5kda

Crystal structure of the aromatic prenyltransferase AtaPT from Aspergillus terreus A8-4 in complex with dimethylallyl S-thiolodiphosphate and genistein

spinqualitylabelsall models 5kda, resolution 2.00Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 5kda is a 2 chain structure with sequence from Aspergillus terreus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2Å Ligands: DST, GEN Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function A0A1B0UHJ4_ASPTE Publication Abstract from PubMed Aromatic prenyltransferases (aPTases) transfer prenyl moieties from isoprenoid donors to various aromatic acceptors, some of which have the rare property of extreme enzymatic promiscuity toward both a variety of prenyl donors and a large diversity of acceptors. In this study, we discovered a new aPTase, AtaPT, from Aspergillus terreus that exhibits unprecedented promiscuity toward diverse aromatic acceptors and prenyl donors and also yields products with a range of prenylation patterns. Systematic crystallographic studies revealed various discrete conformations for ligand binding with donor-dependent acceptor specificity and multiple binding sites within a spacious hydrophobic substrate-binding pocket. Further structure-guided mutagenesis of active sites at the substrate-binding pocket is responsible for altering the specificity and promiscuity toward substrates and the diversity of product prenylations. Our study reveals the molecular mechanism underlying the promiscuity of AtaPT and suggests an efficient protein engineering strategy to generate new prenylated derivatives in drug discovery applications. Molecular insights into the enzyme promiscuity of an aromatic prenyltransferase.,Chen R, Gao B, Liu X, Ruan F, Zhang Y, Lou J, Feng K, Wunsch C, Li SM, Dai J, Sun F Nat Chem Biol. 2017 Feb;13(2):226-234. doi: 10.1038/nchembio.2263. Epub 2016 Dec , 19. PMID:27992881 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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