UDP-GlcUA - a key coenzyme driving phase II metabolism and biotransformation of drugs

Uridine diphosphate glucuronide (UDP-GlcUA) is an indispensable key nucleotide sugar in cells. It is known as the "core tool" of drug metabolism and the "activated donor" of biosynthesis. It is not only a core component of the natural metabolic pathways in the body, but also an indispensable high-value raw material in modern drug research and development, especially in the fields of drug metabolism, toxicology research and glycoconjugate synthesis.

Chemical Information

· Chemical name: Uridine-5'-diphosphoglucuronate trisodium salt

· Common name: UDP-glucuronic acid, UDPGA

· English name: Uridine5'-diphosphoglucuronic acid trisodium salt

· Chemical formula: C15H20N2O18P2 · xNa (commonly trisodium salt)

· Molecular weight: 604.28g/mol (based on trisodium salt)

· CAS number: 63700-19-6

Structural features

The structure of UDPGA combines high energy and biological activity. Its core features are:

· High-energy glycosidic bonds: UDPGA contains an activated uridine diphosphate (UDP) group whose terminal glucuronic acid moieties are linked by high-energy phosphoric anhydride bonds. This structure makes the glucuronic acid group highly transfer active.

· Key functional groups: The carboxyl group on glucuronic acid is negatively charged at physiological pH, which not only enhances its water solubility, but is also a key site for binding reactions with a variety of endogenous/exogenous compounds.

· Biocompatibility: As a natural coenzyme, UDPGA can be efficiently recognized and utilized by a variety of glycosyltransferases in organisms, ensuring the efficiency and specificity of biotransformation.

Main applications and advantages

1. The “gold standard” reagent for drug metabolism and toxicology research

· Drive glucuronic acid conjugation reaction: This is one of the most important pathways for phase II metabolism of drugs. Under the catalysis of uridine diphosphate glucuronosyltransferase (UGT), UDPGA transfers its glucuronic acid group to substrates such as drugs, hormones, and bilirubin to generate more water-soluble glucuronic acid conjugates, which are easily excreted from the bile or urine.

· Core components of in vitro metabolism models: UDPGA is an essential cofactor in in vitro metabolism experiments such as liver microsomes and recombinant UGT enzyme systems. Adding our high-purity UDPGA ensures reliable, reproducible data for your metabolic stability, metabolite identification, and drug-drug interaction studies.

· Assessing drug toxicity and clearance: By studying the rate and degree of metabolism of a compound by UDPGA, its potential in vivo clearance rate, accumulation and toxicity risks can be effectively predicted, which is a key part of new drug screening and safety evaluation.

2. Important cornerstones of glycobiology and glycochemical synthesis

· Precursor for glycosaminoglycan synthesis: UDPGA is the direct precursor for the synthesis of glycosaminoglycans (GAGs) such as hyaluronic acid, chondroitin sulfate, and heparin. These molecules play a central role in the extracellular matrix, cell signaling, and lubrication.

· Donor for the synthesis of glycoproteins and glycolipids: Under the catalysis of glycosyltransferase, UDPGA can serve as a donor of glucuronic acid groups and participate in the assembly and extension of sugar chains in glycoproteins and glycolipids. It is an important tool for basic research on glycobiology.

3. Standards and potential molecules for diagnostic applications

· Metabolite identification standards: In mass spectrometry analysis, high-purity UDPGA is an ideal standard for the qualitative and quantitative detection of UDPGA and its related metabolites in biological samples.

· Research on inborn errors of metabolism: Certain enzyme deficiencies related to the glucuronic acid metabolism pathway may lead to elevated bilirubin (such as Gilbert syndrome) or other pathological conditions.

Conclusion

Uridine diphosphate glucuronide (UDPGA) is much more than a biochemical reagent. It is a critical bridge between drug molecules and their fate, and an essential key to discovering the sugar code of life. From accelerating the development of innovative drugs, to uncovering complex glycobiological functions, to ensuring the safety and compliance of preclinical research, its value is irreplaceable.