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ATPase cycle controls the conformation of an archaeal chaperonin as visualized by cryo-electron microscopy

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Zitation

Gutsche, I., Mihalache, O., Hegerl, R., Typke, D., & Baumeister, W. (2000). ATPase cycle controls the conformation of an archaeal chaperonin as visualized by cryo-electron microscopy. FEBS Letters, 477(3), 278-282.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0010-7167-D
Zusammenfassung
Chaperonins are double-ring protein folding machines fueled by ATP binding and hydrolysis. Conformational rearrangements upon ATPase cycling of the group I chaperonins, typified by the Escherichia coli GroEL/GroES system, have been thoroughly investigated by cryo-electron microscopy and X-ray crystallography. For archaeal group II chaperonins, however, these methods have so far failed to provide a correlation between the structural and the functional states. Here, we show that the conformation of the native alpha beta-thermosome of Thermoplasma acidophilum in vitrified ice is strictly regulated by adenine nucleotides. (C) 2000 Federation of European Biochemical Societies. Published by Elsevier Science B.V. All rights reserved. [References: 18]