4kar

Crystal structure of FDTS (TM0449) mutant (H53D) with FAD

spinqualitylabelsall models 4kar, resolution 2.03Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 4kar is a 4 chain structure with sequence from Thermotoga maritima MSB8. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.03Å Ligands: 2PE, FAD Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function THYX_THEMA Catalyzes the formation of dTMP and tetrahydrofolate from dUMP and methylenetetrahydrofolate. Publication Abstract from PubMed The identification of flavin-dependent thymidylate synthase (FDTS) as an essential enzyme and its occurrence in several pathogenic microbes opens opportunities for using FDTS enzyme as an excellent target for new antimicrobial drug discovery. In contrast to the human thymidylate synthase enzyme that utilizes methylene-tetrahydrofolate (CH2H4 folate) for the conversion of dUMP to dTMP, the microbial enzymes utilize an additional non-covalently bound FAD molecule for the hydride transfer from NAD(P)H. The structural and mechanistic differences between the human and microbial enzymes present an attractive opportunity for the design of antimicrobial compounds specific for the pathogens. We have determined the crystal structure of FDTS enzyme in complex with the methyl donor, CH2H4 folate. We describe here the structure of a FDTS mutant and compare it with other FDTS complex structures, including a FDTS-CH2H4 folate complex. We identified a conformational change essential for substrate binding and propose a strategy for the design of FDTS specific inhibitors. Flavin-Dependent Thymidylate Synthase as a Drug Target for Deadly Microbes: Mutational Study and a Strategy for Inhibitor Design.,Mathews II J Bioterror Biodef. 2013 Apr 20;Suppl 12:004. PMID:24563811 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Thymidylate synthase 3D structures

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