Bacterial intracellular macromolecules

Bacterial intracellular macromolecules represent a broad category of essential biological polymers and complexes found within the bacterial cell, including genomic DNA, various RNA species, ribosomes, and metabolic enzymes (Kapoor et al., 2017; Lambert, 2002). These components are vital for the maintenance of life, facilitating the storage and replication of genetic information, the transcription of genes, and the translation of proteins necessary for cellular structure and function (Wilson, 2014). In clinical medicine, these macromolecules serve as the primary targets for most classes of antibiotics; for instance, fluoroquinolones target DNA-processing enzymes, while macrolides and aminoglycosides bind to ribosomal subunits to halt protein synthesis (Kohanski et al., 2010). Because many of these intracellular processes are distinct from those in human cells, they allow for selective toxicity, although the high degree of conservation between bacterial machinery and human mitochondrial components can lead to adverse side effects (Wilson, 2014). The study of these targets is central to overcoming antibiotic resistance, as bacteria often evolve mechanisms to modify these macromolecules or bypass the inhibited pathways (Blair et al., 2015).

Other names

Bacterial cytoplasmic macromoleculesBacterial nucleic acids and proteinsIntracellular bacterial componentsBacterial cytoplasmic targets

Inhibition of DNA gyrase and topoisomerase IV, inhibition of DNA-dependent RNA polymerase, inhibition of the 30S or 50S ribosomal subunits, and inhibition of essential metabolic enzymes such as dihydrofolate reductase.