Antibiotics targeting Bacterial Cell Wall Flashcards
Dr. Gartenberg
The _____ enzyme joins bacterial sugars to make Polysaccharide chains
Transglycosylase
The ____ enzymes join the sugar-linked peptides to x-link polysaccharide chains
Transpeptidase
Normally, bacterial cell walls grow with the D-Ala D-ala being link by a _____ attached to an anyme, which then allows Glycine to come in with a substitution reaction
Serine
B-lactam antibiotics cause the amino acid ____ to irreversibly bind onto the b-lactam ring
Serine
Clavulanic acid and Tazobactam, and Avibactam are all _____ inhibitors, which is great for pharmacists to fight back!
B-lactamase
N-acetyl Glucosamine and N-acetylemuramic acid are:
Constituents of the peptidoglycan layer
Cefepime is a ___th generation Cephalosporin, which is most resistant to the B-lactamases and is true Broad spectrum
4
Monobactam antibiotics only work toward Gram _____
Negative
Daptomycin is a bacterial cell membrane ____ former, without cell rupture
Pore
Polymyxins target Gram _____ bacteria
Negative
For cell wall assembly, Nag needs to go to NAM; the drug _____ blocks this (GREEK LIGHT)
Fosfomycin
Fosfomycin binds to the _____ enzyme to block NAG from going to NAM in Cell wall assembly
MurA
For cell wall assembly, P-P needs to get phosphatased to bring NAM-NAG outside, the drug _____ blocks this
Bacitracin (Base Hunter makes your Pee Pee go Up)
Bacitaricin inhibits the lipid ____ that helps become a carrier of the NAM-Nag
Phosphatase
The antibiotic ______ blocks the L-ALA transformation into D-ALA D-ALA
D-cycloserine
D-cycloserine blocks _____ from becoming ______
L-ala, D-ala
The Best Cephalosporin for MRSA is ______, aside from 4th gens
Ceftaroline
3 B-lactamase inhibitors
- Clavulanic Acid
- Tazobactam
- Avibactam
3rd Generation _____ such as Ceftazidime, extend Gram - at the expense of Gram + and WON’T CROSS-REACT with Penicillin allergies
Cephalosporins
Two differences between Cefazolin (1st gen Cephalo) and Cefepime (4th gen Cephalo)
- 4th Gen penetrates CNS
2. 4th gen works both Gram Positive and Gram Negative