2vq1

anti trimeric Lewis X Fab54-5C10-A

spinqualitylabelsall models 2vq1, resolution 2.50Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 2vq1 is a 4 chain structure with sequence from Mus musculus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.5Å Ligands: AZI, GLY, GOL Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT 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 Lewis X trisaccharides normally function as essential cell-cell interaction mediators. However, oligomers of Lewis X trisaccharides expressed by the parasite Schistosoma mansoni seem to be related to its evasion of the immune response of its human host. Here we show that monoclonal antibody 54-5C10-A, which is used to diagnose schistosomiasis in humans, interacts with oligomers of at least three Lewis X trisaccharides, but not with monomeric Lewis X. We describe the sequence and the 2.5 A crystal structure of its Fab fragment and infer a possible mode of binding of the polymeric Lewis X from docking studies. Our studies indicate a radically different mode of binding compared to Fab 291-2G3-A, which is specific for monomeric Lewis X, thus providing a structural explanation of the diagnostic success of 54-5C10-A. Characterization of a diagnostic Fab fragment binding trimeric Lewis X.,de Geus DC, van Roon AM, Thomassen EA, Hokke CH, Deelder AM, Abrahams JP Proteins. 2009 Aug 1;76(2):439-47. PMID:19173313 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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