申请人:Applied Biosystems, LLC
公开号:EP2202238A1
公开(公告)日:2010-06-30
A nucleoside/tide compound having the structure: NUC-L-S-LB/LG, is described wherein NUC is a nucleoside/tide having a nucleobase portion B, L is a rigid linkage, S is a spacer; and LB/LG is a member of a linkage pair or a label. NUC is attached to L through B such that when B is a purine, L is attached to the 8-position of the purine, when B is 7-deazapurine, L is attached to the 7-position of the 7-deazapurine, and when B is pyrimidine, L is attached to the 5-position of the pyrimidine. In an important aspect of the invention, L has the structure (a) wherein each of n, o and p are integers ranging from 0 to 3, and the sum of n, o and p is at least 2, and each of W, X, Y and Z is selected from the group consisting of carbon and nitrogen. The invention further includes polynucleotide compounds comprising the nucleoside/tide, and primer extension methods utilizing the nucleoside/tide, particularly when used in combination with certain mutant polymerase enzymes.
描述了一种具有以下结构的核苷/苷酸化合物:NUC-L-S-LB/LG:其中 NUC 是具有核碱基部分 B 的核苷/苷酸,L 是刚性连接,S 是间隔物;LB/LG 是连接对的成员或标签。NUC 通过 B 连接到 L 上,当 B 是嘌呤时,L 连接到嘌呤的 8 位;当 B 是 7-脱氮嘌呤时,L 连接到 7-脱氮嘌呤的 7 位;当 B 是嘧啶时,L 连接到嘧啶的 5 位。在本发明的一个重要方面,L 具有结构(a),其中 n、o 和 p 各为 0 至 3 的整数,且 n、o 和 p 之和至少为 2,W、X、Y 和 Z 各选自碳和氮组成的组。本发明还包括包含该核苷/苷的多核苷酸化合物,以及利用该核苷/苷的引物延伸方法,特别是与某些突变聚合酶结合使用时。