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Hypothetical pathway for the biosynthesis of aerothionin in A. cavernicola and bastadins in I. basta according to Tymiak and Rinehart [21] and Leone-Stumpf [22]. Data available for biological halogenation reactions strongly suggest the involvement of flavin-dependent halogenases in the bromination reactions occurring during aerothionin and bastadin biosynthesis. The compound in brackets has not been isolated yet.
