Figure 2From: Activation and enhancement of Fredericamycin A production in deepsea-derived Streptomyces somaliensis SCSIO ZH66 by using ribosome engineering and response surface methodologyStructure determination of FDM A. (A) Chemical structure of FDM A. (B) HRMS data of FDM A. (C) 1H NMR spectrum of FDM A in DMSO-d 6 . (D) 13C NMR spectrum of FDM A in DMSO-d 6 . Back to article page