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Proceedings Paper

Complexes of ribose with silicates, borates, and calcium: implications to astrobiology
Author(s): Vera M. Kolb; William Zhu
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Paper Abstract

Ribose readily makes complexes with borates, silicates, and calcium. Borate and silicate complexes stabilize and preserve ribose under simulated prebiotic conditions. We report here the C-13 NMR study of the ribose calcium complexes. Calcium ions form complex with teh beta-furanose form of ribose, which is biologically relevant, in the following way. The C-2 and C-3 hydroxyl groups get involved in making the complex, while the C-1 OH remains uninvolved. This allows the C-1 OH, which is the most reactive, anomeric hyroxyl, to react further to make prebiotic nucleosides. Thus, the complexation of calcium with ribose may be responsible for the selection of the beta-furanose form in biology.

Paper Details

Date Published: 1 November 2004
PDF: 8 pages
Proc. SPIE 5555, Instruments, Methods, and Missions for Astrobiology VIII, (1 November 2004); doi: 10.1117/12.568331
Show Author Affiliations
Vera M. Kolb, Univ of Wisconsin/Parkside (United States)
William Zhu, Johnson Polymer (United States)

Published in SPIE Proceedings Vol. 5555:
Instruments, Methods, and Missions for Astrobiology VIII
Richard B. Hoover; Gilbert V. Levin; Alexei Y. Rozanov, Editor(s)

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