6tig

Structure of the N terminal domain of Bc2L-C lectin (1-131) in complex with Globo H (H-type 3) antigen

spinqualitylabelsall models 6tig, resolution 1.90Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 6tig is a 3 chain structure with sequence from Burkholderia cenocepacia J2315. 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: FUC, GAL, GLA, NGA Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function B4EH86_BURCJ Publication Abstract from PubMed Lectins mediate adhesion of pathogens to host tissues, filling in a key role in the first steps of infection. Belonging to the opportunistic pathogen Burkholderia cenocepacia, BC2L-C is a superlectin with dual carbohydrate specificity, believed to mediate cross-linking between bacteria and host cells. Its C-terminal domain binds to bacterial mannosides while its N-terminal domain (BCL2-CN) recognizes fucosylated human epitopes. BC2L-CN presents a tumor necrosis factor alpha (TNF-) fold previously unseen in lectins with a novel fucose binding mode. We report, here, the production of a novel recombinant form of BC2L-CN (rBC2L-CN2), which allowed better protein stability and unprecedented co-crystallization with oligosaccharides. Isothermal calorimetry measurements showed no detrimental effect on ligand binding and data were obtained on the binding of Globo H hexasaccharide and l-galactose. Crystal structures of rBC2L-CN2 were solved in complex with two blood group antigens: H-type 1 and H-type 3 (Globo H) by X-ray crystallography. They provide new structural information on the binding site, of importance for the structural-based design of glycodrugs as new antimicrobials with antiadhesive properties. BC2L-C N-Terminal Lectin Domain Complexed with Histo Blood Group Oligosaccharides Provides New Structural Information.,Bermeo R, Bernardi A, Varrot A Molecules. 2020 Jan 7;25(2). pii: molecules25020248. doi:, 10.3390/molecules25020248. PMID:31936166 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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