May Cyclic Nucleotides Be a Source for Abiotic RNA Synthesis?

被引：7

作者：

Costanzo, Giovanna ^{[2
]}

Pino, Samanta ^{[1
]}

Botta, Giorgia ^{[3
]}

Saladino, Raffaele ^{[3
]}

Di Mauro, Ernesto ^{[1
]}

机构：

[1] Univ Roma La Sapienza, Dipartimento Biol & Biotecnol Charles Darwin, I-00185 Rome, Italy

[2] Ist Biol & Patol Mol CNR, I-00185 Rome, Italy

[3] Univ Tuscia, Dipartimento ABAC, Viterbo, Italy

来源：

ORIGINS OF LIFE AND EVOLUTION OF BIOSPHERES | 2011年 / 41卷 / 06期

关键词：

Formamide chemistry; Origin of nucleic bases; Abiotic RNA polymerization; INFORMATIONAL POLYMERS; FORMAMIDE; ORIGIN; CHEMISTRY; BASES; LIFE;

D O I：

10.1007/s11084-011-9249-y

中图分类号：

Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Nucleic bases are obtained by heating formamide in the presence of various catalysts. Formamide chemistry also allows the formation of acyclonucleosides and the phosphorylation of nucleosides in every possible position, also affording 2',3' and 3',5' cyclic forms. We have reported that 3',5' cyclic GMP and 3',5' cyclic AMP polymerize in abiotic conditions yielding short oligonucleotides. The characterization of this reaction is being pursued, several of its parameters have been determined and experimental caveats are reported. The yield of non-enzymatic polymerization of cyclic purine nucleotides is very low. Polymerization is strongly enhanced by the presence of base-complementary RNA sequences.

引用

页码：559 / 562

页数：4

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