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Metoder for å identifisere NMR resonanser av<sup> 13</sup> C-Dimetyl N-terminale aminer på reduktivt Denaturert Proteins
JoVE Journal
Chemie
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JoVE Journal Chemie
Methods to Identify the NMR Resonances of the 13C-Dimethyl N-terminal Amine on Reductively Methylated Proteins
DOI:

13:59 min

December 12, 2013

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Kapitel

  • 00:05Titel
  • 01:34Reductive Methylation of Lysozyme
  • 05:09Sample Preparation for NMR Analysis
  • 08:01Aminopeptidase Degradation of Lysozyme
  • 09:34Results: NMR and MALDI MS Analysis of Reductively Methylated Lysozyme Samples
  • 13:38Conclusion

Summary

Automatische Übersetzung

Two methods for assigning the α- and ε-dimethylamine nuclear magnetic resonance signals of a reductively 13C-methylated N-terminal lysine are described. One method utilizes the pH-induced selectivity of the reductive methylation reaction, and the other uses aminopeptidase to selectively remove the N-terminal lysine.

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