5-Carboxy-8-hydroxyquinoline is a Broad Spectrum 2-Oxoglutarate Oxygenase Inhibitor which Causes Iron Translocation.Hopkinson, R.J., Tumber, A., Yapp, C., Chowdhury, R., Aik, W., Che, K.H., Li, X.S., Kristensen, J.B.L., King, O.N.F., Chan, M.C., Yeoh, K.K., Choi, H., Walport, L.J., Thinnes, C.C., Bush, J.T., Lejeune, C., Rydzik, A.M., Rose, N.R., Bagg, E.A., McDonough, M.A., Krojer, T., Yue, W.W., Ng, S.S., Olsen, L., Brennan, P.E., Oppermann, U., Muller-Knapp, S., Klose, R.J., Ratcliffe, P.J., Schofield, C.J., Kawamura, A.
(2013) Chem Sci 4: 3110-3117
- PubMed: 26682036
- DOI: 10.1039/C3SC51122G
- Primary Citation of Related Structures:
- PubMed Abstract:
2-Oxoglutarate and iron dependent oxygenases are therapeutic targets for human diseases. Using a representative 2OG oxygenase panel, we compare the inhibitory activities of 5-carboxy-8-hydroxyquinoline (IOX1) and 4-carboxy-8-hydroxyquinoline (4C8HQ) ...
2-Oxoglutarate and iron dependent oxygenases are therapeutic targets for human diseases. Using a representative 2OG oxygenase panel, we compare the inhibitory activities of 5-carboxy-8-hydroxyquinoline (IOX1) and 4-carboxy-8-hydroxyquinoline (4C8HQ) with that of two other commonly used 2OG oxygenase inhibitors, N -oxalylglycine (NOG) and 2,4-pyridinedicarboxylic acid (2,4-PDCA). The results reveal that IOX1 has a broad spectrum of activity, as demonstrated by the inhibition of transcription factor hydroxylases, representatives of all 2OG dependent histone demethylase subfamilies, nucleic acid demethylases and γ-butyrobetaine hydroxylase. Cellular assays show that, unlike NOG and 2,4-PDCA, IOX1 is active against both cytosolic and nuclear 2OG oxygenases without ester derivatisation. Unexpectedly, crystallographic studies on these oxygenases demonstrate that IOX1, but not 4C8HQ, can cause translocation of the active site metal, revealing a rare example of protein ligand-induced metal movement.
Target Discovery Institute, Nuffield Department of Medicine, University of Oxford, Roosevelt Drive, OX3 7FZ, UK.,Division of Cardiovascular Medicine, Radcliffe Department of Medicine, Wellcome Trust Centre for Human Genetics, Roosevelt Drive, Oxford, OX3 7LD, UK.,Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford, OX1 3TA, U.K.,Structural Genomics Consortium, University of Oxford, Headington, OX3 7DQ, U.K.,Botnar Research Centre, Oxford Biomedical Research Unit, Oxford OX3 7LD, U.K.,Epigenetic Regulation of Chromatin Function Group, Department of Biochemistry, University of Oxford, South Parks Road, Oxford, OX1 3QU, U.K.,Department of Medicinal Chemistry, Faculty of Pharmaceutical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark.,Henry Wellcome Building for Molecular Physiology, Nuffield Department of Medicine, University of Oxford, Roosevelt Drive, Oxford OX3 7LD, U.K.