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Insights into the evolutionary conserved regulation of Rio ATPase activity

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Knuppel_2017_Insights_into_the_NAS_CC.pdf (7.351Mb)
Date
16/02/2018
Author
Knüppel, Robert
Christensen, Regitse
Gray, Fiona C.
Esser, Dominik
Strauss, Daniela
Medenbach, Jan
Siebers, Bettina
MacNeill, Stuart A.
LaRonde, Nicole
Ferreira-Cerca, Sébastien
Keywords
QH301 Biology
QD Chemistry
NDAS
BDC
R2C
Metadata
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Abstract
Eukaryotic ribosome biogenesis is a complex dynamic process which requires the action of numerous ribosome assembly factors. Among them, the eukaryotic Rio protein family members (Rio1, Rio2 and Rio3) belong to an ancient conserved atypical protein kinase/ ATPase family required for the maturation of the small ribosomal subunit (SSU). Recent structure-function analyses suggested an ATPase-dependent role of the Rio proteins to regulate their dynamic association with the nascent pre-SSU. However, the evolutionary origin of this feature and the detailed molecular mechanism that allows controlled activation of the catalytic activity remained to be determined. In this work we provide functional evidence showing a conserved role of the archaeal Rio proteins for the synthesis of the SSU in archaea. Moreover, we unravel a conserved RNA-dependent regulation of the Rio ATPases, which in the case of Rio2 involves, at least, helix 30 of the SSU rRNA and the P-loop lysine within the shared RIO domain. Together, our study suggests a ribosomal RNA-mediated regulatory mechanism enabling the appropriate stimulation of Rio2 catalytic activity and subsequent release of Rio2 from the nascent pre- 40S particle. Based on our findings we propose a unified release mechanism for the Rio proteins.
Citation
Knüppel , R , Christensen , R , Gray , F C , Esser , D , Strauss , D , Medenbach , J , Siebers , B , MacNeill , S A , LaRonde , N & Ferreira-Cerca , S 2018 , ' Insights into the evolutionary conserved regulation of Rio ATPase activity ' , Nucleic Acids Research , vol. 46 , no. 3 , pp. 1441-1456 . https://doi.org/10.1093/nar/gkx1236
Publication
Nucleic Acids Research
Status
Peer reviewed
DOI
https://doi.org/10.1093/nar/gkx1236
ISSN
0305-1048
Type
Journal article
Rights
Copright The Author(s) 2017. Published by Oxford University Press on behalf of Nucleic Acids Research. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com
Description
Department of Biochemistry III ‘House of the Ribosome’ and by the DFG Collaborative Research Center [SFB960-AP1] ‘Ribosome formation: principles of RNP biogenesis and control of their function’ (to S.F.-C.).; Work in the MacNeill laboratory was funded by Forskningsrådet for Natur og Univers (FNU) [sagsnr. 272-05-0446]; Scottish Universities Life Sciences Alliance (SULSA); Research in the Medenbach laboratory is supported by the Bavarian Research Network for Molecular Biosystems (BioSysNet); German Research Foundation (DFG) [ME4238/1-1]; DFG Collaborative Research Center [SFB960-B11] ‘Ribosome formation: principles of RNP biogenesis and control of their function’; German Federal Ministry of Education and Research (BMBF) within the framework of the e:Med research and funding concept [01ZX1401D]; Work in the Siebers laboratory was funded by a grant from the German Science Foundation (DFG) [SI642/10-1] from the Federal Ministry of Education and Research (BMBF) [0316188A]; Work in the LaRonde laboratory was funded by National Science Foundation [MCB0953493]; Publishing of this work was supported by the German Research Foundation (DFG) within the funding program Open Access Publishing. Funding for open access charge: DFG—Open Access program.
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/12350

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