Inhibition of Rare Earth Catalytic Activity by Proteins

Details Inhibition of Rare Earth Catalytic Activity by Proteins Inhibition of Rare Earth Catalytic Activity by Proteins

Jan 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000oleb...30...25a&link_type=abstract

Origins of Life and Evolution of the Biosphere, v. 30, Issue 1, p. 25-32 (2000).

Computer Science

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Scientific paper

Catalytic action of rare earth element, Ce(IV) to hydrolyze phosphomonoester bonds was confirmed. This effect was considered to suppress abiotic synthesis of nucleotides and nucleic acids in the primitive sea, and hence the origin of life. However, we found that the presence of proteins, especially albumin, strongly inhibited the catalytic action of Ce(IV). This finding was supported by preferential binding of rare earth elements (REEs) to proteins which was revealed using the radioisotopes of these REEs. Consequently, if a large amount of proteins was synthesized in the primitive sea, abiotic synthesis of phosphomonoester compounds, and hence nucleic acids, might have been possible.

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