Primordial membranes: more than simple container boundaries.

Curr Opin Chem Biol

Institute for Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark. Electronic address:

Published: October 2017

Cellular membranes, which are self-assembled bilayer structures mainly composed of lipids, proteins and conjugated polysaccharides, are the defining feature of cell physiology. It is likely that the complexity of contemporary cells was preceded by simpler chemical systems or protocells during the various evolutionary stages that led from inanimate to living matter. It is also likely that primitive membranes played a similar role in protocell 'physiology'. The composition of such ancestral membranes has been proposed as mixtures of single hydrocarbon chain amphiphiles, which are simpler versions of modern lipids. In this review, we discuss the origins, self-assembly patterns, potential functions of these amphiphiles, and their possible roles in protocell activities, as well as their possible evolution towards modern lipids.

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http://dx.doi.org/10.1016/j.cbpa.2017.07.009DOI Listing

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