Pathogenic bacterial membrane

Pathogenic bacterial membranes refer broadly to the cytoplasmic (plasma) and/or outer membrane structures found in disease-causing bacteria. In Gram-negative bacteria, this includes both the asymmetric outer membrane (containing lipopolysaccharide, LPS, and outer membrane proteins [OMPs]) and the inner membrane of phospholipids and integral proteins, which together form a critical permeability barrier and a platform for energy generation, transport, and host interaction[1][2][3][6]. In Gram-positive bacteria, the term generally refers to the single plasma membrane, sometimes with associated wall teichoic acids. The bacterium’s membrane is essential for viability and is central to several pathogenic processes, including nutrient uptake, toxin export, immune evasion, and antibiotic resistance[1][2][4][6]. Many antibiotics, such as polymyxins, target the distinctive features of the bacterial membrane (e.g., LPS in Gram-negatives or specific lipid compositions), while resistance often involves membrane modifications[1][3][6]. As a target, "pathogenic bacterial membrane" is an umbrella descriptor for structures rather than a single molecular entity—in most drug discovery and clinical contexts, therapies are directed either at broad membrane classes (e.g., LPS, phospholipids, OMPs) or at specific components within the membrane (e.g., porins, penicillin-binding proteins), rather than an abstract membrane itself. Note: The term is overly broad and nonspecific as a molecular target; individual membrane proteins or lipid molecules are more precise drug targets[1][3][6]. In structured databases, "pathogenic bacterial membrane" would typically not be indexed as a canonical molecular target, but rather as a structural feature or compartment containing several possible targets.

Other names

Bacterial outer membraneBacterial cell membranePathogen cell envelope

Disruption of membrane integrity/permeabilization (e.g., polymyxins) - Inhibition of cell wall biosynthesis (β-lactams, access regulated by membrane permeability) - Ion leakage and depolarization (daptomycin, some peptides) - Inhibition of protein/lipid synthesis (indirect, via membrane transport inhibition)