Oxygen plays a central role in biomolecular structures and functions, with 17O NMR emerging as a powerful tool for elucidating biomolecular properties. However, the low natural abundance of the NMR-active isotope, 17O (0.0373%), presents a significant hurdle to its widespread application. Here, we introduce a rapid and cost-effective approach for amino acid-specific 17O-labeling of recombinant proteins. Using a common bacterial expression system and with a 30-minute rapid synthesis protocol of...
Towards cost-effective side-chain isotope labelling of proteins expressed in human cells
Towards cost-effective side-chain isotope labelling of proteins expressed in human cells
Abstract
Side chain isotope labelling is a powerful tool to study protein structure and interactions by NMR spectroscopy. 1H,13C labelling of side-chain methyl groups in a deuterated background allows studying large molecules, while side-chain aromatic groups are highly sensitive to the interaction with ligands, drugs, and other proteins. In E. coli, side chain labelling is performed by substituting amino acids with isotope-labelled precursors. However, proteins...
[NMR paper] Cost-effective large-scale expression of proteins for NMR studies.
Cost-effective large-scale expression of proteins for NMR studies.
Related Articles Cost-effective large-scale expression of proteins for NMR studies.
J Biomol NMR. 2018 May 19;:
Authors: Klopp J, Winterhalter A, Gébleux R, Scherer-Becker D, Ostermeier C, Gossert AD
Abstract
We present protocols for high-level expression of isotope-labelled proteins in E. coli in cost-effective ways. This includes production of large amounts of unlabeled proteins and 13C-methyl methionine labeling in rich media, where yields of up to a gram of...
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05-21-2018 06:16 PM
Cost-effective large-scale expression of proteins for NMR studies
Cost-effective large-scale expression of proteins for NMR studies
Abstract
We present protocols for high-level expression of isotope-labelled proteins in E. coli in cost-effective ways. This includes production of large amounts of unlabeled proteins and 13C-methyl methionine labeling in rich media, where yields of up to a gram of soluble protein per liter of culture are reached. Procedures for uniform isotope labeling of 2H, 13C and 15N using auto-induction or isopropyl-β-d-1-thiogalactopyranoside-induction are described, with primary focus on...
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05-19-2018 05:41 PM
[NMR paper] Cost-effective method for the preparation of uniformly labeled myristoylated proteins for NMR measurements.
Cost-effective method for the preparation of uniformly labeled myristoylated proteins for NMR measurements.
Related Articles Cost-effective method for the preparation of uniformly labeled myristoylated proteins for NMR measurements.
Protein Expr Purif. 2014 Mar 21;
Authors: Kroupa T, Prchal J, Doležal M, Ruml T, Hrabal R
Abstract
Nuclear magnetic resonance (NMR) is a powerful technique for solving protein structures orstudying their interactions. However, it requires molecules labeled with NMR sensitive isotopes like carbon(13)C and...
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03-26-2014 12:44 PM
Cost-effective method for the preparation of uniformly labeled myristoylated proteins for NMR measurements
Cost-effective method for the preparation of uniformly labeled myristoylated proteins for NMR measurements
Publication date: Available online 21 March 2014
Source:Protein Expression and Purification</br>
Author(s): Tomáš Kroupa , Jan Prchal , Michal Doležal , Tomáš Ruml , Richard Hrabal</br>
Nuclear magnetic resonance (NMR) is a powerful technique for solving protein structures orstudying their interactions. However, it requires molecules labeled with NMR sensitive isotopes like carbon13C and nitrogen15N. The recombinant expression of labeled proteins is simple...
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03-22-2014 01:28 AM
A cost-effective look at proteins - with a little help from robotics - Cordis News
http://www.bionmr.com//t3.gstatic.com/images?q=tbn:ANd9GcTypMhbcsoTBmkGzm1ZmzjTHj-b-AsNVL4y8L03Y0oBfj2cCZUDv2gZmGEzmim-0VUKjKStcwU
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A cost-effective look at proteins - with a little help from robotics
Cordis News
Until now, a number of methods have been used to study static protein structures, including X-ray crystallography and nuclear magnetic resonance. However, these methods are of no use for proteins that are on the move; analytical methods, computer ...
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A cost-effective look at proteins - with a little help from...
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09-14-2013 01:46 AM
[NMR paper] High-level bacterial expression and 15N-alanine-labeling of bovine trypsin. Applicati
High-level bacterial expression and 15N-alanine-labeling of bovine trypsin. Application to the study of trypsin-inhibitor complexes and trypsinogen activation by NMR spectroscopy.
Related Articles High-level bacterial expression and 15N-alanine-labeling of bovine trypsin. Application to the study of trypsin-inhibitor complexes and trypsinogen activation by NMR spectroscopy.
Biochemistry. 2001 May 29;40(21):6275-83
Authors: Peterson FC, Gordon NC, Gettins PG
We describe here the high-level expression of bovine trypsinogen in E. coli, its...