NCIt definition : The zinc salt form of bacitracin, a complex of cyclic polypeptide antibiotics, mainly
bacitracin A, produced by spore-forming organisms belonging to the licheniformin group
of the Bacillus subtilis with antibacterial activity. Bacitracin zinc binds to C55-isoprenyl
pyrophosphate, a biphosphate lipid transport molecule that carries the building blocks
of the peptidoglycan bacterial cell wall, thereby interfering with the enzymatic dephosphorylation
of the C55-isoprenyl pyrophosphate and preventing peptidoglycan synthesis which leads
to cell lysis.;