Search results
Results from the WOW.Com Content Network
Thus, it binds to the ribosomal A site and participates in peptide bond formation, producing peptidyl-puromycin. However, it does not engage in translocation and quickly dissociates from the ribosome, causing a premature termination of polypeptide synthesis. Streptogramins also cause premature release of the peptide chain. [17]
A well-known member of this antibiotic class, chloramphenicol, acts by inhibiting peptide bond formation, with recent 3D-structural studies showing two different binding sites depending on the species of ribosome. Numerous mutations in domains of the 23S rRNA with Peptidyl transferase activity have resulted in antibiotic resistance.
The 30S subunit is the target of antibiotics such as tetracycline and gentamicin. [11] These antibiotics specifically target the prokaryotic ribosomes, hence their usefulness in treating bacterial infections in eukaryotes. Tetracycline interacts with H27 in the small subunit as well as binding to the A-site in the large subunit. [11]
Iboxamycin is a synthetic lincosamide or oxepanoprolinamide antibiotic.It binds to the bacterial ribosome in both Gram-negative and Gram-positive bacteria and it has been found to effective against bacteria which are resistant to other antibiotics that target the large ribosomal subunit.
The following is a list of antibiotics. ... for a list of antibiotics sorted by target ... reversibly to the subunit 50S of the bacterial ribosome, ...
The MexXY component of the MexXY-OprM multidrug efflux system of P. aeruginosa is inducible by antibiotics that target ribosomes via the PA5471 gene product. [15] Efflux pumps have also been shown to play a role in biofilm formation. However, the substrates for such pumps, and whether changes in their efflux activity affect biofilm formation ...
As human and bacteria both have ribosomes, streptomycin has significant side effects in humans. At low concentrations, however, streptomycin inhibits only bacterial growth. [18] Streptomycin is an antibiotic that inhibits both Gram-positive and Gram-negative bacteria, [19] and is therefore a useful broad-spectrum antibiotic.
The incidence of inner ear toxicity varies from 7 to 90%, depending on the types of antibiotics used, susceptibility of the patient to such antibiotics, and the duration of antibiotic administration. [20] Another serious and disabling side effect of aminoglycoside use is vestibular ototoxicity. [19]