4BDK
Fragment-based screening identifies a new area for inhibitor binding to checkpoint kinase 2 (CHK2)
Summary for 4BDK
| Entry DOI | 10.2210/pdb4bdk/pdb |
| Related | 1GXC 2CN5 2CN8 2W0J 2W7X 2WTC 2WTD 2WTI 2WTJ 2XBJ 2XK9 2XM8 2XM9 2YCF 2YCQ 2YCR 2YCS 2YIQ 2YIR 2YIT 4A9R 4A9S 4A9T 4A9U 4BDA 4BDB 4BDC 4BDD 4BDE 4BDF 4BDG 4BDH 4BDI 4BDJ |
| Descriptor | CHECKPOINT KINASE 2, N-[(4-methoxyphenyl)methyl]quinoxaline-6-carboxamide, NITRATE ION, ... (5 entities in total) |
| Functional Keywords | transferase |
| Biological source | HOMO SAPIENS (HUMAN) |
| Cellular location | Isoform 2: Nucleus. Isoform 4: Nucleus. Isoform 7: Nucleus. Isoform 9: Nucleus. Isoform 12: Nucleus. Nucleus, PML body: O96017 |
| Total number of polymer chains | 1 |
| Total formula weight | 37653.37 |
| Authors | Silva-Santisteban, M.C.,Westwood, I.M.,Boxall, K.,Brown, N.,Peacock, S.,McAndrew, C.,Barrie, E.,Richards, M.,Mirza, A.,Oliver, A.W.,Burke, R.,Hoelder, S.,Jones, K.,Aherne, G.W.,Blagg, J.,Collins, I.,Garrett, M.D.,van Montfort, R.L.M. (deposition date: 2012-10-05, release date: 2013-06-26, Last modification date: 2023-12-20) |
| Primary citation | Silva-Santisteban, M.C.,Westwood, I.M.,Boxall, K.,Brown, N.,Peacock, S.,Mcandrew, C.,Barrie, E.,Richards, M.,Mirza, A.,Oliver, A.W.,Burke, R.,Hoelder, S.,Jones, K.,Aherne, G.W.,Blagg, J.,Collins, I.,Garrett, M.D.,Van Montfort, R.L.M. Fragment-Based Screening Maps Inhibitor Interactions in the ATP-Binding Site of Checkpoint Kinase 2. Plos One, 8:65689-, 2013 Cited by PubMed Abstract: Checkpoint kinase 2 (CHK2) is an important serine/threonine kinase in the cellular response to DNA damage. A fragment-based screening campaign using a combination of a high-concentration AlphaScreen™ kinase assay and a biophysical thermal shift assay, followed by X-ray crystallography, identified a number of chemically different ligand-efficient CHK2 hinge-binding scaffolds that have not been exploited in known CHK2 inhibitors. In addition, it showed that the use of these orthogonal techniques allowed efficient discrimination between genuine hit matter and false positives from each individual assay technology. Furthermore, the CHK2 crystal structures with a quinoxaline-based fragment and its follow-up compound highlight a hydrophobic area above the hinge region not previously explored in rational CHK2 inhibitor design, but which might be exploited to enhance both potency and selectivity of CHK2 inhibitors. PubMed: 23776527DOI: 10.1371/JOURNAL.PONE.0065689 PDB entries with the same primary citation |
| Experimental method | X-RAY DIFFRACTION (3.3 Å) |
Structure validation
Download full validation report
