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- W4224304859 abstract "The method based on the combination of Raman spectroscopy and principal component analysis (PCA) was applied to the set of peptide and protein toxins from animal venoms and to synthetic analogues of peptides. The study demonstrated the possibility of toxin classification according to their primary and secondary structures based on Raman spectroscopy. The method described here allows discrimination of snake venom three-finger toxins from predatory marine mollusks α-conotoxins. Moreover, PCA of the Raman spectra of toxins revealed differences within the group of three-finger toxins and also within the group of conotoxins, related to their spatial structure. In particular, on the basis of the developed technique it is possible to distinguish the disulfide isomers of the same peptide toxin. The results obtained have been confirmed by bioinformatic methods. So, we have proposed a method for the rapid analysis of newly discovered venom-derived protein or peptide toxins by establishing their similarity with other already studied toxins by referring to a particular class. Taking into account a low specimen consumption by Raman spectroscopy, the proposed method could represent a first step in the study of toxins from rare and/or endangered venomous animals. The ability to distinguish configuration of disulfide bonds allows to synthesize the correct isomer of the toxin." @default.
- W4224304859 created "2022-04-26" @default.
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- W4224304859 date "2022-10-01" @default.
- W4224304859 modified "2023-09-26" @default.
- W4224304859 title "Toxins’ classification through Raman spectroscopy with principal component analysis" @default.
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- W4224304859 doi "https://doi.org/10.1016/j.saa.2022.121276" @default.
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