Deciphering Enzyme Specificity: Amidohydrolase Superfamily

破译酶的特异性:酰胺水解酶超家族

基本信息

项目摘要

The long-term objective for the research described in this application is directed at a comprehensive understanding of the physical and chemical parameters that relate protein structure and substrate recognition in enzyme-catalyzed reactions. This objective is aimed toward the development of general methodologies and novel protocols for the determination of reaction and substrate specificities for enzymes of unknown function. A critical assessment of the functional annotations forthe more than four million genes that have been sequenced to date suggests that approximately one-third of the encoded proteins have an uncertain, unknown, or /ncorrecf functional assignment. This observation suggests that a significant fraction of the metabolic diversity remains to be properly characterized. Toward this end we will utilize computational docking of high energy intermediates to models of the active sites for enzymes of unknown function to identify the most probable substrates. These efforts will be complemented by the synthesis and screening of chemical libraries and the abstraction of further metabolic information from operon and genomic context. This goal will be pursued by concentrating on the elucidation of the substrate and reaction profiles forthe entire ensemble of enzymes within the amidohydrolase superfamily. The amidohydrolase superfamily is a group of enzymes which has a substantial substrate diversity embedded within active sites that are forged from a (p/a)8-barrel structural fold. Over 6,000 unique protein sequences have been identified as members of the amidohydrolase superfamily. Members of this superfamily have been shown to catalyze the hydrolysis of amides, lactones and organophosphate esters, in addition to decarboxylation, hydration, and isomerization reactions. However, a substantial fraction of the members of this broad superfamily have an ambiguous substrate and reaction specificity that remains to be unraveled. Members of this superfamily of enzymes include dihydroorotase, urease, and adenosine deaminase. The hallmark for this particular superfamily of enzymes is an active site at the C-terminal end of a (p/a)8-barrel structural domain that contains a mononuclear or binuclear metal center that functions predominantly, but not exclusively, to activate solvent water for nucleophilic attack on electrophilic functional groups. The substrate and reaction diversity contained within this enzyme superfamily will provide unique insights into the molecular mechanisms for the evolution and development of novel enzymatic activities from existing structural templates. RELEVANCE (See instructions); The overall objective of this application is directed towards the development of novel and general methods for the elucidation of function for enzymes with unknown substrates. These efforts will unveil new metabolic transformations and identify new targets for therapeutic intervention.
本申请中描述的研究的长期目标是针对全面的 了解与蛋白质结构和底物相关的物理和化学参数 在酶催化反应中的识别。这一目标的目标是发展一般 确定酶的反应和底物专一性的方法和新的方案 未知功能的。对400多万个基因的功能注释的批判性评估 到目前为止已经测序的结果表明,大约三分之一的编码蛋白具有 不确定、未知或/不正确的函数赋值。这一观察结果表明,有相当一部分 新陈代谢多样性的特征仍有待适当的描述。为此,我们将利用计算 将高能中间体对接到未知功能的酶的活性部位模型 确定最有可能的底物。这些努力的补充将是合成和筛选 化学库和从操纵子和基因组环境中提取进一步的代谢信息。 这一目标将通过集中于阐明底物和反应曲线来实现 氨基水解酶超家族中的全部酶。酰胺水解酶超家族是一种 具有大量底物多样性的一组酶,嵌入在被锻造的活性部位中 来自(p/a)8桶的构造褶皱。超过6,000个独特的蛋白质序列已被鉴定为成员 氨基水解酶超家族。这个超家族的成员已经被证明催化水解酶 酰胺、内酯和有机磷酸酯,以及脱羧基、水合和异构化 反应。然而,这个广泛的超级大家庭中的相当一部分成员有一个模棱两可的 底物和反应的特异性仍有待解开。这一超家族酶的成员 包括二氢核酸酶、尿素酶和腺苷脱氨酶。这个特殊的超级家族的标志是 酶是一个(p/a)8桶结构域的C末端的活性部位,它包含一个 单核或双核金属中心,主要但不完全用于激活溶剂 亲核攻击亲电官能团的水。底物与反应多样性 包含在这个酶超家族中将提供对分子机制的独特见解 从现有的结构模板进化和开发新的酶活性。 相关性(见说明); 本应用程序的总体目标是开发新的和通用的 底物未知的酶的功能的阐明方法。这些努力将揭开新的 并确定治疗干预的新靶点。

