Elucidation and partial NMR assignment of monosulfated maitotoxins from the Caribbean
2019; Elsevier BV; Volume: 164; Linguagem: Inglês
10.1016/j.toxicon.2019.03.026
ISSN1879-3150
AutoresEugene P. Mazzola, Jonathan R. Deeds, Whitney L. Stutts, Clark D. Ridge, Robert Dickey, Kevin D. White, R. Thomas Williamson, Gary E. Martin,
Tópico(s)Redox biology and oxidative stress
ResumoCompounds similar to maitotoxin (MTX) have been isolated from several laboratory strains of the dinoflagellate Gambierdiscus spp. from the Caribbean. Mass spectral results suggest that these compounds differ from MTX by the loss of one sulfate group and, in some cases, the loss of one methyl group with the addition of one degree of unsaturation. NMR experiments, using approximately 50 nmol of one of these compounds, have demonstrated that the 9-sulfo group of MTX is still present, suggesting that these compounds are 40-desulfo congeners of MTX.
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