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skos:definition |
MSH: An antibiotic derived from penicillin similar to CARBENICILLIN in action.,NCI: A broad-spectrum, semi-synthetic penicillin antibiotic with bactericidal activity. Similar to carbenicillin in action, ticarcillin inactivates the penicillin-sensitive transpeptidase C-terminal domain by opening the lactam ring. This inactivation prevents the cross-linkage of peptidoglycan strands, thereby inhibiting the third and last stage of bacterial cell wall synthesis. This leads to incomplete bacterial cell wall synthesis and eventually causes cell lysis.
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