项目成果

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Frank M. Raushel其他文献

Catalytic detoxification
催化解毒
  • DOI:
    10.1038/469310a
  • 发表时间:
    2011-01-19
  • 期刊:
  • 影响因子:
    48.500
  • 作者:
    Frank M. Raushel
  • 通讯作者:
    Frank M. Raushel
The use of phosphotriesterase in the synthesis of enantiomerically pure ProTide prodrugs
磷酸三酯酶在合成对映体纯的前药ProTide中的应用
  • DOI:
    10.1016/j.cbi.2025.111597
  • 发表时间:
    2025-09-05
  • 期刊:
  • 影响因子:
    5.400
  • 作者:
    Andrew N. Bigley;Frank M. Raushel
  • 通讯作者:
    Frank M. Raushel

Frank M. Raushel的其他文献

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{{ truncateString('Frank M. Raushel', 18)}}的其他基金

The Discovery of Novel Metabolic Pathways for the Biosynthesis and Degradation of Complex Carbohydrates within the Human Gut Microbiome
人类肠道微生物组内复杂碳水化合物生物合成和降解的新代谢途径的发现
  • 批准号:
    10323657
  • 财政年份:
    2021
  • 资助金额:
    $ 30.6万
  • 项目类别:
The Discovery of Novel Metabolic Pathways for the Biosynthesis and Degradation of Complex Carbohydrates within the Human Gut Microbiome
人类肠道微生物组内复杂碳水化合物生物合成和降解的新代谢途径的发现
  • 批准号:
    10557076
  • 财政年份:
    2021
  • 资助金额:
    $ 30.6万
  • 项目类别:
The Discovery of Novel Metabolic Pathways for the Biosynthesis and Degradation of Complex Carbohydrates within the Human Gut Microbiome
人类肠道微生物组内复杂碳水化合物生物合成和降解的新代谢途径的发现
  • 批准号:
    10084621
  • 财政年份:
    2021
  • 资助金额:
    $ 30.6万
  • 项目类别:
Novel Biochemical Pathways for the Metabolism of Carbohydrates in the Human gut Micriobiome
人类肠道微生物组中碳水化合物代谢的新生化途径
  • 批准号:
    10063528
  • 财政年份:
    2017
  • 资助金额:
    $ 30.6万
  • 项目类别:
Enzymatic Hydrolysis of Organophosphate Esters
有机磷酸酯的酶水解
  • 批准号:
    9235651
  • 财政年份:
    2017
  • 资助金额:
    $ 30.6万
  • 项目类别:
The Enzymology of Phosphonate Metabolism
磷酸盐代谢的酶学
  • 批准号:
    8418217
  • 财政年份:
    2013
  • 资助金额:
    $ 30.6万
  • 项目类别:
The Enzymology of Phosphonate Metabolism
磷酸盐代谢的酶学
  • 批准号:
    8733182
  • 财政年份:
    2013
  • 资助金额:
    $ 30.6万
  • 项目类别:
The Enzymology of Phosphonate Metabolism
磷酸盐代谢的酶学
  • 批准号:
    9113961
  • 财政年份:
    2013
  • 资助金额:
    $ 30.6万
  • 项目类别:
Amidohydrolase Superfamiily
酰胺水解酶超家族
  • 批准号:
    6854961
  • 财政年份:
    2004
  • 资助金额:
    $ 30.6万
  • 项目类别:
Enzymic Detoxification of Organophosphate Nerve Agents
有机磷神经毒剂的酶解毒
  • 批准号:
    6910693
  • 财政年份:
    2003
  • 资助金额:
    $ 30.6万
  • 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:
    $ 30.6万
  • 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:
    $ 30.6万
  • 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:
    $ 30.6万
  • 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:
    $ 30.6万
  • 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:
    $ 30.6万
  • 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:
    $ 30.6万
  • 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:
    $ 30.6万
  • 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:
    $ 30.6万
  • 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:
    $ 30.6万
  • 项目类别:
    Grant-in-Aid for Challenging Research (Exploratory)
Improving selectivity in Ni-catalyzed activation of amides
提高镍催化酰胺活化的选择性
  • 批准号:
    518319-2018
  • 财政年份:
    2020
  • 资助金额:
    $ 30.6万
  • 项目类别:
    Postgraduate Scholarships - Doctoral
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