8T0T
Structure of Compound 4 bound to human ALDH1A1
Summary for 8T0T
| Entry DOI | 10.2210/pdb8t0t/pdb |
| Related | 8T0N |
| Descriptor | Aldehyde dehydrogenase 1A1, YTTERBIUM (III) ION, 1-(4-{6-fluoro-3-[4-(methanesulfonyl)piperazine-1-carbonyl]quinolin-4-yl}phenyl)cyclopropane-1-carbonitrile, ... (5 entities in total) |
| Functional Keywords | inhibitor complex, oxidoreductase, oxidoreductase-inhibitor complex, oxidoreductase/inhibitor |
| Biological source | Homo sapiens (human) |
| Total number of polymer chains | 1 |
| Total formula weight | 55611.65 |
| Authors | |
| Primary citation | Takahashi, C.,Chtcherbinine, M.,Huddle, B.C.,Wilson, M.W.,Emmel, T.,Hohlman, R.M.,McGonigal, S.,Buckanovich, R.J.,Larsen, S.D.,Hurley, T.D. Development of substituted benzimidazoles as inhibitors of human aldehyde dehydrogenase 1A isoenzymes. Chem.Biol.Interact., 391:110910-110910, 2024 Cited by PubMed Abstract: Aldehyde dehydrogenase 1A (ALDH1A) isoforms may be a useful target for overcoming chemotherapy resistance in high-grade serous ovarian cancer (HGSOC) and other solid tumor cancers. However, as different cancers express different ALDH1A isoforms, isoform selective inhibitors may have a limited therapeutic scope. Furthermore, resistance to an ALDH1A isoform selective inhibitor could arise via induction of expression of other ALDH1A isoforms. As such, we have focused on the development of pan-ALDH1A inhibitors, rather than on ALDH1A isoform selective compounds. Herein, we report the development of a new group of pan-ALDH1A inhibitors to assess whether broad spectrum ALDH1A inhibition is an effective adjunct to chemotherapy in HGSOC. Optimization of the CM10 scaffold, aided by ALDH1A1 crystal structures, led to improved biochemical potencies, improved cellular efficacy as demonstrated by reduction in ALDEFLUOR signal in HGSOC cells, and substantial improvements in liver microsomal stability. Based on this work we identified two compounds 17 and 25 suitable for future in vivo proof of concept experiments. PubMed: 38364885DOI: 10.1016/j.cbi.2024.110910 PDB entries with the same primary citation |
| Experimental method | X-RAY DIFFRACTION (1.75 Å) |
Structure validation
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