2. Academic Validation
  3. The broad spectrum 2-oxoglutarate oxygenase inhibitor N-oxalylglycine is present in rhubarb and spinach leaves

The broad spectrum 2-oxoglutarate oxygenase inhibitor N-oxalylglycine is present in rhubarb and spinach leaves

  • Phytochemistry. 2015 Sep;117:456-461. doi: 10.1016/j.phytochem.2015.06.028.
Khalid Al-Qahtani 1,  Bushra Jabeen 2,  Rok Sekirnik 3,  Naheed Riaz 4,  Timothy D W Claridge 3,  Christopher J Schofield 3,  James S O McCullagh 5
Affiliations

Affiliations

  • 1 Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, United Kingdom; Metabolic Screening Laboratory, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia.
  • 2 Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, United Kingdom; Department of Chemistry, Baghdad-ul-Jadeed Campus, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan.
  • 3 Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, United Kingdom.
  • 4 Department of Chemistry, Baghdad-ul-Jadeed Campus, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan.
  • 5 Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, United Kingdom. Electronic address: james.mccullagh@chem.ox.ac.uk.
PMID: 26196940 DOI: 10.1016/j.phytochem.2015.06.028
Abstract

2-Oxoglutarate (2OG) and ferrous iron dependent oxygenases are involved in many biological processes in organisms ranging from humans (where some are therapeutic targets) to Plants. These Enzymes are of significant biomedicinal interest because of their roles in hypoxic signaling and epigenetic regulation. Synthetic N-oxalylglycine (NOG) has been identified as a broad-spectrum 2OG oxygenase inhibitor and is currently widely used in studies on the hypoxic response and chromatin modifications in Animals. We report the identification of NOG as a natural product present in Rheum rhabarbarum (rhubarb) and Spinach oleracea (spinach) leaves; NOG was not observed in Escherchia coli or human embryonic kidney cells (HEK 293T). The finding presents the possibility that NOG plays a natural role in regulating gene expression by inhibiting 2OG dependent oxygenases. This has significance because tricarboxylic acid cycle (TCA) intermediate inhibition of 2OG dependent oxygenases has attracted major interest in Cancer research.

Keywords

Amino acid; Inhibitor; N-oxalylglycine; Natural product; Oxygenases; Rheum rhabarbarum (rhubarb); Spinach oleracea (spinach).

Figures
Products
  • Cat. No.
    Product Name
    Description
    Target
    Research Area
  • HY-12315
    99.28%, 2-Oxoglutarate Oxygenase Inhibitor