Catenulobactins A and B, Heterocyclic Peptides from Culturing <i>Catenuloplanes</i> sp. with a Mycolic Acid-Containing Bacterium
作者:Shotaro Hoshino、Masahiro Ozeki、Takayoshi Awakawa、Hiroyuki Morita、Hiroyasu Onaka、Ikuro Abe
DOI:10.1021/acs.jnatprod.8b00261
日期:2018.9.28
The production of two new heterocyclic peptide isomers, catenulobactins A (1) and B (2), in cultures of Catenuloplanes sp. RD067331 was significantly increased when it was cocultured with a mycolic acid-containing bacterium. The planar structures and absolute configurations of the catenulobactins were determined based on NMR/MS and chiral-phase GC-MS analyses. Catenulobactin B (2) displayed Fe(III)-chelating activity and moderate cytotoxicity against P388 murine leukemia cells.