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posted 17. April 2003 22:26
Journal of Proteome Research, ASAP Article 10.1021/pr034005h S1535-3893(03)04005-3
Living Nanovesicles-Chemical and Physical Survival Strategies of Primordial Biosystems
by Andrei P. Sommer, David S. McKay, Neva Ciftcioglu, Uri Oron, Adam R. Mester, and E. Olavi Kajander
Life on Earth and Mars could have started with self-assembled nanovesicles similar to the present nanobacteria (NB). To resist extreme environmental stress situations and periods of nutritional deprivation, nanovesicles would have had a chemical composition protected by a closed mineralized compartment, facilitating their development in a primordial soup, or other early wet environment. Their survivability would have been enhanced if they had mechanisms for metabolic communication, and an ability to collect primordially available energy forms. Here, we establish an irreducible model system for life formation starting with NB.