Bafilomycins Produced in Culture by <i>Streptomyces</i> spp. Isolated from Marine Habitats Are Potent Inhibitors of Autophagy
作者:Gavin Carr、David E. Williams、Ana R. Díaz-Marrero、Brian O. Patrick、Helen Bottriell、Aruna D. Balgi、Elizabeth Donohue、Michel Roberge、Raymond J. Andersen
DOI:10.1021/np900632r
日期:2010.3.26
Five new bafilomycins. F (1) to J (5), have been isolated from laboratory Cultures of two Streptomyces spp. obtained front marine sediments collected in British Columbia, and their Structures have been elucidated by detailed analysis of spectroscopic data and the synthesis of model compounds. The new bafilomycins F (1), G (2), H (3), and J (5) alone with several co-occurring known analogues showed potent inhibition of autophagy in microscopy and biochemical assays. The thiomorpholinone fragment present in bafilomycin F (1) has not previously been found in a natural product.