4xcm

Crystal structure of the putative NlpC/P60 D,L endopeptidase from T. thermophilus

spinqualitylabelsall models 4xcm, resolution 2.65Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 4xcm is a 2 chain structure with sequence from Thermus thermophilus HB8. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.65Å Ligands: MSE Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function Q5SLM7_THET8 Publication Abstract from PubMed LysM domains, which are frequently present as repetitive entities in both bacterial and plant proteins, are known to interact with carbohydrates containing N-acetylglucosamine (GlcNAc) moieties, such as chitin and peptidoglycan. In bacteria, the functional significance of the involvement of multiple LysM domains in substrate binding has so far lacked support from high-resolution structures of ligand-bound complexes. Here, a structural study of the Thermus thermophilus NlpC/P60 endopeptidase containing two LysM domains is presented. The crystal structure and small-angle X-ray scattering solution studies of this endopeptidase revealed the presence of a homodimer. The structure of the two LysM domains co-crystallized with N-acetyl-chitohexaose revealed a new intermolecular binding mode that may explain the differential interaction between LysM domains and short or long chitin oligomers. By combining the structural information with the three-dimensional model of peptidoglycan, a model suggesting how protein dimerization enhances the recognition of peptidoglycan is proposed. An intermolecular binding mechanism involving multiple LysM domains mediates carbohydrate recognition by an endopeptidase.,Wong JE, Midtgaard SR, Gysel K, Thygesen MB, Sorensen KK, Jensen KJ, Stougaard J, Thirup S, Blaise M Acta Crystallogr D Biol Crystallogr. 2015 Mar 1;71(Pt 3):592-605. doi:, 10.1107/S139900471402793X. Epub 2015 Feb 26. PMID:25760608 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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