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  • Title: In silico screening of a novel scaffold for fructose-1,6-bisphosatase (FBPase) inhibitors.
    Author: Huang Y, Chi B, Xu Y, Song R, Wei L, Rao L, Feng L, Ren Y, Wan J.
    Journal: J Mol Graph Model; 2019 Jan; 86():142-148. PubMed ID: 30366190.
    Abstract:
    Fructose-1, 6-bisphosphatase (FBPase) has been regarded as an attractive drug target to control blood glucose against Type 2 diabetes (T2D). In this study, by using the strategy of pharmacophore-based virtual screening, a novel scaffold inhibitor targeted the AMP allosteric site of human liver FBPase were screened, their inhibitory activities were further tested. The experimental results showed that compound H27 exhibited high inhibitory activities with the IC50 value of 5.3 μM. Therefore, compound H27 was chosen as the probe molecule, it's possible binding conformation targeted into FBPase was identified by using DOX2.0 strategy. The importance of key residues (T27, T31, K112 and R140) in allosteric site of FBPase for the binding inhibitors were validated by mutation experiments. The agreement between theory and experiment suggest that the interactional information of FBPase and inhibitors (H27) were reliable. On basis of these rational interactional information, the compound H29 was further designed to exhibit more potential FBPase inhibition (IC50 = 2.5 μM).
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