Disclosed are modified thymine bases that provide enhanced base-pairing affinity for adenine or 2,6-diaminopurine bases in polynucleotide hybridization complexes. Also disclosed are polynucleotide oligomers, polynucleotide hybridization complexes that comprise such modified thymine bases. Also disclosed are various methods of use. For example, in some embodiments, modified polynucleotide oligomers disclosed herein can be used as primers and probes for nucleic acid amplification and/or detection.
本文披露了一种改良的胸腺
嘧啶碱基,可提供对
腺嘌呤或
2,6-二氨基嘌呤碱基在多核苷酸杂交复合物中的增强碱基配对亲和性。还披露了多核苷酸寡聚体、包含这种改良胸腺
嘧啶碱基的多核苷酸杂交复合物。还披露了各种使用方法。例如,在某些实施方式中,本文披露的改良多核苷酸寡聚体可用作核酸扩增和/或检测的引物和探针。