Protein denaturation (in microbes)

Protein denaturation in microbes refers to the process by which microbial proteins lose their native three-dimensional structure, and thus, their biological activity, due to exposure to heat, extremes of pH, chemicals, or physical forces. The primary amino acid sequence remains intact, but the secondary, tertiary, and quaternary structures are disrupted. This process is exploited in antimicrobial practices such as pasteurization, sterilization, and chemical disinfection because denaturation renders critical microbial enzymes and structural proteins nonfunctional, leading to cell death or growth inhibition. Unlike a discrete molecular target, "microbial protein denaturation" is a fundamental process rather than a single molecule or receptor.

Other names

Protein unfoldingloss of protein structuredenaturation of microbial proteinsmicrobial protein unfolding

Disruption of hydrogen bonds, ionic bonds, hydrophobic interactions, and disulfide bridges in microbial proteins; irreversible loss of higher-order structures; protein aggregation or unfolding.