[EN] REAGENTS FOR REVERSIBLY TERMINATING PRIMER EXTENSION<br/>[FR] RÉACTIFS UTILISÉS POUR L'INTERRUPTION RÉVERSIBLE D'EXTENSION D'AMORCE
申请人:BENNER STEVEN ALBERT
公开号:WO2010110775A1
公开(公告)日:2010-09-30
This invention relates to the field of nucleic acid chemistry, more specifically to the field of compositions of matter that comprise triphosphates of modified 2'-deoxynucleosides and oligonucleotides that are formed when these are appended to the 3'-end of a primer, wherein said modifications comprise NH2 moiety attached to their 3'-hydroxyl group and a fluorescent species in a form of a tag affixed to the nucleobase via a linker that can be cleaved. Such compositions and their associated processes enable and improve the sequencing of oligonucleotides using a strategy of cyclic reversible termination, as outlined in US Patent 6,664,079. Most specifically, the invention concerns compositions of matter that are 5'-triphosphates of ribo- and 2'- deoxyribonucleosides carrying detectable tags and oligonucleotides that might be derived from them. The invention also concerns processes wherein a DNA polymerase, RNA polymerase, or reverse transcriptase synthesizes said oligonucleotides via addition of said triphosphates to a primer.
这项发明涉及核酸化学领域,更具体地涉及包括改性2'-脱氧核苷酸三磷酸和寡核苷酸的物质组合的领域,当这些物质附加到引物的3'-末端时形成,其中这些改性包括连接到它们的3'-羟基的NH2基团和以可切割的方式通过连接器固定到核碱基上的荧光物种的标签。这种组合物及其相关的过程使得并改善了使用循环可逆终止策略进行寡核苷酸测序,正如美国专利6,664,079中所概述的那样。具体而言,该发明涉及的是包含可检测标签的核糖和2'-脱氧核糖核苷酸的5'-三磷酸和可能由它们衍生的寡核苷酸的物质组合。该发明还涉及DNA聚合酶、RNA聚合酶或逆转录酶通过将这些三磷酸添加到引物而合成所述寡核苷酸的过程。