A Model of Isotope Separation in Cells at the Early Stages of Evolution / Melkikh A. V.,Bokunyaeva A. O. // ORIGINS OF LIFE AND EVOLUTION OF BIOSPHERES. - 2016. - V. 46, l. 1. - P. 95-104.

ISSN/EISSN:

0169-6149 / 1573-0875

Type:

Article

Abstract:

The separation of the isotopes of certain ions can serve as an important criterion for the presence of life in the early stages of its evolution. A model of the separation of isotopes during their transport through the cell membrane is constructed. The dependence of the selection coefficient on various parameters is found. In particular, it is shown that the maximum efficiency of the transport of ions corresponds to the minimum enrichment coefficient. At the maximum enrichment, the efficiency of the transport system approaches A1/2. Calculated enrichment coefficients are compared with experimentally obtained values for different types of cells, and the comparison shows a qualitative agreement between these quantities.

Author keywords:

Early stages of evolution; Protocells; Efficiency of active transport; Chemical potentials difference ACTIVE-TRANSPORT; FRACTIONATION; IONS; LIFE; RATIOS; OXYGEN

DOI:

10.1007/s11084-015-9463-0

Web of Science ID:

ISI:000366643500008

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	MAR
Publisher	SPRINGER
Address	VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
Language	English
EISSN	1573-0875
Keywords-Plus	ACTIVE-TRANSPORT; FRACTIONATION; IONS; LIFE; RATIOS; OXYGEN
Research-Areas	Life Sciences \& Biomedicine - Other Topics
Web-of-Science-Categories	Biology
Author-Email	melkikh2008@rambler.ru
Number-of-Cited-References	29
Usage-Count-Since-2013	8
Journal-ISO	Orig. Life Evol. Biosph.
Doc-Delivery-Number	CY8FF