Untemplated Nonenzymatic Polymerization of 3 ',5 ' cGMP: A Plausible Route to 3 ',5 '-Linked Oligonucleotides in Primordia

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14740%2F15%3A00082892" target="_blank" >RIV/00216224:14740/15:00082892 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68081707:_____/15:00446343

Výsledek na webu

<a href="http://pubs.acs.org/doi/pdf/10.1021/acs.jpcb.5b00601" target="_blank" >http://pubs.acs.org/doi/pdf/10.1021/acs.jpcb.5b00601</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acs.jpcb.5b00601" target="_blank" >10.1021/acs.jpcb.5b00601</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Untemplated Nonenzymatic Polymerization of 3 ',5 ' cGMP: A Plausible Route to 3 ',5 '-Linked Oligonucleotides in Primordia

Popis výsledku v původním jazyce

The high-energy 3',5' phosphodiester linkages conserved in 3',5' cyclic GMPs offer a genuine solution for monomer activation required by the transphosphorylation reactions that could lead to the emergence of the first simple oligonucleotide sequences onthe early Earth. In this work we provide an in-depth characterization of the effect of the reaction conditions on the yield of the polymerization reaction of 3',5' cyclic GMPs both in aqueous environment as well as under dehydrating conditions. We show that the threshold temperature of the polymerization is about 30 degrees C lower under dehydrating conditions than in solution. In addition, we present a plausible exergonic reaction pathway for the polymerization reaction, which involves transient formation of anionic centers at the O3' positions of the participating riboses. We suggest that excess Na+ cations inhibit the polymerization reaction because they block the anionic mechanism via neutralizing the negatively charged O3'.

Název v anglickém jazyce

Untemplated Nonenzymatic Polymerization of 3 ',5 ' cGMP: A Plausible Route to 3 ',5 '-Linked Oligonucleotides in Primordia

Popis výsledku anglicky

The high-energy 3',5' phosphodiester linkages conserved in 3',5' cyclic GMPs offer a genuine solution for monomer activation required by the transphosphorylation reactions that could lead to the emergence of the first simple oligonucleotide sequences onthe early Earth. In this work we provide an in-depth characterization of the effect of the reaction conditions on the yield of the polymerization reaction of 3',5' cyclic GMPs both in aqueous environment as well as under dehydrating conditions. We show that the threshold temperature of the polymerization is about 30 degrees C lower under dehydrating conditions than in solution. In addition, we present a plausible exergonic reaction pathway for the polymerization reaction, which involves transient formation of anionic centers at the O3' positions of the participating riboses. We suggest that excess Na+ cations inhibit the polymerization reaction because they block the anionic mechanism via neutralizing the negatively charged O3'.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Physical Chemistry B

ISSN

1520-6106

e-ISSN

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Svazek periodika

119

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

2979-2989

Kód UT WoS článku

000349942300021

EID výsledku v databázi Scopus

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