A Novel Thymidine Phosphoramidite Synthon for Incorporation of Internucleoside Phosphate Linkers During Automated Oligodeoxynucleotide Synthesis
作者:David Tabatadze、Paul Zamecnik、Ivan Yanachkov、George Wright、Katherine Pierson、Surong Zhang、Alexei Bogdanov,、Valeri Metelev
DOI:10.1080/15257770701795938
日期:2008.1.18
A novel thymidine phosphoramidite synthon was synthesized and successfully used for incorporation of primary amino groups, attached through a triethylene glycol linker to the internucleoside phosphates, at desired locations during automated oligodeoxynucleotide synthesis. The synthesized amino-linker bearing oligonucleotides are stable under deprotection conditions and exhibit Watson-Crick base-pairing
合成了新型的胸苷亚磷酰胺合成子,并成功地用于在自动寡聚脱氧核苷酸合成过程中的所需位置上通过三甘醇接头连接至核苷间磷酸的伯氨基的掺入。合成的带有氨基接头的寡核苷酸在脱保护条件下是稳定的,并表现出Watson-Crick碱基配对特性。与含有碱基连接的氨基连接子的寡核苷酸相比,用碳菁近红外荧光染料对寡核苷酸进行共价标记可产生2.5倍的标记产率。我们预期,开发的合成方法将对单个或多个配体或报道分子的核苷酸序列特异性连接有用。