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Nucleotide Metabolism Pathway Assays
Biochemical Assays

Nucleotide Metabolism Pathway Assays

Nucleotide metabolism encompasses the enzymatic pathways that synthesize, maintain, and quality-control DNA and RNA building blocks essential for cell division and survival. Cancer cells exhibit heightened dependence on nucleotide metabolism to sustain rapid proliferation, making enzymes in this pathway attractive therapeutic targets. Reaction Biology’s Nucleotide Metabolism Pathway Assays provide biochemical screening platforms across three critical branches that define this metabolic network:

  • Pyrimidine synthesis pathways that generate cytosine and thymine nucleotides.
  • Purine and one-carbon metabolism pathways that produce adenine and guanine precursors.
  • Nucleotide pool sanitization systems that remove damaged nucleotides before DNA incorporation.

Our portfolio includes dihydroorotate dehydrogenase (DHODH) assays for pyrimidine synthesis inhibition—validated in acute myeloid leukemia differentiation therapy—alongside methylenetetrahydrofolate dehydrogenase (MTHFD) assays targeting the folate-mediated one-carbon metabolism essential for purine and thymidylate biosynthesis. Additionally, our MTH1 (NUDT1) nucleotide pool sanitization assays enable discovery of compounds exploiting cancer’s oxidative stress vulnerability by preventing removal of damaged nucleotides.

Additional Information

  • Assay Setup
Assay Setup

Setups: Single-dose screening in duplicates or IC50 value determination with 5 or 10 concentrations. Other screening formats are available upon request.

Controls: No inhibitor (DMSO vehicle) control and for every assay, one target-specific control compound is tested in 10-dose IC50 format.

Turnaround time: 10 business days for standard projects. Expedited scheduling and data delivery can be arranged prior to the commencement of the studies.

Report: The raw data, % enzyme activity and control compound IC50 values will be reported in Excel format for single-dose assays. For IC50 orders, raw data, IC50 values, and curve fitting will be delivered in Excel format. Assay conditions, target, and substrate information are available upon request. Requirements for this information should be noted prior to the commencement of the study.

Screening facility: This assay is performed at our screening facility in Malvern, PA, US.

Compound requirements: In brief, for a standard project, 20 µl of a 10 mM DMSO stock or solid material is needed. Less material is needed for large scale screening. Please refer to our FAQs for information regarding compound preparation and shipping.