title: Teichomycins, new antibiotics from Actinoplanes teichomyceticus nov. sp. IV. Separation and characterization of the components of teichomycin (teicoplanin).
abstract: Teichomycin (teicoplanin) was found to be a mixture of five closely related components of similar polarity, designated T-A2-1, 2, 3, 4 and 5 and of one more polar component, designated T-A3. The separation of the single components was achieved by reverse phase partition chromatography and their physico-chemical and biological properties were compared. The results show that 1) the five major components have the same molecular size of about 1,900; 2) they contain the same ionization function, i.e., a carboxyl group and an amino group which form a zwitterion, and four phenolic groups; 3) they differ in a side aliphatic chain. The component T-A3 is not described.
mesh_terms: D000192:Actinomycetales / Q000254:growth & development*; D000818:Animals; D000900:Anti-Bacterial Agents / Q000302:isolation & purification* / Q000633:toxicity; D055598:Chemical Phenomena; D002621:Chemistry; D002851:Chromatography, High Pressure Liquid; D007928:Lethal Dose 50; D009682:Magnetic Resonance Spectroscopy; D051379:Mice; D008826:Microbial Sensitivity Tests; D013053:Spectrophotometry; D017334:Teicoplanin
chemical_list: D000900:Anti-Bacterial Agents; D017334:Teicoplanin