6d6n | pdb_00006d6n

The structure of ligand binding domain of LasR in complex with TP-1 homolog, compound 16

spinqualitylabelsall models 6d6n, resolution 1.81Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 6d6n is a 4 chain structure with sequence from Pseudomonas aeruginosa PAO1. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 1.81Å Ligands: FXJ, PHE Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function LASR_PSEAE Transcriptional activator of elastase structural gene (LasB). Binds to the PAI autoinducer. Publication Abstract from PubMed Chemical strategies to block quorum sensing (QS) could provide a route to attenuate virulence in bacterial pathogens. Considerable research has focused on this approach in Pseudomonas aeruginosa, which uses the LuxR-type receptor LasR to regulate much of its QS network. Non-native ligands that antagonize LasR have been developed, yet we have little understanding of the mode by which these compounds interact with LasR and alter its function, as the receptor is unstable in their presence. Herein, we report an approach to circumvent this challenge through the study of a series of synthetic LasR agonists with varying levels of potency. Structural investigations of these ligands with the LasR ligand-binding domain reveal that certain agonists can enforce a conformation that deviates from that observed for other, often more potent agonists. These results, when combined with cell-based and biophysical analyses, suggest a functional model for LasR that could guide future ligand design. Structural and Biochemical Studies of Non-native Agonists of the LasR Quorum-Sensing Receptor Reveal an L3 Loop "Out" Conformation for LasR.,O'Reilly MC, Dong SH, Rossi FM, Karlen KM, Kumar RS, Nair SK, Blackwell HE Cell Chem Biol. 2018 Jul 11. pii: S2451-9456(18)30221-6. doi:, 10.1016/j.chembiol.2018.06.007. PMID:30033130 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Transcriptional activator 3D structures

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