2bib | pdb_00002bib

CRYSTAL STRUCTURE OF THE COMPLETE MODULAR TEICHIOIC ACID PHOSPHORYLCHOLINE ESTERASE PCE (CBPE) FROM STREPTOCOCCUS PNEUMONIAE

spinqualitylabelsall models 2bib, resolution 1.92Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 2bib is a 1 chain structure with sequence from Streptococcus pneumoniae. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: BTB, CA, PC, ZN Resources: FirstGlance, OCA, RCSB, PDBsum Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMed Phosphorylcholine, a specific component of the pneumococcal cell wall, is crucial in pathogenesis. It directly binds to the human platelet-activating factor (PAF) receptor and acts as a docking station for the family of surface-located choline-binding proteins (CBP). The first structure of a complete pneumococcal CBP, Pce (or CbpE), has been solved in complex with the reaction product and choline analogs. Pce has a novel modular structure, with a globular N-terminal module containing a binuclear Zn(2+) catalytic center, and an elongated choline-binding module. Residues involved in substrate binding and catalysis are described and modular configuration of the active center accounts for in vivo features of teichoic acid hydrolysis. The hydrolysis of PAF by Pce and its regulatory role in phosphorylcholine decoration of the bacterial surface provide new insights into the critical function of Pce in pneumococcal adherence and invasiveness. Insights into pneumococcal pathogenesis from the crystal structure of the modular teichoic acid phosphorylcholine esterase Pce.,Hermoso JA, Lagartera L, Gonzalez A, Stelter M, Garcia P, Martinez-Ripoll M, Garcia JL, Menendez M Nat Struct Mol Biol. 2005 Jun;12(6):533-8. Epub 2005 May 15. PMID:15895092 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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