Multipurpose reversible terminators

多用途可逆终结器

• 批准号: 7909938
• 负责人: Daniel Hutter
• 金额: $ 56.16万
• 依托单位: FIREBIRD BIOMOLECULAR SCIENCES, LLC
• 依托单位国家: 美国
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-09-17 至 2012-06-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7909938
• 关键词: Multipurpose; reversible; terminators

DESCRIPTION (provided by applicant): This Phase 2 STTR application will allow the Foundation for Applied Molecular Evolution (FfAME) to complete its transfer of technology to Firebird Biomolecular Sciences LLC, allowing Firebird to commercialize nucleoside triphosphates where the 3'-OH groups are blocked by a 3'-ONH2 group. Triphosphates having this modification are accepted by DNA polymerases and other enzymes. After being incorporated at the 3'-end of a growing oligonucleotide, the 3'-ONH2 group blocks extension (just as a 2',3'-dideoxynucleotide does). However, this blockage is reversible; buffered sodium nitrite rapidly cleaves the O-NH2 bond to generate the natural 3'-OH group, yielding under mild conditions a primer that can again be extended by DNA polymerase. Further, the 3'-ONH2 group offers a handle that allows the terminated DNA to selectively react with certain functional groups, allowing for the recovery of the extended, terminated DNA from complex biological mixtures. This is useful in many architectures that analyze DNA, including "next generation" sequencing that promises to personalize diagnostics and therapeutics, tools to detect single nucleotide polymorphisms, strategies to do "effectiveness research" for medical treatments, and other architectures that have increasing complexity and risk. Therefore, the products to be developed here have multiple applications in a variety of research settings, genetic disease discovery, and human diagnostics. This Phase 2 project, together with Firebird's internal funding, will build a production pipeline to prepare 12 different triphosphates carrying the reversible terminator, as well as four phosphoramidites to support kits that use these. The synthetic chemistry developed in the Phase 1 period will support this pipeline. Further, tools used in the Phase I period to develop polymerases to handle unnatural nucleoside triphosphates will be applied to create still better polymerases for assays that exploit our triphosphates. Finally, kits for DNA analysis will be produced that exploit these reversible terminators, in many cases with other reagent innovations that are proprietary to FfAME, Firebird, and others. Several customers are already exploiting these compounds. These include foreign customers, whose purchase of these reagents is creating American jobs through the sale of products internationally. Growing its portfolio of nucleic acid analogs underlies the next phase in the development of Firebird as a corporation. PUBLIC HEALTH RELEVANCE: Firebird Biomolecular Sciences LLC commercializes innovative reagents, polymerases that exploit them, and assays and architectures based on them, for the detection, analysis and sequencing of nucleic acids. Firebird also develops software to exploit genomic sequence data, and what it means in biology and medicine. This Phase 2 STTR project will create over two dozen jobs through the development of a series of reversible terminators suitable for next generation DNA sequencing, SNP detection, and DNA capture.

描述（由申请人提供）：该2期STTR申请将允许应用分子进化基金会（FfAME）完成其向Firebird Biomolecular Sciences LLC的技术转让，从而允许Firebird商业化核苷三磷酸，其中3 '-OH基团被3'-ONH 2基团封闭。具有这种修饰的三磷酸被DNA聚合酶和其他酶所接受。在掺入生长的寡核苷酸的3 '-末端后，3'-ONH 2基团阻断延伸（就像2 '，3'-双脱氧核苷酸一样）。然而，这种阻断是可逆的;缓冲的亚硝酸钠快速切割O-NH 2键以产生天然的3 '-OH基团，在温和条件下产生可以再次被DNA聚合酶延伸的引物。此外，3 '-ONH 2基团提供了一个手柄，允许终止的DNA选择性地与某些官能团反应，允许从复杂的生物混合物中回收延伸的终止的DNA。这在许多分析DNA的架构中是有用的，包括承诺个性化诊断和治疗的“下一代”测序，检测单核苷酸多态性的工具，为医学治疗进行“有效性研究”的策略，以及具有增加的复杂性和风险的其他架构。因此，这里要开发的产品在各种研究环境、遗传疾病发现和人类诊断中具有多种应用。这个第二阶段项目，加上Firebird的内部资金，将建立一个生产管道，以制备12种不同的三磷酸盐，携带可逆终止剂，以及四种亚磷酰胺，以支持使用这些试剂盒。在第1阶段开发的合成化学将支持这一管道。此外，在I期阶段用于开发处理非天然核苷三磷酸的聚合酶的工具将用于创建更好的聚合酶，用于利用我们的三磷酸的测定。最后，将生产利用这些可逆终止子的DNA分析试剂盒，在许多情况下，使用FfAME、Firebird等专有的其他试剂创新。一些客户已经在开发这些化合物。这些客户包括外国客户，他们购买这些试剂通过国际销售产品为美国创造了就业机会。扩大其核酸类似物的投资组合是Firebird公司发展的下一阶段的基础。 公共卫生关系：Firebird Biomolecular Sciences LLC商业化创新试剂，利用它们的聚合酶，以及基于它们的检测和架构，用于核酸的检测，分析和测序。Firebird还开发了利用基因组序列数据的软件，以及它在生物学和医学中的意义。这个第二阶段的STTR项目将通过开发一系列适用于下一代DNA测序、SNP检测和DNA捕获的可逆终止子创造二十多个工作岗位。