RT Journal Article T1 Paulomycin G, a New Natural Product with Cytotoxic Activity against Tumor Cell Lines Produced by Deep-Sea Sediment Derived Micromonospora matsumotoense M-412 from the Aviles Canyon in the Cantabrian Sea A1 Sarmiento-Vizcaino, Aida A1 Brana, Alfredo F. A1 Perez-Victoria, Ignacio A1 Martin, Jesus A1 de Pedro, Nuria A1 de la Cruz, Mercedes A1 Diaz, Caridad A1 Vicente, Francisca A1 Acuna, Jose L. A1 Reyes, Fernando A1 Garcia, Luis A. A1 Blanco, Gloria K1 paulomycins K1 Micromonospora K1 antitumor K1 Cantabrian Sea-derived actinobacteria K1 Streptomyces-albus K1 Strategies K1 Antitumor K1 Sponge AB The present article describes a structurally novel natural product of the paulomycin family, designated as paulomycin G (1), obtained from the marine strain Micromonospora matsumotoense M-412, isolated from Cantabrian Sea sediments collected at 2000 m depth during an oceanographic expedition to the submarine Avils Canyon. Paulomycin G is structurally unique since-to our knowledge-it is the first member of the paulomycin family of antibiotics lacking the paulomycose moiety. It is also the smallest bioactive paulomycin reported. Its structure was determined using HRMS and 1D and 2D NMR spectroscopy. This novel natural product displays strong cytotoxic activities against different human tumour cell lines, such as pancreatic adenocarcinoma (MiaPaca2), breast adenocarcinoma (MCF-7), and hepatocellular carcinoma (HepG2). The compound did not show any significant bioactivity when tested against a panel of bacterial and fungal pathogens. PB Mdpi YR 2017 FD 2017-09-01 LK http://hdl.handle.net/10668/19300 UL http://hdl.handle.net/10668/19300 LA en DS RISalud RD Apr 6, 2025