NAI-857

Antibacterial class I lantibiotic. Inhibits cell wall synthesis and consequently bacterial growth by forming a complex with lipid intermediate II (Lipid II), a key intermediate in peptidoglycan biosynthesis. Interferes with late stages of cell wall biosynthesis leading to accumulation of the soluble peptidoglycan precursor UDP-N-acetylmuramic acid-pentapeptide (UDP-MurNAc-pentapeptide) in the cytoplasm less efficient than NAI-107 (AG-CN2-0307 https://adipogen.com/ag-cn2-0307-nai-107-microbisporicin.html ). Active against Streptococcus pyogenes and weak antibacterial activity against other tested Gram-positive pathogens.