核碱基和三聚磷酸之间的磷酰胺键的光谱证据:可能是核前多碱基磷酸链的生成

Q3 Multidisciplinary Archives Des Sciences Pub Date : 1997-01-01 DOI:10.5169/SEALS-740277

G. Turian, Isabelle Schoenenberger-Sola

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引用次数: 2

摘要

在微碱性、核碱基和三聚磷酸盐的水相混合物中测量的紫外光谱的低色性及其通过酸化的逆转，为它们的脱水、磷酰胺缩合成酸不稳定的双分子碱基焦磷酸多碱基磷酸单体单位提供了证据，这些多碱基磷酸单体被合理地认为是益生元进化的无核糖前核聚合物。

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Spectral evidence for phosphoramide bondings between nucleobases and tripolyphosphate: possibly generative of prenucleic polybasephosphate chains

Hypochromy of the UV spectra measured in slightly alkaline, aqueous mixtures of nucleobases and tripolyphosphate and its reversal by acidification have grounded evidence for their dehydrating, phosphoramidic condensation into acid-labile bimolecular base-pyrophosphate monomeric units of polybasephosphates, plausibly considered as riboseless prenucleic polymers of prebiotic evolution.

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