https://www.selleckchem.com/pr....oducts/4-phenylbutyr
Sample preparation for NMR studies of G-protein coupled receptors faces special requirements Proteins need to be stable for prolonged measurements at elevated temperatures, they should ideally be uniformly labeled with the stable isotopes 13C, 15N, and all carbon-bound protons should be replaced by deuterons. In addition, certain NMR experiments require protonated methyl groups in the presence of a perdeuterated background. All these requirements are most easily satisfied when using Escherichia coli as the expression
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