Open Access
Open access
Nature Communications, volume 11, issue 1, publication number 156

Identification of distinct maturation steps involved in human 40S ribosomal subunit biosynthesis

Nieto Blanca 1, 2
Gaspar Sonia G 1, 2
Moriggi Giulia 1, 2
Pestov Dimitri G. 3
Bustelo Xosé R. 1, 2, 4
Dosil Mercedes 1, 2, 4, 5
1
 
Centro de Investigación del Cáncer and Instituto de Biología Molecular y Celular del Cáncer, CSIC-University of Salamanca, Salamanca, Spain
2
 
Instituto de Biología Molecular y Celular del Cáncer, CSIC-University of Salamanca, Salamanca, Spain
3
 
Department of Cell Biology and Neuroscience, Rowan University School of Osteopathic Medicine, Stratford, USA
4
 
Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), CSIC-University of Salamanca, Salamanca, Spain
5
 
Departamento de Bioquímica y Biología Molecular, University of Salamanca, Salamanca, Spain
Publication typeJournal Article
Publication date2020-01-09
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor16.6
ISSN20411723
General Chemistry
General Biochemistry, Genetics and Molecular Biology
Multidisciplinary
General Physics and Astronomy
Abstract
Technical problems intrinsic to the purification of preribosome intermediates have limited our understanding of ribosome biosynthesis in humans. Addressing this issue is important given the implication of this biological process in human disease. Here we report a preribosome purification and tagging strategy that overcomes some of the existing technical difficulties. Using these tools, we find that the pre-40S precursors go through two distinct maturation phases inside the nucleolus and follow a regulatory step that precedes late maturation in the cytoplasm. This regulatory step entails the intertwined actions of both PARN (a metazoan-specific ribonuclease) and RRP12 (a phylogenetically conserved 40S biogenesis factor that has acquired additional functional features in higher eukaryotes). Together, these results demonstrate the usefulness of this purification method for the dissection of ribosome biogenesis in human cells. They also identify distinct maturation stages and metazoan-specific regulatory mechanisms involved in the generation of the human 40S ribosomal subunit. Ribosome synthesis is a complex multi-step process. Here the authors present a method that allows the efficient isolation and characterization of the preribosomal complexes formed along the entire ribosome synthesis pathway in human cells.

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GOST Copy
Nieto B. et al. Identification of distinct maturation steps involved in human 40S ribosomal subunit biosynthesis // Nature Communications. 2020. Vol. 11. No. 1. 156
GOST all authors (up to 50) Copy
Nieto B., Gaspar S. G., Moriggi G., Pestov D. G., Bustelo X. R., Dosil M. Identification of distinct maturation steps involved in human 40S ribosomal subunit biosynthesis // Nature Communications. 2020. Vol. 11. No. 1. 156
RIS |
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RIS Copy
TY - JOUR
DO - 10.1038/s41467-019-13990-w
UR - https://doi.org/10.1038%2Fs41467-019-13990-w
TI - Identification of distinct maturation steps involved in human 40S ribosomal subunit biosynthesis
T2 - Nature Communications
AU - Nieto, Blanca
AU - Gaspar, Sonia G
AU - Moriggi, Giulia
AU - Pestov, Dimitri G.
AU - Bustelo, Xosé R.
AU - Dosil, Mercedes
PY - 2020
DA - 2020/01/09 00:00:00
PB - Springer Nature
IS - 1
VL - 11
PMID - 31919354
SN - 2041-1723
ER -
BibTex
Cite this
BibTex Copy
@article{2020_Nieto,
author = {Blanca Nieto and Sonia G Gaspar and Giulia Moriggi and Dimitri G. Pestov and Xosé R. Bustelo and Mercedes Dosil},
title = {Identification of distinct maturation steps involved in human 40S ribosomal subunit biosynthesis},
journal = {Nature Communications},
year = {2020},
volume = {11},
publisher = {Springer Nature},
month = {jan},
url = {https://doi.org/10.1038%2Fs41467-019-13990-w},
number = {1},
doi = {10.1038/s41467-019-13990-w}
}
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