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Correlated Inter-Domain Motions in Adenylate Kinase
Joint BSC-CRG-IRB Research Programme in Computational Biology, Barcelona Supercomputing Center - BSC, Barcelona, Spain.
Joint BSC-CRG-IRB Research Programme in Computational Biology, Institute for Research in Biomedicine – IRB Barcelona, Barcelona, Spain.
Umeå University, Faculty of Science and Technology, Department of Chemistry. (Chemical Biological Centre)
Joint BSC-CRG-IRB Research Programme in Computational Biology, Barcelona Supercomputing Center - BSC, Barcelona, Spain.
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2014 (English)In: PloS Computational Biology, ISSN 1553-734X, E-ISSN 1553-7358, Vol. 10, no 7, e1003721- p.Article in journal (Refereed) Published
Abstract [en]

Correlated inter-domain motions in proteins can mediate fundamental biochemical processes such as signal transduction and allostery. Here we characterize at structural level the inter-domain coupling in a multidomain enzyme, Adenylate Kinase (AK), using computational methods that exploit the shape information encoded in residual dipolar couplings (RDCs) measured under steric alignment by nuclear magnetic resonance (NMR). We find experimental evidence for a multi-state equilibrium distribution along the opening/closing pathway of Adenylate Kinase, previously proposed from computational work, in which inter-domain interactions disfavour states where only the AMP binding domain is closed. In summary, we provide a robust experimental technique for study of allosteric regulation in AK and other enzymes.

Place, publisher, year, edition, pages
PLOS , 2014. Vol. 10, no 7, e1003721- p.
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Chemical Sciences
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URN: urn:nbn:se:umu:diva-92957DOI: 10.1371/journal.pcbi.1003721ISI: 000339890900035OAI: oai:DiVA.org:umu-92957DiVA: diva2:746834
Available from: 2014-09-15 Created: 2014-09-09 Last updated: 2017-12-05Bibliographically approved

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Ådén, JörgenWolf-Watz, Magnus

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