Volume 57, Issue 48 pp. 15728-15732
Communication
Open Access

Polymerizing Like Mussels Do: Toward Synthetic Mussel Foot Proteins and Resistant Glues

Justus Horsch

Justus Horsch

Laboratory for Organic Synthesis of Functional Systems, Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489 Berlin, Germany

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Dr. Patrick Wilke

Dr. Patrick Wilke

Laboratory for Organic Synthesis of Functional Systems, Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489 Berlin, Germany

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Matthias Pretzler

Matthias Pretzler

Universität Wien, Fakultät für Chemie, Institut für Biophysikalische Chemie, Althanstraße 14, 1090 Wien, Austria

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Maximilian Seuss

Maximilian Seuss

Leibniz-Institut für Polymerforschung Dresden e.V., Institute of Physical Chemistry and Polymer Physics, Hohe Straße 6, 01069 Dresden, Germany

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Inga Melnyk

Inga Melnyk

Leibniz-Institut für Polymerforschung Dresden e.V., Institute of Physical Chemistry and Polymer Physics, Hohe Straße 6, 01069 Dresden, Germany

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Dario Remmler

Dario Remmler

Laboratory for Organic Synthesis of Functional Systems, Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489 Berlin, Germany

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Prof. Andreas Fery

Prof. Andreas Fery

Leibniz-Institut für Polymerforschung Dresden e.V., Institute of Physical Chemistry and Polymer Physics, Hohe Straße 6, 01069 Dresden, Germany

Technische Universität Dresden, Chair of Physical Chemistry of Polymeric Materials, Hohe Straße 6, 01069 Dresden, Germany

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Prof. Annette Rompel

Prof. Annette Rompel

Universität Wien, Fakultät für Chemie, Institut für Biophysikalische Chemie, Althanstraße 14, 1090 Wien, Austria

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Prof. Hans G. Börner

Corresponding Author

Prof. Hans G. Börner

Laboratory for Organic Synthesis of Functional Systems, Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489 Berlin, Germany

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First published: 24 September 2018
Citations: 49

Graphical Abstract

Mussel glue protein mimics: Adhesive mussel-inspired protein analogues were prepared by an enzyme-induced polymerization of oligopeptides. The polymers are generated by the formation of cysteinyldopa linkages that contribute to cohesion and adhesion of the protein analogues. Aspects of adhesion properties of mussel foot proteins were mimicked without the need to extract and purify or express native proteins.

Abstract

A novel strategy to generate adhesive protein analogues by enzyme-induced polymerization of peptides is reported. Peptide polymerization relies on tyrosinase oxidation of tyrosine residues to Dopaquinones, which rapidly form cysteinyldopa-moieties with free thiols from cysteine residues, thereby linking unimers and generating adhesive polymers. The resulting artificial protein analogues show strong adsorption to different surfaces, even resisting hypersaline conditions. Remarkable adhesion energies of up to 10.9 mJ m−2 are found in single adhesion events and average values are superior to those reported for mussel foot proteins that constitute the gluing interfaces.

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