Analytical studies of 'mixed sequence' oligodeoxyribonucleotides synthesized by competitive coupling of either methyl- or beta-cyanoethyl-N,N-diisopropylamino phosphoramidite reagents, including 2'-deoxyinosine.
Analytical studies of 'mixed sequence' oligodeoxyribonucleotides synthesized by competitive coupling of either methyl- or beta-cyanoethyl-N,N-diisopropylamino phosphoramidite reagents, including 2'-deoxyinosine.
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通过甲基-或β-氰乙基-N,N-二异丙氨基亚磷酰胺试剂（包括2-脱氧肌苷）竞争性偶联合成的“混合序列”寡脱氧核糖核苷酸的分析研究。
DOI：
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发表时间：
1985
影响因子：
14.9
通讯作者：
R. Andrew Byrd
中科院分区：
文献类型：
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作者：
Gerald Zon;Kathleen A. Gallo;Carrie J. Samson;Kai;Michael F. Summers;R. Andrew Byrd
High-performance liquid chromatography (HPLC) and 1H/31P nuclear magnetic resonance (NMR) spectroscopy were used to measure the molar ratio of oligodeoxyribonucleotide products in mixtures obtained with automated DNA synthesizers that employed competitive coupling of either standard methyl- or newer beta-cyanoethyl-N,N-diisopropylamino phosphoramidite reagents, which include deoxyinosine. Mixtures of these reagents when used as freshly prepared solutions afforded ratios of products that indicated negligibly small differences among the rates of the various competitive coupling reactions. However, studies of reagent stability in solution revealed that both types of the N-isobutyryl deoxyguanosine reagent decompose faster than their corresponding dA, dC, and dT phosphoramidites, which led to significantly lower proportions of dG-containing sequences. This problem was attenuated for the beta-cyanoethyl reagents due to their slower rate of decomposition.
