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Examples of natural and non-natural proteinaceous compartments. Structures are shown: (A), Bacteriophage P22, (PDB: 2XYZ); (B), Ferritin, (PDB: 6A4U); (C), Encapsulins, (PDB: 4PT2); (D), Artificial protein icosahedral, (PDB: 5KP9); (E), Artificial protein dodecahedron, (PDB: 5IM5); (F), Artificial 12-subunit protein cage, (PDB: 3VDX).
