6533b7cefe1ef96bd1257255

RESEARCH PRODUCT

Complex Regulatory Networks Governing Production of the Glycopeptide A40926

Stefano DonadioRosa AlduinaMargherita Sosio

subject

0301 basic medicineMicrobiology (medical)medicine.drug_class030106 microbiologyAntibioticsInfectious DiseaseReviewGlycopeptide antibioticBiologyLuxR solomedicine.disease_causeBiochemistryMicrobiologyMicrobiology03 medical and health sciencesStrRValinemedicinePharmacology (medical)General Pharmacology Toxicology and PharmaceuticsA40926Regulatory geneRegulator geneTeicoplaninlcsh:RM1-950DalbavancinLALA40926; Dalbavancin; Dbv cluster; Glycopeptide antibiotics; LAL; LuxR solo; Regulatory genes; StrR; Microbiology; Biochemistry; Pharmacology Toxicology and Pharmaceutics (all); Microbiology (medical); Infectious Diseases; Pharmacology (medical)regulatory genesGlycopeptidelcsh:Therapeutics. PharmacologyInfectious DiseasesDalbavancinStaphylococcus aureusPharmacology Toxicology and Pharmaceutics (all)Dbv clusterVancomycinglycopeptide antibioticsmedicine.drug

description

Glycopeptides (GPAs) are an important class of antibiotics, with vancomycin and teicoplanin being used in the last 40 years as drugs of last resort to treat infections caused by Gram-positive pathogens, including methicillin-resistant Staphylococcus aureus. A few new GPAs have since reached the market. One of them is dalbavancin, a derivative of A40926 produced by the actinomycete Nonomuraea sp. ATCC 39727, recently classified as N. gerenzanensis. This review summarizes what we currently know on the multilevel regulatory processes governing production of the glycopeptide A40926 and the different approaches used to increase antibiotic yields. Some nutrients, e.g., valine, l-glutamine and maltodextrin, and some endogenous proteins, e.g., Dbv3, Dbv4 and RpoBR, have a positive role on A40926 biosynthesis, while other factors, e.g., phosphate, ammonium and Dbv23, have a negative effect. Overall, the results available so far point to a complex regulatory network controlling A40926 in the native producing strain.

yearjournalcountryeditionlanguage
2018-04-01Antibiotics
https://doi.org/10.3390/antibiotics7020030