Analysis of subunit folding contribution of three yeast large ribosomal subunit proteins required for stabilisation and processing of intermediate nuclear rRNA precursors

Poell, Gisela and Pilsl, Michael and Griesenbeck, Joachim and Tschochner, Herbert and Milkereit, Philipp (2021) Analysis of subunit folding contribution of three yeast large ribosomal subunit proteins required for stabilisation and processing of intermediate nuclear rRNA precursors. PLOS ONE, 16 (11): e0252497. ISSN 1932-6203,

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Abstract

In yeast and human cells many of the ribosomal proteins (r-proteins) are required for the stabilisation and productive processing of rRNA precursors. Functional coupling of r-protein assembly with the stabilisation and maturation of subunit precursors potentially promotes the production of ribosomes with defined composition. To further decipher mechanisms of such an intrinsic quality control pathway we analysed here the contribution of three yeast large ribosomal subunit r-proteins rpL2 (uL2), rpL25 (uL23) and rpL34 (eL34) for intermediate nuclear subunit folding steps. