Structural Probing with MNase Tethered to Ribosome Assembly Factors Resolves Flexible RNA Regions within the Nascent Pre-Ribosomal RNA

The synthesis of ribosomes involves the correct folding of the pre-ribosomal RNA within pre-ribosomal particles. The first ribosomal precursor or small subunit processome assembles stepwise on the nascent transcript of the 35S gene. At the earlier stages, the pre-ribosomal particles undergo structur...

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Main Authors: Tom Dielforder, Christina Maria Braun, Fabian Hölzgen, Shuang Li, Mona Thiele, Marina Huber, Uli Ohmayer, Jorge Perez-Fernandez
Format: Article
Language:English
Published: MDPI AG 2022-01-01
Series:Non-Coding RNA
Subjects:
Online Access:https://www.mdpi.com/2311-553X/8/1/1
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author Tom Dielforder
Christina Maria Braun
Fabian Hölzgen
Shuang Li
Mona Thiele
Marina Huber
Uli Ohmayer
Jorge Perez-Fernandez
author_facet Tom Dielforder
Christina Maria Braun
Fabian Hölzgen
Shuang Li
Mona Thiele
Marina Huber
Uli Ohmayer
Jorge Perez-Fernandez
author_sort Tom Dielforder
collection DOAJ
description The synthesis of ribosomes involves the correct folding of the pre-ribosomal RNA within pre-ribosomal particles. The first ribosomal precursor or small subunit processome assembles stepwise on the nascent transcript of the 35S gene. At the earlier stages, the pre-ribosomal particles undergo structural and compositional changes, resulting in heterogeneous populations of particles with highly flexible regions. Structural probing methods are suitable for resolving these structures and providing evidence about the architecture of ribonucleoprotein complexes. Our approach used MNase tethered to the assembly factors Nan1/Utp17, Utp10, Utp12, and Utp13, which among other factors, initiate the formation of the small subunit processome. Our results provide dynamic information about the folding of the pre-ribosomes by elucidating the relative organization of the 5′ETS and ITS1 regions within the 35S and U3 snoRNA around the C-terminal domains of Nan1/Utp17, Utp10, Utp12, and Utp13.
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spelling doaj.art-75ba1be2daa345b19f37814f74fa6fd22022-12-21T20:22:02ZengMDPI AGNon-Coding RNA2311-553X2022-01-0181110.3390/ncrna8010001Structural Probing with MNase Tethered to Ribosome Assembly Factors Resolves Flexible RNA Regions within the Nascent Pre-Ribosomal RNATom Dielforder0Christina Maria Braun1Fabian Hölzgen2Shuang Li3Mona Thiele4Marina Huber5Uli Ohmayer6Jorge Perez-Fernandez7Department of Biochemistry III, University of Regensburg, Universitätstrasse 31, D-93051 Regensburg, GermanyDepartment of Biochemistry III, University of Regensburg, Universitätstrasse 31, D-93051 Regensburg, GermanyDepartment of Biochemistry III, University of Regensburg, Universitätstrasse 31, D-93051 Regensburg, GermanyDepartment of Biochemistry III, University of Regensburg, Universitätstrasse 31, D-93051 Regensburg, GermanyDepartment of Biochemistry III, University of Regensburg, Universitätstrasse 31, D-93051 Regensburg, GermanyDepartment of Biochemistry III, University of Regensburg, Universitätstrasse 31, D-93051 Regensburg, GermanyDepartment of Biochemistry III, University of Regensburg, Universitätstrasse 31, D-93051 Regensburg, GermanyDepartment of Biochemistry III, University of Regensburg, Universitätstrasse 31, D-93051 Regensburg, GermanyThe synthesis of ribosomes involves the correct folding of the pre-ribosomal RNA within pre-ribosomal particles. The first ribosomal precursor or small subunit processome assembles stepwise on the nascent transcript of the 35S gene. At the earlier stages, the pre-ribosomal particles undergo structural and compositional changes, resulting in heterogeneous populations of particles with highly flexible regions. Structural probing methods are suitable for resolving these structures and providing evidence about the architecture of ribonucleoprotein complexes. Our approach used MNase tethered to the assembly factors Nan1/Utp17, Utp10, Utp12, and Utp13, which among other factors, initiate the formation of the small subunit processome. Our results provide dynamic information about the folding of the pre-ribosomes by elucidating the relative organization of the 5′ETS and ITS1 regions within the 35S and U3 snoRNA around the C-terminal domains of Nan1/Utp17, Utp10, Utp12, and Utp13.https://www.mdpi.com/2311-553X/8/1/1ribosome biogenesisSSU-processome<i>S. cerevisiae</i>structural probingRNA
spellingShingle Tom Dielforder
Christina Maria Braun
Fabian Hölzgen
Shuang Li
Mona Thiele
Marina Huber
Uli Ohmayer
Jorge Perez-Fernandez
Structural Probing with MNase Tethered to Ribosome Assembly Factors Resolves Flexible RNA Regions within the Nascent Pre-Ribosomal RNA
Non-Coding RNA
ribosome biogenesis
SSU-processome
<i>S. cerevisiae</i>
structural probing
RNA
title Structural Probing with MNase Tethered to Ribosome Assembly Factors Resolves Flexible RNA Regions within the Nascent Pre-Ribosomal RNA
title_full Structural Probing with MNase Tethered to Ribosome Assembly Factors Resolves Flexible RNA Regions within the Nascent Pre-Ribosomal RNA
title_fullStr Structural Probing with MNase Tethered to Ribosome Assembly Factors Resolves Flexible RNA Regions within the Nascent Pre-Ribosomal RNA
title_full_unstemmed Structural Probing with MNase Tethered to Ribosome Assembly Factors Resolves Flexible RNA Regions within the Nascent Pre-Ribosomal RNA
title_short Structural Probing with MNase Tethered to Ribosome Assembly Factors Resolves Flexible RNA Regions within the Nascent Pre-Ribosomal RNA
title_sort structural probing with mnase tethered to ribosome assembly factors resolves flexible rna regions within the nascent pre ribosomal rna
topic ribosome biogenesis
SSU-processome
<i>S. cerevisiae</i>
structural probing
RNA
url https://www.mdpi.com/2311-553X/8/1/1
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