6p4q

Salmonella typhi PltB Homopentamer N29K Mutant with Neu5Ac-alpha-2-3-Gal-beta-1-4-GlcNAc Glycans

spinqualitylabelsall models 6p4q, resolution 1.77Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 6p4q is a 5 chain structure with sequence from Salmonella enterica subsp. enterica serovar Typhi str. CT18. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 1.77Å Ligands: GAL, NAG, SIA Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function Q8Z6A3_SALTI Publication Abstract from PubMed Typhoidal and non-typhoidal Salmonelleae (NTS) cause typhoid fever and gastroenteritis, respectively, in humans. Salmonella typhoid toxin contributes to typhoid disease progression and chronic infection, but little is known about the role of its NTS ortholog. We found that typhoid toxin and its NTS ortholog induce different clinical presentations. The PltB subunit of each toxin exhibits different glycan-binding preferences that correlate with glycan expression profiles of host cells targeted by each bacterium at the primary infection or intoxication sites. Through co-crystal structures of PltB subunits bound to specific glycan receptor moieties, we show that they induce markedly different glycan-binding preferences and virulence outcomes. Furthermore, immunization with the NTS S. Javiana or its toxin offers cross-reactive protection against lethal-dose typhoid toxin challenge. Cumulatively, these results offer insights into the evolution of host adaptations in Salmonella AB toxins, their cell and tissue tropisms, and the design for improved typhoid vaccines and therapeutics. Salmonella Typhoid Toxin PltB Subunit and Its Non-typhoidal Salmonella Ortholog Confer Differential Host Adaptation and Virulence.,Lee S, Yang YA, Milano SK, Nguyen T, Ahn C, Sim JH, Thompson AJ, Hillpot EC, Yoo G, Paulson JC, Song J Cell Host Microbe. 2020 Jun 10;27(6):937-949.e6. doi: 10.1016/j.chom.2020.04.005., Epub 2020 May 11. PMID:32396840 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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