Bacterial gene expression

Bacterial gene expression is the fundamental biological process by which genetic information in a bacterium's DNA is transcribed into RNA and subsequently translated into functional proteins. This process is essential for bacterial survival, replication, and the expression of virulence factors during infection (Nature Reviews Microbiology, 2017). The primary molecular machinery involved includes DNA-dependent RNA polymerase for transcription and the 70S ribosome (comprising the 30S and 50S subunits) for translation (NCBI Bookshelf, 2002). This pathway is a hallmark of antimicrobial therapy, with numerous antibiotic classes specifically designed to exploit the structural differences between prokaryotic and eukaryotic expression machinery. For example, rifamycins target the bacterial RNA polymerase, while aminoglycosides and macrolides target the ribosomal subunits to inhibit protein synthesis (StatPearls, 2023). However, because 'Bacterial gene expression' encompasses an entire pathway rather than a single molecular entity, it is considered a functional category rather than a specific drug target.

Other names

Prokaryotic gene expressionBacterial transcription and translationBacterial protein synthesis

Inhibition of bacterial RNA polymerase to prevent mRNA synthesis (transcription) or binding to the 30S or 50S ribosomal subunits to arrest protein assembly (translation), ultimately leading to bacteriostatic or bactericidal effects.