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Photoactivatable mussel-based underwater adhesive proteins by an expanded genetic code

Title data

Hauf, Mathias ; Richter, Florian ; Schneider, Tobias ; Faidt, Thomas ; Martins, Berta M. ; Baumann, Tobias ; Durkin, Patrick ; Dobbek, Holger ; Jacobs, Karin ; Möglich, Andreas ; Budisa, Nediljko:
Photoactivatable mussel-based underwater adhesive proteins by an expanded genetic code.
In: ChemBioChem. (2017) .
ISSN 1439-7633
DOI: https://doi.org/10.1002/cbic.201700327

Abstract in another language

Marine mussels exhibit potent underwater adhesion abilities under hostile conditions employing 3,4-dihydroxy-phenylalanine (Dopa)-rich mussel-adhesive proteins (MAPs). However, their recombinant production is a major biotechnological challenge. Here, we have developed a novel strategy based on genetic code expansion by engineering efficient aminoacyl-tRNA synthetases (aaRSs) for the photocaged non-canonical amino acid (ncAA) ortho-nitrobenzyl Dopa (ONB-Dopa). The engineered ONB-DopaRS enables in vivo production of MAP type 5 site-specifically equipped with multiple instances of ONB-Dopa yielding spatiotemporally controlled underwater adhesives. Upon exposure to UV light, these proteins feature elevated wet adhesion properties highlighting a novel concept for recombinant production of photocaged bioadhesives.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: aminoacyl-tRNA synthetase; atomic force microscopy based force spectroscopy; computational enzyme design; Dopa; photocaged mussel adhesive protein
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Biochemistry > Chair Biochemistry - Univ.-Prof. Dr. Andreas Möglich
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Biochemistry
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 570 Life sciences, biology
Date Deposited: 30 Jun 2017 08:52
Last Modified: 30 Jun 2017 08:52
URI: https://eref.uni-bayreuth.de/id/eprint/38216