of unusually reactive RNAs from RNA pools derived from the genomes of a range of bacterial and eukaryotic organisms. The chemical reactivity and biological roles of any newly identified RNAs will be fully characterized.
描述(由申请人提供):RNA可以催化化学反应的发现揭示了这些分子的一种新作用,这种作用超出了遗传信息的传递。迄今为止,只有少数生物催化RNA(核酶)已被确定。这可能是由于缺乏无偏见的、基于活动的方法来识别它们。不依赖于二级结构预测的方法, 选择具有增强的反应性的RNA可以揭示新的核酶。 该提案描述了一种化学方法的发展,以发现生物核酶。这种基于活性的方法采用设计用于共价标记具有增强的化学反应性的RNA的小分子探针。核酶特异性化学探针的设计策略依赖于经过充分验证的假设,即核酶采用与蛋白质催化剂类似的工具;大多数核酶的三级结构导致具有增强的亲核性的官能团,这些官能团在很大程度上负责催化。设计用于选择性标记高度亲核RNA的适当设计的亲电化合物(基于活性的探针)将配备有亲和标签(生物素),并应用于从源自一系列细菌和真核生物的基因组的RNA库中选择异常反应性RNA。任何新发现的RNA的化学反应性和生物学作用将得到充分表征。

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)

数据更新时间:{{ journalArticles.updateTime }}

{{ item.title }}
{{ item.translation_title }}
  • DOI:
    {{ item.doi }}
  • 发表时间:
    {{ item.publish_year }}
  • 期刊:
  • 影响因子:
    {{ item.factor }}
  • 作者:
    {{ item.authors }}
  • 通讯作者:
    {{ item.author }}

数据更新时间:{{ journalArticles.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ monograph.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ sciAawards.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ conferencePapers.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ patent.updateTime }}

Richard Ian McDonald其他文献

Richard Ian McDonald的其他文献

{{ item.title }}
{{ item.translation_title }}
  • DOI:
    {{ item.doi }}
  • 发表时间:
    {{ item.publish_year }}
  • 期刊:
  • 影响因子:
    {{ item.factor }}
  • 作者:
    {{ item.authors }}
  • 通讯作者:
    {{ item.author }}

{{ truncateString('Richard Ian McDonald', 18)}}的其他基金

An Unbiased Chemical Approach for the Discovery of Naturally Occurring Ribozymes
发现天然核酶的公正化学方法
  • 批准号:
    8397094
  • 财政年份:
    2012
  • 资助金额:
    $ 5.22万
  • 项目类别:

相似海外基金

Collaborative Research: NSF-DFG: CAS: Electrochemical Hydrogenation of Amides and Esters
合作研究:NSF-DFG:CAS:酰胺和酯的电化学氢化
  • 批准号:
    2140205
  • 财政年份:
    2022
  • 资助金额:
    $ 5.22万
  • 项目类别:
    Standard Grant
Collaborative Research: NSF-DFG: CAS: Electrochemical Hydrogenation of Amides and Esters
合作研究:NSF-DFG:CAS:酰胺和酯的电化学氢化
  • 批准号:
    2140196
  • 财政年份:
    2022
  • 资助金额:
    $ 5.22万
  • 项目类别:
    Standard Grant
Atroposelective Synthesis of Hindered Amides - Exploration of Synthetic Peptide Catalysts -
受阻酰胺的天体选择性合成-合成肽催化剂的探索-
  • 批准号:
    504378162
  • 财政年份:
    2022
  • 资助金额:
    $ 5.22万
  • 项目类别:
    WBP Fellowship
Development of Peptide Chemical Modification Enabled by N-Halogenation of Amides
酰胺 N-卤化实现的肽化学修饰的发展
  • 批准号:
    22H02743
  • 财政年份:
    2022
  • 资助金额:
    $ 5.22万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Modulating Signaling Endocannabinoids and Fatty Acid Amides
调节信号传导内源性大麻素和脂肪酸酰胺
  • 批准号:
    10532252
  • 财政年份:
    2021
  • 资助金额:
    $ 5.22万
  • 项目类别:
CAREER: SusChEM: Iron Catalysts for the Reduction of Amides
职业:SusChEM:用于还原酰胺的铁催化剂
  • 批准号:
    2146728
  • 财政年份:
    2021
  • 资助金额:
    $ 5.22万
  • 项目类别:
    Continuing Grant
Modulating Signaling Endocannabinoids and Fatty Acid Amides
调节信号传导内源性大麻素和脂肪酸酰胺
  • 批准号:
    10399712
  • 财政年份:
    2021
  • 资助金额:
    $ 5.22万
  • 项目类别:
Nickel-Catalyzed Alpha-Arylation of Secondary Amides
镍催化仲酰胺的α-芳基化
  • 批准号:
    558383-2020
  • 财政年份:
    2020
  • 资助金额:
    $ 5.22万
  • 项目类别:
    Canadian Graduate Scholarships Foreign Study Supplements
Function of primary fatty acid amides as lipid mediators
伯脂肪酸酰胺作为脂质介质的功能
  • 批准号:
    20K21285
  • 财政年份:
    2020
  • 资助金额:
    $ 5.22万
  • 项目类别:
    Grant-in-Aid for Challenging Research (Exploratory)
Catalytic Synthesis of Pharmaceutical Amides in Water
水中催化合成药用酰胺
  • 批准号:
    EP/T01430X/1
  • 财政年份:
    2020
  • 资助金额:
    $ 5.22万
  • 项目类别:
    Research Grant
{{ showInfoDetail.title }}

作者:{{ showInfoDetail.author }}

知道了