Technology for Synthesis of Chemically Diverse RNAs
化学多样性 RNA 的合成技术
基本信息
- 批准号:9199672
- 负责人:
- 金额:$ 21.36万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2016
- 资助国家:美国
- 起止时间:2016-09-01 至 2019-02-28
- 项目状态:已结题
- 来源:
- 关键词:AccidentsAddressAwarenessBacteriophagesBiochemical ReactionBiomedical ResearchBuffersCell physiologyChemicalsChemistryClinicalCloningCouplingDNADevelopmentDiagnosticDiagnostics ResearchEconomicsEffectivenessEngineeringGenerationsGenetic TranscriptionGoalsIn VitroLabelMarinesMethodsModificationNucleotidesPerformancePhasePositioning AttributePreparationPublishingRNARNA SequencesRNA chemical synthesisReactionResistanceS PhaseSodium ChlorideSolidStructureSynthesis ChemistrySystemTechnologyTherapeuticTimeTranscriptVariantWorkaptamerbasechemical synthesisdesignin vivonew technologyphosphoramiditequantumscreeningsensortool
项目摘要
Summary
RNA synthesis technologies have become critical in basic biomedical research, and in development of RNA‐based
sensors, diagnostics and therapeutics1‐6. Currently, RNAs are synthesized by either solid‐phase phosphoramidite
chemistry7,8, or by transcription in solution with phage‐encoded RNA polymerases10. The structural diversity of
chemically synthesized RNAs is limited by the availability of the phosphoramidites and the compatibility of reaction
chemistry with different nucleotide modifications, but the more important limitation of chemical synthesis is that RNAs
longer than a few tens of nucleotides cannot be made with acceptable yields11. Enzymatic methods allow synthesis of
much longer RNAs12, and by using specially engineered RNAPs13‐18, even allow synthesis of RNAs with non‐canonical
chemistry to enhance functionality or RNAse resistance19,20, but a limitation of enzymatic synthesis is that the chemical
composition of an RNA is homogeneously determined by the mix of NTPs in the reaction (i.e., different segments of one
RNA cannot have different chemistry). We recently published a proof‐of‐principle study for a new RNA synthesis
technology‐‐PLOR (for positional labeling of RNA)‐‐that combines solid‐phase and enzymatic synthesis to allow
preparation of indefinitely long RNAs in which multiple specific segments or nucleotides can be specifically labeled with
distinct chemistry21. This technology represents a quantum leap in our ability to characterize RNA structure and
mechanism, to prepare RNA aptamers or interfering RNAs specifically derivatized to optimize their delivery, stability or
effectiveness in vivo, and also presents potential advantages in efficiency that may supersede current synthesis methods
even for conventional (single chemistry) RNAs. The proposed work will optimize the efficiency and economics of this
novel technology, expand its utility for synthesis of RNAs with non‐canonical nucleotide chemistries, and, in general,
make possible the routine and economically efficient preparation of a new generation of mosaic, chemically diverse RNA
molecules with applications ranging from fundamental biomedical research to clinical therapeutics.
1
总结
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)
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{{ truncateString('RUI J. SOUSA', 18)}}的其他基金
Development of imaging reagents to monitor GTP levels and GTP/GDP ratios in vivo
开发成像试剂来监测体内 GTP 水平和 GTP/GDP 比率
- 批准号:
8129628 - 财政年份:2010
- 资助金额:
$ 21.36万 - 项目类别:
Development of imaging reagents to monitor GTP levels and GTP/GDP ratios in vivo
开发成像试剂来监测体内 GTP 水平和 GTP/GDP 比率
- 批准号:
7941549 - 财政年份:2010
- 资助金额:
$ 21.36万 - 项目类别:
Biology and Mechanism of the Single Subunit RNA Polymerases
单亚基RNA聚合酶的生物学和机制
- 批准号:
7920708 - 财政年份:2009
- 资助金额:
$ 21.36万 - 项目类别:
STRUCTURE/FUNCTION STUDIES OF T7 RNA POLYMERASE
T7 RNA 聚合酶的结构/功能研究
- 批准号:
2191581 - 财政年份:1995
- 资助金额:
$ 21.36万 - 项目类别:
Conformational Dynamics of T7 RNAP Transcription
T7 RNAP 转录的构象动力学
- 批准号:
7318332 - 财政年份:1995
- 资助金额:
$ 21.36万 - 项目类别:
Conformational Dynamics of T7 RNAP Transcription
T7 RNAP 转录的构象动力学
- 批准号:
6987143 - 财政年份:1995
- 资助金额:
$ 21.36万 - 项目类别:
Biology and Mechanism of the Single Subunit RNA Polymerases
单亚基RNA聚合酶的生物学和机制
- 批准号:
7743367 - 财政年份:1995
- 资助金额:
$ 21.36万 - 项目类别:
STRUCTURE/FUNCTION STUDIES OF T7 RNA POLYMERASE
T7 RNA 聚合酶的结构/功能研究
- 批准号:
2900837 - 财政年份:1995
- 资助金额:
$ 21.36万 - 项目类别:
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