Higher-Order VLP-Based Protein Macromolecular Framework Structures Assembled via Coiled-Coil Interactions.

Area of Science:

• Biomimetic materials science
• Supramolecular chemistry
• Nanotechnology

Background:

• Biological systems exhibit hierarchical organization for efficient function.
• Virus-like particles (VLPs) are self-assembled, hierarchically organized structures.
• VLPs can be used as building blocks for higher-order biomimetic materials.

Purpose of the Study:

• To develop a versatile platform for constructing higher-order catalytic materials using P22 bacteriophage VLPs.
• To overcome limitations of VLP morphology-dependent assembly in previous P22 PMF materials.
• To create a stable, amorphous protein macromolecular framework (PMF) compatible with sensitive enzymes.

Main Methods:

• Utilized coiled-coil peptide interactions to mediate P22 VLP interparticle assembly.
• Constructed a stable, amorphous protein macromolecular framework (PMF).
• Characterized the material properties of the PMF and demonstrated its use in biocatalysis.

Main Results:

• Achieved P22 VLP assembly into a stable, amorphous PMF independent of VLP morphology.
• Developed a PMF platform compatible with sensitive enzymes, preserving their functionality.
• Constructed a 3D biocatalytic material from the disordered PMF capable of single- and multistep catalysis.

Conclusions:

• Coiled-coil mediated assembly offers a versatile approach for creating higher-order protein macromolecular frameworks from VLPs.
• The developed amorphous PMF is a promising platform for advanced biomimetic materials and biocatalysis.
• This method enables the construction of functional catalytic materials with sensitive enzymes, expanding applications in synthetic biology and materials science.