8z2u

Crystal structure of trehalose synthase mutamt E324D from Deinococcus radiodurans complexed with validoxylamine A (VAA)

spinqualitylabelsall models 8z2u, resolution 2.90Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 8z2u is a 4 chain structure with sequence from Deinococcus radiodurans R1. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.9Å Ligands: CA, MG, VDM Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function I3NX86_DEIRA Publication Abstract from PubMed Trehalose synthase (TreS) catalyzes the reversible interconversion of maltose to trehalose, playing a vital role in trehalose production. Understanding the catalytic mechanism of TreS is crucial for optimizing the enzyme activity and enhancing its suitability for industrial applications. Here, we report the crystal structures of both the wild type and the E324D mutant of Deinococcus radiodurans trehalose synthase in complex with the trehalose analogue, validoxylamine A. By employing structure-guided mutagenesis, we identified N253, E320, and E324 as crucial residues within the +1 subsite for isomerase activity. Based on these complex structures, we propose the catalytic mechanism underlying the reversible interconversion of maltose to trehalose. These findings significantly advance our comprehension of the reaction mechanism of TreS. Structural and Mutational Analyses of Trehalose Synthase from Deinococcus radiodurans Reveal the Interconversion of Maltose-Trehalose Mechanism.,Ye LC, Chow SY, Chang SC, Kuo CH, Wang YL, Wei YJ, Lee GC, Liaw SH, Chen WM, Chen SC J Agric Food Chem. 2024 Aug 21;72(33):18649-18657. doi: 10.1021/acs.jafc.4c03661. , Epub 2024 Aug 7. PMID:39109746 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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