Bacterial sorbitol metabolism pathway

The bacterial sorbitol metabolism pathway refers to the series of enzymatic reactions by which certain bacteria import and metabolize sorbitol, a sugar alcohol. In enteric bacteria such as Escherichia coli and Aerobacter aerogenes, this process typically begins with the uptake of sorbitol via a phosphoenolpyruvate-dependent phosphotransferase system, which phosphorylates sorbitol to form sorbitol 6-phosphate during transport into the cell. The next key step is catalyzed by sorbitol 6-phosphate dehydrogenase, converting sorbitol 6-phosphate into fructose 6-phosphate, which then enters central metabolic pathways like glycolysis. This route is distinct from other bacterial species that may oxidize sorbitol directly to fructose or other polyols. This metabolic capability allows bacteria to utilize environmental or dietary sources of sorbitol as carbon and energy sources. The enzymes involved are inducible depending on substrate availability. While this pathway is essential for bacterial physiology under certain conditions, it does not represent a single molecular therapeutic target but rather an entire biochemical route involving multiple proteins—primarily transporters and dehydrogenases. Because "Bacterial sorbitol metabolism pathway" describes a multi-enzyme process rather than an individual molecule or receptor, it is not considered a canonical drug target itself; instead, its components could be targets for antimicrobial strategies or metabolic engineering. If you require structured information about specific enzymes within this pathway—such as "Sorbitol 6-phosphate dehydrogenase"—please specify the enzyme name for more precise data.

Other names

Sorbitol utilization pathway in bacteriaBacterial polyol pathwaySorbitol catabolic pathway (bacteria)