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https://ir.library.oregonstate.edu/concern/articles/1z40kv75j

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  • Ligand activation of the aryl hydrocarbon (AHR) has profound effects upon the immunological status of the gastrointestinal tract, establishing and maintaining signaling networks, which facilitate host-microbe homeostasis at the mucosal interface. However, the identity of the ligand(s) responsible for such AHR-mediated activation within the gut remains to be firmly established. Here, we combine in vitro ligand binding, quantitative gene expression, protein-DNA interaction and ligand structure activity analyses together with in silico modeling of the AHR ligand binding domain to identify indole, a microbial tryptophan metabolite, as a human-AHR selective agonist. Human AHR, acting as a host indole receptor may exhibit a unique bimolecular (2:1) binding stoichiometry not observed with typical AHR ligands. Such bimolecular indole-mediated activation of the human AHR within the gastrointestinal tract may provide a foundation for inter-kingdom signaling between the enteric microflora and the immune system to promote commensalism within the gut.
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  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2015-08-21T15:49:32Z (GMT) No. of bitstreams: 3 license_rdf: 1370 bytes, checksum: cd1af5ab51bcc7a5280cf305303530e9 (MD5) BissonWilliamEnvironMoleToxAdaptationHumanAryl.pdf: 2140284 bytes, checksum: a6a58a645828bf48639411cdd0d26cab (MD5) BissonWilliamEnvironMoleToxAdaptationHumanArylSuppInfo.pdf: 2441638 bytes, checksum: 191cbc9414572d266887e86869429fea (MD5)
  • description.provenance : Made available in DSpace on 2015-08-21T15:49:33Z (GMT). No. of bitstreams: 3 license_rdf: 1370 bytes, checksum: cd1af5ab51bcc7a5280cf305303530e9 (MD5) BissonWilliamEnvironMoleToxAdaptationHumanAryl.pdf: 2140284 bytes, checksum: a6a58a645828bf48639411cdd0d26cab (MD5) BissonWilliamEnvironMoleToxAdaptationHumanArylSuppInfo.pdf: 2441638 bytes, checksum: 191cbc9414572d266887e86869429fea (MD5) Previous issue date: 2015-08-03
  • description.provenance : Submitted by Patricia Black (patricia.black@oregonstate.edu) on 2015-08-21T15:48:55Z No. of bitstreams: 3 license_rdf: 1370 bytes, checksum: cd1af5ab51bcc7a5280cf305303530e9 (MD5) BissonWilliamEnvironMoleToxAdaptationHumanAryl.pdf: 2140284 bytes, checksum: a6a58a645828bf48639411cdd0d26cab (MD5) BissonWilliamEnvironMoleToxAdaptationHumanArylSuppInfo.pdf: 2441638 bytes, checksum: 191cbc9414572d266887e86869429fea (MD5)

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