The role of the L421P mutation in Penicillin-Binding Protein 1 (PBP1) in the evolution of chromosomally mediated penicillin resistance in Neisseria gonorrhoeae
Gabriella L. Gentile, Bryan B. Guzmán, Adriana Le Van, Ann E. Jerse, Yonatan H. Grad, Daniel Dominguez, Tatum D. Mortimer, Robert A. Nicholas
This study shows that the ponAL421P mutation in PBP1 increases penicillin MIC above the clinical breakpoint and persists in N. gonorrhoeae despite penicillin's removal from treatment guidelines.
bioRxiv · Jun 27, 2025 · PreprintMicrobiology