Peptide-Oleate Complexes Create Novel Membrane-Bound Compartments
MOLECULAR BIOLOGY AND EVOLUTION(2020)
Abstract
A challenging question in evolutionary theory is the origin of cell division and plausible molecular mechanisms involved. Here, we made the surprising observation that complexes formed by short alpha-helical peptides and oleic acid can create multiple membrane-enclosed spaces from a single lipid vesicle. The findings suggest that such complexes may contain the molecular information necessary to initiate and sustain this process. Based on these observations, we propose a new molecular model to understand protocell division.
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Key words
cell division,protocells,giant unilamellar vesicles,oleic acid,peptides,peptide-oleate complexes,phospholipids
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