2xmo | pdb_00002xmo

THE CRYSTAL STRUCTURE OF LMO2642

spinqualitylabelsall models 2xmo, resolution 1.70Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 2xmo is a 2 chain structure with sequence from Listeria monocytogenes. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: CA, FE, MN, PO4 Resources: FirstGlance, OCA, RCSB, PDBsum Publication Abstract from PubMed Listeria monocytogenes is a facultative intracellular pathogen invading humans and animals with the highest fatality rate among the food-borne pathogens. The Listeria pathogenic processes, such as cell entry and escape from phagosomes, depend on the actions of diverse bacterial factors, including lipoproteins. Here, we report the crystal structure of Lmo2642, a conserved putative lipoprotein containing a Ser/Thr phosphatase domain. The protein consists of two distinct domains: a catalytic domain that belongs to the metallophosphoesterase superfamily and an auxiliary alpha-helical bundle domain. The active site in the catalytic domain of Lmo2642 contains a dinuclear metal center in which Mn(2+) and Fe(3+) are preferentially positioned at the site1 and site2, respectively. On the basis of the structural analysis and enzymatic assays, we identified the biochemical activity of the protein as a cyclic nucleotide phosphodiesterase toward 2',3'- and 3',5'-cyclic nucleotides. Considering the cNMP phosphodiesterase activity and the putative surface localization of Lmo2642, we speculate that Lmo2642 has some potential roles in the host-pathogen interactions by changing the cAMP concentration of host cells during L. monocytogenes infection. Proteins 2011. (c) 2011 Wiley-Liss, Inc. Structural and functional analysis of the Lmo2642 cyclic nucleotide phosphodiesterase from Listeria monocytogenes.,Kim YG, Jeong JH, Ha NC, Kim KJ Proteins. 2010 Nov 30. doi: 10.1002/prot.22954. PMID:21246635 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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