Microbial membrane phospholipid (None)

Microbial membrane phospholipids are essential amphiphilic molecules that constitute the major lipid component of bacterial, archaeal, and other microbial cell membranes. Their structure, typically consisting of fatty acid tails attached to a glycerol backbone with a phosphate-containing head group, enables formation of a lipid bilayer that provides a selectively permeable barrier, maintains membrane fluidity, enables cell shape and integrity, and supports membrane-associated signaling[1][5][2][6][7]. They are critical for microbial survival and adaptation to environmental changes, and alterations in their composition affect cell physiology, stress responses, and pathogenicity. Due to their absence or significant differences from those in humans, microbial membrane phospholipids are key targets for antimicrobial agents—including antibiotics and lipopeptides—that disrupt or inhibit membrane function, leading to microbial cell death[6][7]. Selectivity of targeting and the ability of microbes to adapt their membrane composition are important considerations for therapeutic development and safety.

Other names

Bacterial membrane phospholipidProkaryotic membrane phospholipidMicrobial lipid bilayerMicrobial phospholipid

Many drugs insert into or bind microbial membrane phospholipids, disrupting membrane integrity, depolarizing the potential, and leading to cell lysis. Some compounds target enzymes involved in the synthesis of phospholipids, thereby blocking membrane formation. Drugs can increase membrane permeability, causing leakage of vital cellular constituents.