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Related Concept Videos

Protein Complex Assembly02:41

Protein Complex Assembly

Proteins can form homomeric complexes with another unit of the same protein or heteromeric complexes with different types.  Most protein complexes self-assemble spontaneously via ordered pathways, while some proteins need assembly factors that guide their proper assembly. Despite the crowded intracellular environment, proteins usually interact with their correct partners and form functional complexes.
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Synthesis and Characterization of Self-Assembled Metal-Organic Framework Monolayers Using Polymer-Coated Particles
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Synthesis and Characterization of Self-Assembled Metal-Organic Framework Monolayers Using Polymer-Coated Particles

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Metal-directed protein self-assembly.

Eric N Salgado1, Robert J Radford, F Akif Tezcan

  • 1Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, USA.

Accounts of Chemical Research
|March 3, 2010
PubMed
Summary
This summary is machine-generated.

Metal-directed protein self-assembly (MDPSA) uses metal ions to control protein-protein interactions (PPIs) for biomaterial design. This approach engineers novel protein assemblies and metal coordination environments.

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05:58

Detecting and Characterizing Protein Self-Assembly In Vivo by Flow Cytometry

Published on: July 17, 2019

Area of Science:

  • Biochemistry
  • Materials Science
  • Supramolecular Chemistry

Background:

  • Proteins are fundamental building blocks for biological nanostructures, with most existing as stable oligomers formed via noncovalent interactions.
  • Understanding and controlling protein-protein interactions (PPIs) is key to developing novel biomaterials.
  • Metal-directed protein self-assembly (MDPSA) offers a new strategy to control PPIs by leveraging metal-ligand interactions.

Purpose of the Study:

  • To introduce and explore the concept of metal-directed protein self-assembly (MDPSA).
  • To address the challenges of using entire proteins as building blocks in supramolecular chemistry.
  • To demonstrate the potential for engineering novel biomaterials through controlled protein assembly.

Main Methods:

  • Utilizing supramolecular coordination chemistry principles adapted for protein building blocks.
  • Employing a model protein (cytochrome cb(562)) to establish foundational rules for MDPSA.
  • Implementing metal-templated interface redesign (MeTIR) to engineer protein interfaces and metal coordination environments.

Main Results:

  • Demonstrated challenges and progress in establishing ground rules for MDPSA.
  • Showcased the ability of metal ions to guide protein self-assembly into larger structures.
  • Successfully restructured noncovalent interactions at protein interfaces surrounding metal centers using MeTIR.

Conclusions:

  • MDPSA provides a powerful method for controlling protein-protein interactions and creating novel biomaterials.
  • MeTIR enables the engineering of de novo protein-protein interactions and unique metal coordination sites.
  • This work offers insights into the evolution of metalloproteins and biomolecular self-assembly.