glycerol 3-phosphate (G3P)

glycerol 3-phosphate (G3P) (CAS No.: 57-03-4) is a naturally occurring intermediate in glycerol metabolism that functions as a substrate analogue in enzymatic systems, widely utilized in biochemical and pharmacological research. As an α-site binding ligand, (rac)-sn-glycerol 3-phosphate competitively associates with enzyme active sites, where it can inhibit catalytic processes involving indole and nucleophilic indole analogues by interfering with substrate access to the E(A-A) complex, thereby serving as a useful probe for studying enzyme kinetics and substrate recognition. This compound is also structurally related to glycerophosphoric acid moieties found in bacterial cell wall components such as teichoic acids, supporting its relevance in microbial physiology and cell envelope research. In vitro, its inhibitory effects are generally observed across low micromolar to millimolar concentration ranges depending on the specific enzyme system and assay conditions. G3P is commonly applied in studies investigating glycerol metabolic pathways, enzyme inhibition screening, and the structural and functional characterization of enzymes involved in phosphate metabolism and related signaling networks. Experimental usage in cell-free systems, cultured cells, or model organisms typically varies according to assay design and research objectives, making it a versatile tool for elucidating metabolic regulation and enzyme mechanism in basic and applied life sciences research.