申请人:——
公开号:US07544794B1
公开(公告)日:2009-06-09
This invention relates to the field of nucleic acid chemistry, more specifically to the field of compositions and processes that are nucleic acid analogs. More specifically, this invention relates to compositions that allow the sequencing of oligonucleotides by synthesis, and processes for sequencing by synthesis that exploit these compositions. Most specifically, the instant invention discloses compositions of matter that are 5′-triphosphates of ribo- and 2′-deoxyribonucleosides wherein the 3′-OH group is replaced by a 3′-ONHR group in the alpha configuration, wherein R is either a H or CH3 group. Also disclosed are these triphosphates where the nucleobase carries, via a linker, a reporter groups, such as a fluorescent species that can be used in single- or multi-copy DNA sequencing, or a tag that can be visualized by ultramicroscopy. Also disclosed are processes that use these compositions to do sequencing by synthesis.
这项发明涉及核酸化学领域,更具体地涉及核酸类似物的组合物和过程领域。更具体地说,这项发明涉及一种允许通过合成测序寡核苷酸的组合物,以及利用这些组合物进行合成测序的过程。最具体地,本发明揭示了一种物质组合物,其中为核糖核苷酸和2'-脱氧核糖核苷酸的5'-三磷酸,其中3'-OH基团被3'-ONHR基团取代,且R为H或CH3基团。还公开了这些三磷酸,其中核碱基通过连接物携带报告基团,例如可用于单拷贝或多拷贝DNA测序的荧光物种,或者可通过超微显微镜可视化的标签。还公开了利用这些组合物进行合成测序的过程。