Tyrocidine complex is a mixture of cyclic decapeptides originally isolated from B. brevis. It is active against Gram-positive and Gram-negative bacteria. It forms a complex with single- and double-stranded DNA to inhibit RNA synthesis.
Parvodicin complex is a mixture of closely related lipophilic glycopeptides originally isolated from A. parvosata. The parvodicin complex has activity against Gram-positive bacteria (MICs = 0.8-12.5 μg ml) including methicillin-resistant strains of S. aureus (MRSA), S. hemolyticus, and E. faecalis (MICs = 0.1-25 μg ml). Glycopeptide antibiotics act by preventing cell wall synthesis by binding and sequestering a cell wall precursor with a D-alanine-containing peptide.
Bacitracin complex is a bacitracin antibiotic complex composed of cyclic dipeptides that has been found inBacillus.1It is metal-dependent and is complexed to a divalent metal cation, such as Cu2+, Ni2+, Co2+, Zn2+, or Mn2+, for its activity.1,2Bacitracin complex is a mixture of bacitracin polypeptides in complex with copper. 1.Piacham, T., Isarankura-Na-Ayudhya, C., Nantasenamat, C., et al.Metalloantibiotic Mn(II)-bacitracin complex mimicking manganese superoxide dismutaseBiochem. Biophys. Res. Commun.341(4)925-930(2006) 2.Rodríguez-Uribe, N.A., Pérez-González, R., Domínguez-Mendoza, B.E., et al.Metallobacitracins: Affinity and structural study in aqueous solutionInorg. Chem. Commun.10461-70(2019)
Enniatin complex, a mixture of cyclohexadepsipeptides predominantly derived from various Fusarium species of fungi, exhibits inhibitory effects on enzymes such as acyl-CoA: cholesterol acyl transferase. Furthermore, it has demonstrated the ability to induce apoptosis in multiple cancer cell lines. In addition to these activities, the Enniatin complex possesses ionophoric, antibiotic, and in vitro hypolipidemic properties.
Quinupristin-Dalfopristin Complex is a mixture of two streptogramin antibiotics. Quinupristin-dalfopristin complex is a mixture of two streptogramin antibiotics, dalfopristin, and quinupristin. Streptogramin antibiotics are divided into types A and B, whi