| Téléchargement | - Voir le manuscrit accepté : Genetic selection designed to stabilize proteins uncovers a chaperone called Spy (PDF, 1.4 Mio)
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| DOI | Trouver le DOI : https://doi.org/10.1038/nsmb.2016 |
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| Auteur | Rechercher : Quan, Shu; Rechercher : Koldewey, Philipp; Rechercher : Tapley, Tim; Rechercher : Kirsch, Nadine; Rechercher : Ruane, Karen M.; Rechercher : Pfizenmaier, Jennifer; Rechercher : Shi, Rong; Rechercher : Hofmann, Stephan; Rechercher : Foit, Linda; Rechercher : Ren, Guoping; Rechercher : Jakob, Ursula; Rechercher : Xu, Zhaohui; Rechercher : Cygler, Miroslaw1; Rechercher : Bardwell, James C.A. |
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| Affiliation | - Conseil national de recherches du Canada. Institut de recherche en biotechnologie du CNRC
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| Format | Texte, Article |
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| Résumé | To optimize the in vivo folding of proteins, we linked protein stability to antibiotic resistance, thereby forcing bacteria to effectively fold and stabilize proteins. When we challenged Escherichia coli to stabilize a very unstable periplasmic protein, it massively overproduced a periplasmic protein called Spy, which increases the steady-state levels of a set of unstable protein mutants up to 700-fold. In vitro studies demonstrate that the Spy protein is an effective ATP-independent chaperone that suppresses protein aggregation and aids protein refolding. Our strategy opens up new routes for chaperone discovery and the custom tailoring of the in vivo folding environment. Spy forms thin, apparently flexible cradle-shaped dimers. The structure of Spy is unlike that of any previously solved chaperone, making it the prototypical member of a new class of small chaperones that facilitate protein refolding in the absence of energy cofactors. |
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| Date de publication | 2011-02-13 |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro du CNRC | NRCC 53151 |
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| Numéro NPARC | 18397759 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | fbff2b26-34a3-4a02-8422-b658c2ebf8d8 |
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| Enregistrement créé | 2012-03-06 |
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| Enregistrement modifié | 2020-04-21 |
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