Microbial membrane integrity

Microbial membrane integrity describes the ability of microbial cells to maintain the structure and function of their cellular membranes, which are essential for viability, homeostasis, and resistance to environmental stresses. The membrane provides selective permeability, facilitates energy generation, coordinates transport functions, and enables communication with the environment. Maintenance of membrane integrity is accomplished through a complex interplay of lipids, proteins (e.g., porins, transporters, chaperones, and assembly machinery such as the BAM complex), and adaptive stress responses. Many antibiotics and host defense peptides exert their effect by compromising membrane integrity, leading to loss of viability. However, \"microbial membrane integrity\" is not itself a discrete molecular target, but a composite phenotype resulting from the function and assembly of many molecules[6][7][1].\n\nOverall, \"Microbial membrane integrity\" is not a molecular target but a multi-component physiological state maintained by many different molecules, many of which are themselves validated targets for antibiotic discovery (e.g., BAM complex, porins, membrane lipids, etc.).

Other names

Bacterial membrane integrityCell envelope integrityPlasma membrane integrityOuter membrane integrity

Disruption of membrane architecture (pore formation, detergent-like action)\nDepolarization or dissipation of proton motive force\nDisruption of membrane-embedded proteins\nIncreased permeability and leakage of cellular contents