Chiumento S, Roblin C, Kieffer-Jaquinod S, Tachon S, Leprètre C, Basset C, Aditiyarini D, Olleik H, Nicoletti C, Bornet O, Iranzo O, Maresca M, Hardré R, Fons M, Giardina T, Devillard E, Guerlesquin F, Couté Y, Atta M, Perrier J, Lafond M, Duarte V. Ruminococcin C, a promising antibiotic produced by a human gut symbiont. Sci Adv. 2019 Sep 25;5(9)


In-vivo and in-vitro produced bacteriocin samples were analyzed by Top-Down MS to characterize the thioether bridge arrangement of a new class of sactipeptides produced by the gut symbiont. This original structure confers activity against pathogenic Clostridia and other multidrug-resistant strains and have no toxicity towards eukaryotic cells. This bacteriocin should be considered as a valuable candidate for drug development.