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2-硫代尿苷置于escherichia Coli Uridine Phosphorylase,磷酸肌酸体系中,用 Aq. Phosphate Buffer 用作溶剂,化学反应生成2-硫脲嘧啶
参考文献:大肠杆菌尿苷磷酸化酶的底物特异性.尿苷磷酸分解中底物的高syn构象的进一步证据
标题:大肠杆菌尿苷磷酸化酶的底物特异性.尿苷磷酸分解中底物的高syn构象的进一步证据
摘要:摘要已经测试了二十五个尿苷类似物,并就其与大肠杆菌尿苷磷酸化酶的结合能力与尿苷进行了比较.确定了在糖部分的2'-,3'-和5'-位以及杂环碱基的2-,4-,5-和6-位上修饰的尿苷衍生物的磷酸分解反应的动力学常数.2'-或5'-羟基的不存在对于成功的结合和磷酸分解不是至关重要的.另一方面,2'-和5'-羟基均不存在导致底物与酶结合的丧失.当不存在3'-羟基时,观测到相同的效果,从而强调了该基团的关键作用.我们的数据阐明了大肠杆菌尿苷磷酸化酶和大肠杆菌对核糖和2'-脱氧核糖核苷的识别机制.大肠杆菌胸苷磷酸化酶.在本研究中获得的动力学结果与可用的x射线结构进行比较,并对酶-底物复合物中的氢键进行分析,结果表明尿苷在尿苷磷酸化酶的活性位点采用了不同寻常的高syn构象.
Doi:10.1080/15257770.2016.1223306

专利信息

专利号:US-12188072-B2
优先权日:2018-03-19
标题 :Compositions and methods for rapid in vitro synthesis of bioconjugate vaccines in vitro via production and N-glycosylation of protein carriers in detoxified prokaryotic cell lysates
发明人：JEWETT MICHAEL CHRISTOPHER; STARK JESSICA CAROL; DELISA MATTHEW P; JAROENTOMEECHAI THAPAKORN
权利人:UNIV NORTHWESTERN; UNIV CORNELL
摘要:Disclosed are methods, systems, components, and compositions for cell-free synthesis of glycosylated carrier proteins. The glycosylated carrier proteins may be utilized in vaccines, including anti-bacterial vaccines. The glycosylated carrier proteins may include a bacterial polysaccharide conjugated to a carrier, which may be utilized to generate an immune response in an immunized host against the polysaccharide conjugated to the carrier. The glycosylated carrier proteins may be synthesized in cell-free glycoprotein synthesis (CFGpS) systems using prokaryote cell lysates that are enriched in components for glycoprotein synthesis such as oligosaccharyltransferases (OSTs) and lipid-linked oligosaccharides (LLOs) including OSTs and LLOs associated with synthesis of bacterial O antigens.

专利号:US-12365930-B2
优先权日:2016-07-14
标题:Method for rapid in vitro synthesis of glycoproteins via recombinant production of N-glycosylated proteins in prokaryotic cell lysates
发明人：JEWETT MICHAEL CHRISTOPHER; STARK JESSICA CAROL; DELISA MATTHEW P; JAROENTOMEECHAI THAPAKORN
权利人:UNIV NORTHWESTERN; UNIV CORNELL
摘要:Disclosed are methods, systems, components, and compositions for cell-free synthesis of glycosylated proteins. The glycosylated proteins may be utilized in vaccines, including anti-bacterial vaccines. The glycosylated proteins may include a bacterial polysaccharide conjugated to a carrier, which may be utilized to generate an immune response in an immunized host against the polysaccharide conjugated to the carrier. The glycosylated proteins may be synthesized in cell-free glycoprotein synthesis (CFGpS) systems using prokaryote cell lysates that are enriched in components for glycoprotein synthesis such as oligosaccharyltransferases (OSTs) and lipid-linked oligosaccharides (LLOs) including OSTs and LLOs associated with synthesis of bacterial O antigens.

专利号:US-2024287520-A1
优先权日:2021-06-30
标题:Method for synthesis of linkage modified oligomeric compounds
发明人：RODRIGUEZ ANDREW A
权利人:IONIS PHARMACEUTICALS INC
摘要:The present disclosure provides methods of synthesizing modified oligonucletodies and oligomeric compounds (including oligomeric compounds that are antisense agents or portions thereof) comprising a modified oligonucleotide having at least one modified internucleoside linking group. In certain embodiments, the present disclosure provides stabilized formulations of certain sulfonyl azides for use in the synthesis of olignonucleotides comprising one or more sulfonyl phosphoramidate linkages. Some embodiments provide stabilized compositions of high energy reagents that may be used in the synthesis of modified oligonucleotides, allowing for safe process scale preparation thereof.

专利号:US-2004152905-A1
优先权日:2003-01-31
标题:Universal building blocks and support media for synthesis of oligonucleotides and their analogs
发明人：GUZAEV ANDREI P; MANOHARAN MUTHIAH
摘要:Compounds for the synthesis of oligomeric compounds, particularly oligonucleotides and chemically modified oligonucleotide analogs, are provided. In addition, methods for functionalization of a support medium with a first monomeric subunit and methods for the synthesis of oligomeric compounds utilizing the novel compounds bound to support media are provided.

专利号:US-2004242897-A1
优先权日:2002-07-31
标题 :Universal support media for synthesis of oligomeric compounds
发明人：GUZAEV ANDREI P; MANOHARAN MUTHIAH
摘要:Compounds for the synthesis of oligomeric compounds, particularly oligonucleotides and oligonucleotide mimetics, are provided. In addition, methods for functionalizing a support medium with a first monomeric subunit and methods for the synthesis of oligomeric compounds utilizing the novel compounds bound to support media are provided.

专利号:US-2024092821-A1
优先权日:2020-03-31
标题:Synthesis of oligonucleotides and related compounds
发明人：ZHONG MINGHONG; JIN YI; GALA DINESH; PRHAVC MARIJA
权利人:JANSSEN BIOPHARMA INC
摘要:Methods of synthesizing oligonucleotides via new intermediates on a cleavable support having an azidomethyl moiety are disclosed. The method comprises multiple reaction cycles, each of which comprises sequential coupling a nucleoside or oligonucleotide subunit on a cleavable support having an azidomethyl moiety and a nucleoside phosphoramidite or an oligonucleotide phosphoramidite, capping, oxidation/thiolation and deblocking; followed by orthogonal cleavage of the azidomethyl support while keeping all other protecting groups intact. The method can be used in combination with a support moiety for either solid phase or liquid phase oligo synthesis. The soluble support facilitates homogeneous reactions and efficient separations by simple precipitation. The methods also provide novel intermediates useful in the synthesis of oligonucleotide conjugates.