3vmw

Crystal structure of pectate lyase Bsp165PelA from Bacillus sp. N165 in complex with trigalacturonate

spinqualitylabelsall models 3vmw, resolution 1.90Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 3vmw is a 1 chain structure with sequence from Bacillus sp. N16-5. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 1.9Å Ligands: ADA, SO4 Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function D0VP31_9BACI Publication Abstract from PubMed The pectate lyase (Bsp165PelA) from Bacillus sp. N16-5 has great potential in industrial applications because it shows high specific activity under extremely alkaline conditions. Besides, activity measurement of Bsp165PelA does not require addition of calcium, in a way different from the other pectate lyases. Here we report crystal structures of Bsp165PelA in apo-form and in complex with trigalacturonate. The parallel beta-helix, active site residues and substrate binding cleft are similar to those in the other pectate lyases from Polysaccharide Lyase family 1. However, some of the highly conserved Ca(2+) binding residues and secondary structures are altered in Bsp165PelA, making it difficult to coordinate with Ca(2+) as in the other pectate lyases. We found Bsp165PelA forms some direct enzyme-substrate interactions instead of using Ca(2+) ions bridging in the extremely alkaline environment. Crystal structure and substrate-binding mode of a novel pectate lyase from alkaliphilic Bacillus sp. N16-5.,Zheng Y, Huang CH, Liu W, Ko TP, Xue Y, Zhou C, Guo RT, Ma Y Biochem Biophys Res Commun. 2012 Apr 6;420(2):269-74. Epub 2012 Mar 3. PMID:22414692 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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