Auto-induction medium containing glyphosate for high-level incorporation of unusual aromatic amino acids into proteins.
Biotechniques
; 49(3): 659-61, 2010 Sep.
Article
en En
| MEDLINE
| ID: mdl-20854268
ABSTRACT
We describe the use of an auto-induction medium containing N-(phosphono-methyl)glycine (glyphosate) as a means for high-level introduction of nonstandard aromatic amino acids into a protein. We illustrate this approach by preparing maltose binding protein (MBP) wherein all eight tryptophan residues have been replaced with 6-fluorotryptophan at an incorporation level of 99.3%. Such a high level of incorporation is important for spectroscopic investigations, in particular 19F NMR, because each species' differing amino acid sequence potentially yields a different peak pattern that complicates spectral analysis.
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Base de datos:
MEDLINE
Asunto principal:
Triptófano
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Escherichia coli
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Proteínas de Unión a Maltosa
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Glicina
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Herbicidas
Idioma:
En
Revista:
Biotechniques
Año:
2010
Tipo del documento:
Article