Arthrofactin, a bioactive cyclic lipopeptide from Pseudomonas sp. MIS38, was reinvestigated for its structural and stereochemical features due to discrepancies between the genetics-based sequence prediction and the currently suggested structure. The structure of arthrofactin and its derivatives was reassigned on the basis of chiral HPLC analysis and extensive NMR and MS experiments. Furthermore, derivatives of arthrofactin were discovered.
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