%0 Journal Article %T Fully closed conformation of penicillin-binding protein revealed by structure of PBP2 from Acinetobacter baumannii. %A Jang H %A Kim CM %A Hong E %A Park HH %J Biochem Biophys Res Commun %V 729 %N 0 %D 2024 Oct 15 %M 38986258 %F 3.322 %R 10.1016/j.bbrc.2024.150368 %X Penicillin-binding protein 2 (PBP2), a vital protein involved in bacterial cell-wall synthesis, serves a target for β-lactam antibiotics. Acinetobacter baumannii is a pathogen notorious for multidrug resistance; therefore, exploration of PBPs is pivotal in the development of new antimicrobial strategies. In this study, the tertiary structure of PBP2 from A. baumannii (abPBP2) was elucidated using X-ray crystallography. The structural analysis demonstrated notable movement in the head domain, potentially critical for its glycosyltransferase function, suggesting that abPBP2 assumes a fully closed conformation. Our findings offer valuable information for developing novel antimicrobial agents targeting abPBP2 that are applicable in combating multidrug-resistant infections.