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Multi-Faceted Mass Spectrometric Investigation of Neuropeptides in Callinectes sapidus
JoVE Journal
Chemistry
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JoVE Journal Chemistry
Multi-Faceted Mass Spectrometric Investigation of Neuropeptides in Callinectes sapidus
DOI:

09:22 min

May 31, 2022

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Chapters

  • 00:04Introduction
  • 00:49LC-ESI-MS Analysis of Neuropeptides
  • 02:45MALDI-MS Spotting Analysis of Neuropeptides
  • 04:13MALDI-MS Imaging Analysis of Neuropeptides
  • 05:36Discovering Novel Putative Neuropeptides Using De Novo Sequencing and Transcriptome Mining for Predicted Neuropeptide Sequences
  • 06:57Results: De Novo Sequencing and MALDI-MS Imaging of Neuropeptides
  • 08:41Conclusion

Summary

Automatic Translation

Mass spectrometric characterization of neuropeptides provides sequence, quantitation, and localization information. This optimized workflow is not only useful for neuropeptide studies, but also other endogenous peptides. The protocols provided here describe sample preparation, MS acquisition, MS analysis, and database generation of neuropeptides using LC-ESI-MS, MALDI-MS spotting, and MALDI-MS imaging.

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