ArticleAnalytical and bioanalytical chemistry2023
Homogeneous luminescent quantitation of cellular guanosine and adenosine triphosphates (GTP and ATP) using QT-Luc
Article in Analytical and bioanalytical chemistry, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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5 citing papers in PubMed, 7 citations in OpenAlex.
- Structures and dynamics of the major G-quadruplex in the human PDGFR-β gene promoter: insights into vacancy G-quadruplex formation.Nucleic acids research · 2026Article
- Membrane disruption attenuates agonist potency in prostanoid receptors.The Biochemical journal · 2025Article
- Microtubule regulation in cancer cells.Frontiers in cell and developmental biology · 2025Article
- Modulation of the cytoskeleton for cancer therapy.Frontiers in cell and developmental biology · 2025Article
- Lower ratio of IMPDH1 to IMPDH2 sensitizes gliomas to chemotherapy.Cancer gene therapy · 2024Article
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Authors and funding
12 authors at 3 institutions in 3 countries.
Funding
Abstract
Guanosine triphosphate (GTP) and adenosine triphosphate (ATP) are essential nucleic acid building blocks and serve as energy molecules for a wide range of cellular reactions. Cellular GTP concentration fluctuates independently of ATP and is significantly elevated in numerous cancers, contributing to malignancy. Quantitative measurement of ATP and GTP has become increasingly important to elucidate how concentration changes regulate cell function. Liquid chromatography-coupled mass spectrometry (LC-MS) and capillary electrophoresis-coupled MS (CE-MS) are powerful methods widely used for the identification and quantification of biological metabolites. However, these methods have limitations related to specialized instrumentation and expertise, low throughput, and high costs. Here, we introduce a novel quantitative method for GTP concentration monitoring (GTP-quenching resonance energy transfer (QRET)) in homogenous cellular extracts. CE-MS analysis along with pharmacological control of cellular GTP levels shows that GTP-QRET possesses high dynamic range and accuracy. Furthermore, we combined GTP-QRET with luciferase-based ATP detection, leading to a new technology, termed QT-Luc
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