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Pharmacology of Bacterial Infections
Biochemical and Molecular Principles of Drug Action Biochemical and Molecular Principles of Drug Action
27
Pharmacology
Professional
03/29/2012

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Cards

Term
Camptothecins
Definition
Block pass joining in Topo II
Term
Type II topo inhibitors
Definition
Quinolone antibiotics
Term
Rifampin
Definition
blocks elongation by complexing with the β subunit of RNA polymerase
Term
bind to and inhibit the activity of 16S rRNA in the 30S subunit
Definition
Aminoglycosides, spectinomycin, and tetracyclines
Term
bind to and inhibit the activity of 23S rRNA in the 50S subunit
Definition
Macrolides, chloramphenicol, lincosamides, streptogramins, oxazolidinones, and pleuromutilins
Term
quinolone antibiotics
Definition
Nalidixic acid and ciprofloxacin
inhibit bacterial type II topoisomerase
Term
Nalidixic acid and ciprofloxacin
Definition
quinolone antibiotics
inhibit bacterial type II topoisomerase
Term
Rifampin and rifabutin
Definition
inhibit bacterial DNA-dependent RNA polymerase
Term
Streptomycin and gentamicin
Definition
targeting the 30S ribosomal subunit
aminoglycosides
Term
Tetracycline and doxycycline
Definition
tetracyclines
targeting the 30S ribosomal subunit
Tigecycline is a glycylcycline
Term
tetracyclines
Definition
Tetracycline and doxycycline
Term
aminoglycoside action
Definition
Induce protein misreading and that the misread (abnormal) proteins allow higher concentrations of aminoglycosides to enter the cell and halt protein synthesis
Term
antimicrobial drugs targeting the 50S ribosomal subunit
Definition
Chloramphenicol, erythromycin (a macrolide), clindamycin (a lincosamide), quinupristin (a streptogramin), dalfopristin (a streptogramin), linezolid (an oxazolidinone), and retapamulin (a pleuromutilin)
Term
Erythromycin
Definition
binds to a specific segment of 23S rRNA and blocks the exit tunnel from which nascent peptides emerge
Term
Clindamycin and chloramphenicol
Definition
have partially overlapping binding sites on the 50S ribosomal subunit
Term
Inhibitors of cell wall synthesis
Definition
Pinicillins
Term
Inhibitors of transcription and translation
Definition
Macrolides
Term
Inhibitors of DNA synthesis and integrity
Definition
Quinolones
Term
bind the D-Ala-D-Ala terminus of the bactoprenol-conjugated murein monomer unit and thereby prevent the PGT-mediated addition of murein monomer to the growing peptidoglycan chain
Definition
Vancomycin, telavancin, and teicoplanin
Term
β-lactam antibiotics
Definition
penicillins, cephalosporins, monobactams, and carbapenems) inhibit the transpeptidase enzymes that cross-link adjacent peptidoglycan polymers
Term
FAS1 is inhibited by
Definition
pyrazinamide
Term
FAS2 is inhibited by
Definition
isoniazid
Term
β-Lactam toxicity
Definition
In the absence of modification, human proteins are generally nonantigenic. β-Lactams can modify amino groups on human proteins, creating an immunogenic β-lactam hapten. This new antigenic determinant can be recognized as “nonself” by antibodies of the host immune system.
Term
resistance to B-lactam agents
Definition
Pharmacologists have addressed this mechanism of resistance: (1) by developing new β-lactam agents, the second- and third-generation cephalosporins that are resistant to degradation by many β-lactamases; and (2) by co-administering β-lactam “decoys,” such as clavulanic acid and sulbactam, that serve as β-lactamase inhibitors
Term
Inhibition of synthesis of murein monomers
Definition
fosfomycin and cycloserine
Term
Inhibition of polymerization of monomers into murein polymers
Definition
vancomycin, teicoplanin, telavancin, and bacitracin
Term
Inhibition of cross-linking of polymers to complete the wall
Definition
penicillins, cephalosporins, monobactams, and carbapenem
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