Design and Characterization of Fibers and Bionanocomposites Using the Coiled-Coil Domain of Cartilage Oligomeric Matrix Protein

  • Priya Katyal
  • Jin Kim MontclareEmail author
Part of the Methods in Molecular Biology book series (MIMB, volume 1798)


Tremendous effort has been dedicated to the design and assembly of bioinspired protein-based architectures with potential applications in drug delivery, tissue engineering, biosensing, and bioimaging. Here, we describe our strategy to generate fibers and bionanocomposites using the coiled-coil domain of cartilage oligomeric matrix protein (COMPcc). Our construct, Q, engineered by swapping particular regions of COMPcc to optimize surface charge, self-assembles to form nanofibers. The Q protein nanofibers can efficiently bind curcumin to form robust mesofibers that can be potentially used for drug delivery and biomedical applications. In addition, using the same Q protein, we describe the biotemplation of gold nanoparticles (AuNP) in the presence and absence of the hexahistidine tag (His-tag). The Q bearing His-tag·AuNP (Q·AuNP) readily deposits on electrode surfaces, while Q without His-tag·AuNP (Qx·AuNP) stabilizes the soluble protein·gold bionanocomposites for several days without aggregating.

Key words

Self-assembly Fibers Gold nanoparticles Coiled-coil protein Cartilage oligomeric matrix protein Domain-swapped Bionanocomposites 



This work was supported by the National Science Foundation under award number NSF DMR-1728858.


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© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Chemical and Biomolecular EngineeringTandon School of Engineering, New York UniversityBrooklynUSA
  2. 2.Department of BiochemistrySUNY Downstate Medical CenterBrooklynUSA
  3. 3.Department of BiomaterialsNew York University College of DentistryNew YorkUSA
  4. 4.Department of ChemistryNew York UniversityNew YorkUSA

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