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Self-assembling systems comprising intrinsically disordered protein polymers like elastin-like recombinamers.

Diana Juanes-Gusano1, Mercedes Santos1, Virginia Reboto1

  • 1BIOFORGE (Group for Advanced Materials and Nanobiotechnology) CIBER-BBN, Edificio Lucía, University of Valladolid, Valladolid, Spain.

Journal of Peptide Science : an Official Publication of the European Peptide Society
|September 21, 2021
PubMed
Summary

Intrinsically disordered proteins (IDPs) are crucial for function despite lacking stable structures. Elastin-like recombinamers (ELRs) mimic IDPs, offering tunable properties for applications in self-assembly, biomineralization, and biomedical coatings.

Keywords:
biomineralizationelastin-like recombinamers (ELRs)intrinsically disordered proteins (IDPs)order-disorderprotein domainsself-assembly

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Area of Science:

  • Biochemistry and Biomaterials Science
  • Protein Engineering and Design

Background:

  • Intrinsically disordered proteins (IDPs) lack stable structures but are functionally vital, especially in complex eukaryotic systems.
  • Elastin-like recombinamers (ELRs), inspired by elastin and engineered via recombinant techniques, mimic IDP properties.
  • The pentapeptide (VPGXG)n is a common ELR motif, with proline and glycine content contributing to disorder and hydration.

Purpose of the Study:

  • To review the design and applications of elastin-like recombinamers (ELRs) as functional mimics of intrinsically disordered proteins (IDPs).
  • To explore how incorporating ordered/disordered domains influences ELR self-assembly.
  • To discuss ELR applications in biomineralization and advanced biomedical coatings.

Main Methods:

  • Review of literature on elastin-like recombinamers (ELRs) and intrinsically disordered proteins (IDPs).
  • Analysis of sequence design strategies for ELRs, including incorporation of bioactive domains.
  • Examination of self-assembly behaviors, cross-linking techniques, and material properties of ELRs.

Main Results:

  • ELRs can be engineered to self-assemble into functional structures like vesicles and micelles.
  • Controlled introduction of order- and disorder-promoting domains modulates ELR self-assembly.
  • Chemically cross-linked ELRs show potential in biomineralization, while multivalent IDP-based coatings offer biomedical applications.

Conclusions:

  • Elastin-like recombinamers (ELRs) are versatile biomaterials that effectively mimic intrinsically disordered proteins (IDPs).
  • Tailored ELR sequences and structures enable diverse applications, from nanoscale assemblies to advanced biomedical materials.
  • ELRs hold significant promise for future innovations in biomaterials and regenerative medicine.