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  2. Beta-lactamase - Wikipedia

    en.wikipedia.org/wiki/Beta-lactamase

    Penicillinase was the first β-lactamase to be identified. It was first isolated by Abraham and Chain in 1940 from E. coli (which are gram-negative) even before penicillin entered clinical use, [ 5 ] but penicillinase production quickly spread to bacteria that previously did not produce it or produced it only rarely.

  3. Penicillin for Cats: Uses, Dosage, & Side Effects - AOL

    www.aol.com/lifestyle/penicillin-cats-uses...

    The post Penicillin for Cats: Uses, Dosage, & Side Effects appeared first on CatTime. It falls under the beta-lactam class of antibiotics and is primarily used to treat bacterial infections.

  4. β-Lactam antibiotic - Wikipedia

    en.wikipedia.org/wiki/Β-Lactam_antibiotic

    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.

  5. Side effects of penicillin - Wikipedia

    en.wikipedia.org/wiki/Side_effects_of_penicillin

    The side effects of penicillin can be altered by taking other medications at the same time. Taking oral contraceptives along with penicillin may lower the effects of the contraceptive. When probenecid is used concurrently with penicillin, kidney excretion of probenecid is decreased resulting in higher blood levels of penicillin in the ...

  6. Penicillin-binding proteins - Wikipedia

    en.wikipedia.org/wiki/Penicillin-binding_proteins

    PBPs normally catalyze the cross-linking of the bacterial cell wall, but they can be permanently inhibited by penicillin and other β-lactam antibiotics. (NAM = N-acetylmuramic acid; NAG = N-acetylglucosamine) [2] Penicillin-binding proteins (PBPs) are a group of proteins that are characterized by their affinity for and binding of penicillin.

  7. The cats became severely ill with bird flu, authorities said, after they ate the same brand of raw pet food, the latest in a string of pet deaths linked to the virus.

  8. Toddler draws all over white furniture, and people can't ...

    www.aol.com/toddler-draws-over-white-furniture...

    Interior designer Grace Kaage's 2-year-old son, Christian, drew all over her white couch. See how she responded to her toddler drawing on her white furniture.

  9. Chloramphenicol acetyltransferase - Wikipedia

    en.wikipedia.org/wiki/Chloramphenicol_acetyl...

    Chloramphenicol acetyltransferase (or CAT) is a bacterial enzyme (EC 2.3.1.28) [1] that detoxifies the antibiotic chloramphenicol and is responsible for chloramphenicol resistance in bacteria. [2] This enzyme covalently attaches an acetyl group from acetyl-CoA to chloramphenicol, which prevents chloramphenicol from binding to ribosomes .