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A. UPLC chromatograms, monitored at 244 nm, of S. albus J1074 and mutant S. albus B29 in which sshg_05727 and sshg_05728 have been deleted. Peaks absent in the mutant strain are labelled as compounds 6 to 10. B. Chemical structures of paulomenols B (6) and A (7) and paulomycins E (8), B (9) and A (10).
