Penicillin-binding proteins: evergreen drug targets.

Area of Science:

• Biochemistry
• Microbiology
• Pharmacology

Background:

• Penicillin-binding proteins (PBPs) are essential enzymes involved in bacterial cell wall biosynthesis.
• PBPs are the primary targets of β-lactam antibiotics, a widely used class of antimicrobial agents.
• Understanding PBP function is critical for developing new antibiotics to combat resistance.

Purpose of the Study:

• To review recent advances in understanding the structure and function of PBPs.
• To explore the role of PBPs in mediating resistance to β-lactam antibiotics.
• To highlight the ongoing efforts in pharmaceutical design targeting PBPs.

Main Methods:

• High-resolution structural studies of PBPs.
• Mechanistic studies of PBP activity in solution.
• Analysis of novel experimental molecules and clinical agents targeting PBPs.

Main Results:

• Significant progress has been made in elucidating PBP structures and functions.
• High molecular mass PBPs play a role in β-lactam resistance.
• Mechanisms of PBP modulation of β-lactam sensitivity are being uncovered.

Conclusions:

• Continued research into PBP structure-function relationships is vital.
• Further investigation is needed to fully describe how PBPs modulate β-lactam sensitivity while maintaining essential activity.
• Targeting PBPs remains a promising strategy for novel antibiotic development.