3qra | pdb_00003qra

The crystal structure of Ail, the attachment invasion locus protein of Yersinia pestis

spinqualitylabelsall models 3qra, resolution 1.80Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 3qra is a 1 chain structure with sequence from Yersinia pestis. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: C8E Related: 3qrc Gene: ail, YPO2905 (Yersinia pestis) Resources: FirstGlance, OCA, RCSB, PDBsum Publication Abstract from PubMed Ail is an outer membrane protein from Yersinia pestis that is highly expressed in a rodent model of bubonic plague, making it a good candidate for vaccine development. Ail is important for attaching to host cells and evading host immune responses, facilitating rapid progression of a plague infection. Binding to host cells is important for injection of cytotoxic Yersinia outer proteins. To learn more about how Ail mediates adhesion, we solved two high-resolution crystal structures of Ail, with no ligand bound and in complex with a heparin analog called sucrose octasulfate. We identified multiple adhesion targets, including laminin and heparin, and showed that a 40 kDa domain of laminin called LG4-5 specifically binds to Ail. We also evaluated the contribution of laminin to delivery of Yops to HEp-2 cells. This work constitutes a structural description of how a bacterial outer membrane protein uses a multivalent approach to bind host cells. Structural Insights into Ail-Mediated Adhesion in Yersinia pestis.,Yamashita S, Lukacik P, Barnard TJ, Noinaj N, Felek S, Tsang TM, Krukonis ES, Hinnebusch BJ, Buchanan SK Structure. 2011 Nov 9;19(11):1672-82. PMID:22078566 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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