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• W2345293800 endingPage "1916" @default.
• W2345293800 startingPage "1908" @default.
• W2345293800 abstract "The human Glucose Transporter 1 (hGLUT1 or SLC2A1) is a facilitative membrane transporter found in the liver, intestines, kidney, and brain, where it transports sugars such as d-glucose and d-galactose. Genetic variations in hGLUT1 are associated with a broad range of diseases and metabolic disorders. For example, hGLUT1 is upregulated in various cancer types (e.g., breast carcinoma) to support the increased anaerobic glycolysis and the Warburg effect. Thus, hGLUT1 is an emerging therapeutic target, which also transports commonly used cancer biomarkers (e.g., 18F-DG). In this study, we use computational prediction followed by experimental testing, to characterize hGLUT1. We construct homology models of hGLUT1 in a partially occluded outward open (“occluded”) conformation based on the X-ray structure of the E. coli xylose transporter, XylE. Comparison of the binding site of the occluded models to experimentally determined hGLUT structures revealed a hydrophobic pocket adjacent to the sugar-binding site, which was tested experimentally via site-directed mutagenesis. Virtual screening of various libraries of purchasable compounds against the occluded models, followed by experimental testing with cellular assays revealed seven previously unknown hGLUT1 ligands with IC50 values ranging from 0.45 μM to 59 μM. These ligands represent three unique chemotypes that are chemically different from any other known hGLUT1 ligands. The newly characterized hydrophobic pocket can potentially be utilized by the new ligands for increased affinity. Furthermore, the previously unknown hGLUT1 ligands can serve as chemical tools to further characterize hGLUT1 function or lead molecules for future drug development." @default.
• W2345293800 created "2016-06-24" @default.
• W2345293800 creator A5017906802 @default.
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• W2345293800 date "2016-05-11" @default.
• W2345293800 modified "2023-10-01" @default.
• W2345293800 title "Inhibitor Discovery for the Human GLUT1 from Homology Modeling and Virtual Screening" @default.
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• W2345293800 doi "https://doi.org/10.1021/acschembio.6b00304" @default.
• W2345293800 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/5356226" @default.
• W2345293800 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/27128978" @default.
• W2345293800 hasPublicationYear "2016" @default.
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