Autor:	Mila Pontes-Buarque, Adalberto Vieyra, José A. P. Bonapace, Andréa Penteado-Fava, Ana Claudia Tessis, Fernando de Souza-Barros, Helio Salim de Amorim
Rok vydání:	1999
Předmět:	chemistry.chemical_classification Exergonic reaction Mineral Aqueous solution Chemistry Inorganic chemistry General Medicine engineering.material Catalysis Hydrolysis Adsorption Space and Planetary Science engineering Nucleotide Pyrite Ecology Evolution Behavior and Systematics
Zdroj:	Origins of Life and Evolution of the Biosphere. 29:361-374
ISSN:	0169-6149
Popis:	Minerals have been implicated in different catalytic processes during chemical evolution. It has been proposed that exergonic synthesis of pyrite (FeS2) could have served to promote the endergonic synthesis of biomonomers in early stages of life formation on Earth. The present study was aimed to investigate whether pyrite can adsorb nucleotides and oxo acids in the potentially mild prebiotic conditions found away from the hot hydrothermal vents. It is shown that pyrite strongly adsorbs adenosine 5′-triphosphate in an artificial medium that simulates primordial aqueous environments, and that adsorption is enhanced in the presence of acetate and in an oxygen-free atmosphere. Moreover, the mineral catalyzes the sequential hydrolysis of the γ and β phosphoanhydride bonds of the nucleotide.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a618c5f3a0c31ab502400693885db748 https://doi.org/10.1023/a:1006535029107 Zobrazit plný text záznamu Full text from SpringerLink