GTP, Na₃—the core energy molecule that drives cell function and biosynthesis 36051-31-7

Guanosine-5'-triphosphate trisodium salt is one of the most critical high-energy phosphate compounds in life. It is known as the "universal currency of cellular energy" and the "activated precursor" of biosynthesis. It is not only a core member of intracellular energy metabolism, but also an indispensable raw material for modern biotechnology, especially in in vitro transcription, enzymatic reactions and cell signal transduction research.

Chemical Information

Chemical name: Guanosine-5'-triphosphate trisodium salt

Common name: GTP trisodium salt

Chemical formula: C₁₀H₁₄N₅Na₃O₁₄P₃

Molecular weight: 547.18 g/mol

CAS number: 36051-31-7

Structural characteristics and functional mechanism

The structure of guanosine-5'-triphosphate trisodium salt holds the secret to its versatility:

High-energy phosphate bond: Its molecule contains two "high-energy" pyrophosphate bonds. The hydrolysis of these bonds releases a large amount of free energy, which directly provides power for hundreds of cellular physiological activities such as protein synthesis, material transport, and muscle contraction.

Allosteric regulation and signal transduction: GTP is a natural ligand for many key G proteins. G protein cycles between binding GTP (activation) and hydrolyzing GTP into GDP (inactivation), acting as the core "molecular switch" in cell signaling pathways, regulating cell growth, differentiation and response to the environment.

The cornerstone of biosynthesis: As one of the basic raw materials for RNA synthesis, GTP is directly incorporated into the nascent RNA chain through the principle of complementary base pairing during the transcription process. It is one of the four core nucleoside triphosphates in the in vitro transcription reaction system for the production of mRNA vaccines and therapies.

Main applications and advantages

Key raw materials for in vitro transcription

Efficient synthesis of mRNA: In the development and production of mRNA vaccines and therapeutic drugs, GTP, ATP, CTP, and UTP together constitute the substrate of the in vitro transcription system. High-purity, nuclease-free GTP trisodium salt is a prerequisite for ensuring efficient and accurate transcription reactions and obtaining high-quality, high-yield mRNA products.

Ensure the function of cap analogues: In the co-transcriptional capping process, GTP serves as the starting nucleotide and competes with cap analogues for the starting site of RNA polymerase. Its concentration and purity directly affect the capping efficiency, thereby affecting the stability and translation efficiency of mRNA.

Core tools for cell biology and signal transduction research

Revealing the G protein mechanism: The use of radioactive or non-radioactive labeled GTP (such as GTPγS, a non-hydrolyzable GTP analog) is a classic means to study G protein-coupled receptor signaling pathways, quantify G protein activity and identify new G proteins.

Energy metabolism research: As a direct product and participant of energy metabolism pathways such as mitochondrial oxidative phosphorylation, it is an important probe for studying cellular energy homeostasis, metabolic diseases and related drug action mechanisms.

Substrates and energy donors for enzymatic reactions

Protein synthesis: In a cell-free protein expression system, GTP provides energy for translation elongation factors, which is a necessary condition for driving ribosomes to efficiently synthesize target proteins.

Metabolic pathways such as gluconeogenesis: In key biosynthetic pathways such as glycogen synthesis and gluconeogenesis, GTP serves as a specific energy donor or substrate and participates in regulating the anabolism of cells.

Conclusion

Guanosine-5'-triphosphate trisodium salt is far more than a simple energy molecule. It is a bridge connecting cell metabolism, signal transduction and gene expression. From the development of breakthrough mRNA therapies, to cutting-edge cell signal deciphering, to basic enzyme kinetics research, its role is irreplaceable.