Tunicamycin 17:1 Mixture

Tunicamycin 17:1 is a mixture of tunicamycin structural isomers that contain a 17-carbon N-acyl chain with variable branching patterns. The N-acyl chain incorporated into tunicamycins, like tunicamycin 17:1, is derived from the same pool of cellular branched-chain fatty acids (BCFAs) inStreptomycesand directly impacts the biological activity of each individual tunicamycin variant.1,2,3Purified tunicamycin 17:1 withisooranteisobranching configurations inhibits bacterial phospho-MurNAc-pentapeptide transferase (MraY) with IC50values of 0.12 and 0.9 μM, respectively.2