Ramoplanin (INN) is a glycolipodepsipeptide antibiotic drug derived from strain ATCC 33076 of Actinoplanes.
[2] Its development has been fast-tracked by the U.S. Food and Drug Administration as a treatment for multiple antibiotic-resistant Clostridioides difficile infection of the gastrointestinal tract,[3] Unlike vancomycin, it is absorbed in the gastrointestinal tract, although it is unstable in the bloodstream, so can be taken only orally against Clostridioides difficile infections of the gastrointestinal tract.
[7] Ramoplanin specifically binds to and sequesters lipid intermediates I and II, preventing intracellular glycosyltransferase (MurG) and other steps of the peptidoglycan assembly system.
[8] Ramoplanin is a mixture of three related compounds that vary in the acyl group on the Asn N-terminus, with the most abundant form (shown in the infobox) being A2.[8]: Fig.
1 The biosynthesis is performed by a 33-gene cluster containing nonribosomal peptide synthetase genes and supporting enzymes for amino acid and fatty acid synthesis, revealed by sequencing of the producer strain in 2002.