4pct

Crystal structure of a bacterial fucosidase with iminocyclitol (2S,3S,4R,5S)-3,4-dihydroxy-2-ethynyl-5-methylpyrrolidine

spinqualitylabelsall models 4pct, resolution 2.10Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 4pct is a 4 chain structure with sequence from Bacteroides thetaiotaomicron VPI-5482. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.1Å Ligands: H76, IMD, SO4 Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function Q8A3I4_BACTN Publication Abstract from PubMed Fucosidase inhibition shows potential in numerous therapeutic contexts. Substitution of fucose-like iminosugars with hydrophobic "aglycons" yields significant improvements in potency of fucosidase inhibition. Here we have prepared three new 2-aryl-3,4-dihydroxy-5-methylpyrrolidines featuring phenyl substituents in variable orientations with respect to the iminocyclitol core and at various distances from it to explore the key binding interactions that stabilise the enzyme-inhibitor complex. The presence of a triazole linker in one structure resulted in nanomolar inhibition of the fucosidase from bovine kidney (Ki =4.8 nM), thus giving rise to one of the most potent pyrrolidine-type inhibitors of this enzyme known to date. Exploiting the Hydrophobic Terrain in Fucosidases with Aryl-Substituted Pyrrolidine Iminosugars.,Hottin A, Wright DW, Davies GJ, Behr JB Chembiochem. 2014 Nov 26. doi: 10.1002/cbic.201402509. PMID:25427942 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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