Protein deuteration via algal amino acids to circumvent proton back-exchange for (1)H-detected solid-state NMR
Protein deuteration via algal amino acids to circumvent proton back-exchange for (1)H-detected solid-state NMR
With perdeuteration, solid-state NMR spectroscopy of large proteins suffers from incomplete amide-proton back-exchange. Using a 72 kDa micro-crystalline protein, we show that deuteration exclusively via deuterated amino acids, well-established in solution to suppress sidechain protonation without proton back-exchange obstacles, provides spectral resolution comparable to perdeuterated preparations at intermediate spinning frequencies. More... |
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