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Erythromycin is an antibiotic used for the treatment of a number of bacterial infections. [1] This includes respiratory tract infections, ... Mechanism of action
Another potential mechanism is premature dissociation of the peptidyl-tRNA from the ribosome. [9] Macrolide antibiotics bind reversibly to the P site on the 50S subunit of the bacterial ribosome. This action is considered to be bacteriostatic. Macrolides are actively concentrated within leukocytes, and thus are transported into the site of ...
β-Lactam antibiotics are indicated for the prevention and treatment of bacterial infections caused by susceptible organisms. At first, β-lactam antibiotics were mainly active only against gram-positive bacteria, yet the recent development of broad-spectrum β-lactam antibiotics active against various gram-negative organisms has increased their usefulness.
(For instance, vancomycin, a glycopeptide antibiotic, [6] and erythromycin, [7] a macrolide antibiotic produced by Saccharopolyspora erythraea, along with its synthetic derivatives clarithromycin and azithromycin, all share the suffixes but have notably different mechanisms of action.)
The mechanism of action for the antibacterial effect of tetracyclines relies on disrupting protein translation in bacteria, thereby damaging the ability of microbes to grow and repair; however protein translation is also disrupted in eukaryotic mitochondria leading to effects that may confound experimental results.
Some antibiotics may also damage the mitochondrion, a bacteria-derived organelle found in eukaryotic, including human, cells. [52] Mitochondrial damage cause oxidative stress in cells and has been suggested as a mechanism for side effects from fluoroquinolones. [53] They are also known to affect chloroplasts. [54]
In this video, we meet Peaches, an average barn cat who doesn’t mind blowing off work to chill with her BFF, a senior horse.Though Peaches was adopted and given a home in this family’s barn to ...
In a mechanism similar to macrolides and streptogramin B, lincosamides bind close to the peptidyl transferase center on the 23S portion of the 50S subunit of bacterial ribosomes. Under the influence of high resolution X-ray, structures of clindamycin and ribosomal subunits from bacterium have previously revealed exclusive binding to the 23S ...
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