Multiple site-selective insertions of noncanonical amino acids into sequence-repetitive polypeptides
Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim..
A simple and efficient method is described for the introduction of noncanonical amino acids at multiple, defined sites within recombinant polypeptide sequences. Escherichia coli MRA30, a bacterial host strain with attenuated activity of release factor 1 (RF1), was assessed for its ability to support incorporation of a diverse range of noncanonical amino acids in response to multiple encoded amber (TAG) codons within genes derived from superfolder GFP and an elastin-mimetic protein polymer. Suppression efficiency and protein yield depended on the identity of the orthogonal aminoacyl-tRNA synthetase/tRNA(CUA) pair and the noncanonical amino acid. Elastin-mimetic protein polymers were prepared in which noncanonical amino acid derivatives were incorporated at up to 22 specific sites within the polypeptide sequence with high substitution efficiency. The identities and positions of the variant residues were confirmed by mass spectrometric analysis of the full-length polypeptides and proteolytic cleavage fragments from thermolysin digestion. The data suggest that this multisite suppression approach permits the preparation of protein-based materials in which novel chemical functionalities can be introduced at precisely defined positions within the polypeptide sequence.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2013 |
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| Erschienen: |
2013 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:14 |
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| Enthalten in: |
Chembiochem : a European journal of chemical biology - 14(2013), 8 vom: 27. Mai, Seite 968-78 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Wu, I-Lin [VerfasserIn] |
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| Links: |
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| Themen: |
9007-58-3 |
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| Anmerkungen: |
Date Completed 03.12.2013 Date Revised 21.10.2021 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1002/cbic.201300069 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM227059204 |
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| 245 | 1 | 0 | |a Multiple site-selective insertions of noncanonical amino acids into sequence-repetitive polypeptides |
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| 500 | |a Date Revised 21.10.2021 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. | ||
| 520 | |a A simple and efficient method is described for the introduction of noncanonical amino acids at multiple, defined sites within recombinant polypeptide sequences. Escherichia coli MRA30, a bacterial host strain with attenuated activity of release factor 1 (RF1), was assessed for its ability to support incorporation of a diverse range of noncanonical amino acids in response to multiple encoded amber (TAG) codons within genes derived from superfolder GFP and an elastin-mimetic protein polymer. Suppression efficiency and protein yield depended on the identity of the orthogonal aminoacyl-tRNA synthetase/tRNA(CUA) pair and the noncanonical amino acid. Elastin-mimetic protein polymers were prepared in which noncanonical amino acid derivatives were incorporated at up to 22 specific sites within the polypeptide sequence with high substitution efficiency. The identities and positions of the variant residues were confirmed by mass spectrometric analysis of the full-length polypeptides and proteolytic cleavage fragments from thermolysin digestion. The data suggest that this multisite suppression approach permits the preparation of protein-based materials in which novel chemical functionalities can be introduced at precisely defined positions within the polypeptide sequence | ||
| 650 | 4 | |a Journal Article | |
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| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
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| 700 | 1 | |a Carpenter Desai, Holly E |e verfasserin |4 aut | |
| 700 | 1 | |a Mehl, Ryan A |e verfasserin |4 aut | |
| 700 | 1 | |a Giorgi, Gianluca |e verfasserin |4 aut | |
| 700 | 1 | |a Conticello, Vincent P |e verfasserin |4 aut | |
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