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Competitive growth in synthetic cells. Lipid vesicles carrying a dipeptide catalyst produce a hydrophobic dipeptide from precursors inside the vesicles. The hydrophobic dipeptides accumulate in the vesicle membrane. b) Membranes with embedded dipeptides show an enhanced uptake of lipids and can grow by consuming lipids from vesicles that do not carry the dipeptide catalyst. Redrawn from Ref. [74].
