Adenosine 5′-Triphosphate (ATP) is a nucleotide composed of adenine, ribose, and three phosphate groups. It is a central molecule in cellular energy transfer and plays important roles in metabolism, enzymatic reactions, nucleic acid synthesis, and cellular signaling.
ATP can transfer phosphate groups to other molecules through enzymatic reactions, helping drive biochemical processes that require energy. It is also used in research investigating kinase activity, ATP-dependent enzymes, cellular metabolism, and purinergic signaling.
For research applications, ATP may be used as a biochemical substrate, phosphate donor, or metabolic reagent. Product selection should distinguish ATP free acid from its sodium or other salt forms because these forms have different molecular weights and CAS numbers.
ATP is not a conventional polymerizable monomer. Its primary research relevance comes from phosphate transfer, hydrolysis, and its role in enzymatic energy-transfer processes.
ATP Hydrolysis
ATP can be hydrolyzed to adenosine diphosphate (ADP) and inorganic phosphate, releasing free energy that can be coupled to cellular and biochemical processes.
ATP + H₂O → ADP + Pi
Phosphorylation Reactions
Kinases use ATP as a phosphate donor to transfer a phosphate group to a substrate. These reactions are important in enzyme assays, metabolic regulation, and cellular signaling studies.
Nucleic Acid Synthesis
ATP serves as a nucleotide substrate in RNA synthesis and as a precursor in cellular nucleotide metabolism. Its role depends on the enzyme system and experimental conditions.
ATP-Dependent Enzymatic Reactions
ATP is involved in numerous enzymatic processes, including molecular transport, metabolic pathways, and biochemical reactions that require energy input. Research applications depend on the target enzyme, substrate, and assay design.
ATP is used as a substrate in biochemical studies of enzymes that consume or transfer phosphate groups. It can help researchers investigate enzyme activity, reaction kinetics, and substrate utilization.
Applications include:
Kinase activity assays
ATPase activity studies
Enzyme kinetics and substrate conversion
Phosphate-transfer reaction research
Evaluation of ATP-dependent biochemical pathways
ATP is relevant to enzyme research because its concentration and availability can influence reaction rates and assay results. Experimental conditions should be optimized for the specific enzyme and assay system.
ATP is a principal carrier of chemical energy in cells. Researchers use ATP in biochemical investigations of energy metabolism, metabolic regulation, and energy-dependent cellular processes.
Applications include:
Cellular energy metabolism studies
ATP hydrolysis and regeneration research
Mitochondrial energy metabolism assays
Metabolic pathway analysis
Evaluation of energy-dependent cellular functions
ATP is relevant to studies examining how biochemical reactions are coupled to energy transfer. Its use in experiments should account for ATP stability and the activity of enzymes that synthesize or consume it.
ATP is one of the ribonucleotide substrates used in RNA synthesis and participates in nucleotide-related biochemical reactions. It is used in molecular biology research involving transcription and ATP-dependent enzymes.
Applications include:
In vitro transcription research
RNA synthesis and nucleotide substrate studies
ATP-dependent RNA processing research
Nucleotide metabolism investigations
Biochemical analysis of nucleic acid-related enzymes
ATP supports molecular biology research where adenine nucleotide availability is relevant. For transcription reactions, it is generally used together with the other required nucleoside triphosphates under enzyme-specific conditions.
ATP can also act as an extracellular signaling molecule. It is investigated in studies of purinergic receptors, inflammatory signaling, and cellular responses to extracellular nucleotides.
Applications include:
Purinergic receptor signaling studies
Extracellular ATP signaling research
Cellular response and signal-transduction assays
Inflammatory signaling investigations
ATP-related biochemical pathway analysis
ATP is relevant to cellular signaling research because its effects depend on receptor expression, extracellular metabolism, concentration, and experimental context.
Biochemical relevance: A central nucleotide in cellular energy transfer and metabolism.
Phosphate donor: Used in kinase and other phosphate-transfer reactions.
Enzyme research utility: Applicable to ATP-dependent enzyme assays and biochemical kinetics.
Molecular biology applications: Serves as a nucleotide substrate in RNA synthesis systems.
Metabolism research: Supports investigations of ATP hydrolysis, energy transfer, and metabolic pathways.
Signaling research: Relevant to studies of extracellular ATP and purinergic signaling.
Multiple assay formats: Can be incorporated into suitable biochemical and molecular biology workflows, subject to the requirements of each assay.
Store according to the product-specific label and Safety Data Sheet (SDS); ATP products are commonly stored at −20°C.
Keep the container tightly sealed and protect the material from moisture.
Minimize unnecessary exposure to heat and prolonged storage under unsuitable conditions.
Prepare aqueous solutions using an appropriate solvent and assay-compatible conditions.
Avoid repeated freeze–thaw cycles where possible; aliquot solutions if appropriate for the intended workflow.
Confirm solution stability, storage duration, and handling requirements using the supplier's technical documentation.
Biochemistry and Enzymology
Cellular Energy Metabolism
Molecular Biology and RNA Research
Nucleotide Metabolism
Kinase and Phosphorylation Research
Cellular Signaling and Purinergic Receptors
Drug Discovery and Biochemical Assay Development
Enzyme Kinetics and Mechanistic Studies
Q1: What is Adenosine 5′-Triphosphate (ATP)?
ATP is a nucleotide composed of adenine, ribose, and three phosphate groups. It plays a central role in cellular energy transfer and many biochemical reactions.
Q2: What is the molecular formula and molecular weight of ATP?
ATP free acid has the molecular formula C₁₀H₁₆N₅O₁₃P₃ and a molecular weight of approximately 507.18 g/mol.
Q3: What is the difference between ATP and ATP disodium salt?
ATP free acid and ATP disodium salt differ in their chemical form, molecular weight, and CAS number. ATP disodium salt hydrate is commonly listed under CAS 34369-07-8. Select the form that matches your experimental requirements.
Q4: What is ATP used for in biochemical research?
ATP is used in enzyme assays, phosphorylation studies, cellular metabolism research, and investigations of ATP-dependent biochemical reactions.
Q5: Can ATP be used in in vitro transcription?
Yes. ATP is one of the four standard nucleoside triphosphate substrates used in conventional in vitro transcription systems, together with GTP, CTP, and UTP. Reaction requirements depend on the transcription system.
Q6: Why is ATP important in kinase assays?
ATP serves as the phosphate donor in kinase-catalyzed reactions. ATP concentration can affect reaction kinetics and should be selected according to the assay design.
Q7: Is ATP soluble in water?
ATP is water-soluble. Solubility and solution stability depend on the chemical form, concentration, pH, temperature, and experimental conditions.
Q8: How should ATP be stored?
Follow the supplier's product-specific storage recommendations. ATP research reagents are commonly stored at −20°C in a sealed container protected from moisture.
Q9: What should be considered when selecting ATP for research?
Confirm the CAS number, chemical form, purity, water content where relevant, storage conditions, and compatibility with the intended biochemical assay.
