Bacterial iron metabolism pathway

Bacterial iron metabolism pathway encompasses the molecular mechanisms bacteria use to acquire, store, regulate, and utilize iron, an essential but often limiting nutrient in host environments. These pathways include siderophore-mediated iron chelation, transport via outer membrane receptors and ABC transporters in Gram-negative bacteria, and direct uptake mechanisms in Gram-positive species. Once internalized, iron is incorporated into proteins critical for redox reactions, metabolic processes, and combating oxidative stress. Because iron is central to bacterial survival and virulence in the host, components of these pathways—especially siderophore transporters and regulatory proteins—are considered promising therapeutic targets for anti-infective drug development. However, the term does not refer to a specific receptor or protein, but to a group of molecular systems and enzymes, making it necessary to specify the precise molecular target when discussing drug discovery or biomarker development.

Other names

bacterial iron homeostasisbacterial iron acquisition pathwaysbacterial iron regulationiron transport systems in bacteria

Inhibition of siderophore activity: blocks bacterial iron uptake, reducing growth; Iron chelation: deprives bacteria of iron essential for metabolism; Competition with host iron-binding proteins