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Synthese en structuurbepaling van µ-Conotoxin PIIIA-isomeren met verschillende Disulfide Connectivities
Chapters
- 00:04Title
- 00:49Solid-Phase Peptide Synthesis (SPPS), Peptide Cleavage from the Resin, and Purification of the Linear Precursor
- 03:04Selective Formation of the Disulfide Bonds
- 04:44Peptide Purification
- 05:56Peptide Analytics
- 08:04MS/MS Analysis of Disulfide Connectivity
- 09:49Results: The Sequential Walk and the Resulting NMR Solution Structure of a Rigid and a Flexible -PIIIa Isomer
- 10:30Conclusion
Cysteïne-rijke peptides vouwen in verschillende driedimensionale structuren afhankelijk van hun verbindingen bisulfide. Gerichte synthese van individuele bisulfide isomeren is vereist wanneer de buffer oxidatie leidt niet tot de gewenste bisulfide-connectiviteit. Het protocol behandelt de selectieve synthese van peptiden 3-bisulfide-gebonden en hun structurele analyse met behulp van NMR- en MS/MS studies.
