Journal
CHEMICAL SCIENCE
Volume 10, Issue 4, Pages 1046-1051Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8sc04167a
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Funding
- JSPS KAKENHI [JP 18K19143, JP17H05358, 18H05421, JP16K17931, JP17H05872]
- Grants-in-Aid for Scientific Research [18H05421] Funding Source: KAKEN
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Investigations involving the design of protein assemblies for the development of biomaterials are receiving significant attention. In nature, proteins can be driven into assemblies frequently by various non-covalent interactions. Assembly of proteins into supramolecules can be conducted under limited conditions in solution. These factors force the assembly process into an equilibrium state with low stability. Here, we report a new method for preparing assemblies using protein crystals as non-equilibrium molecular scaffolds. Protein crystals provide an ideal environment with a highly ordered packing of subunits in which the supramolecular assembled structures are formed in the crystalline matrix. Based on this feature, we demonstrate the self-assembly of supramolecular nanotubes constructed from protein crystals triggered by co-oxidation with cross-linkers. The assembly of tubes is driven by the formation of disulfide bonds to retain the intermolecular interactions within each assembly in the crystalline matrix after dissolution of the crystals.
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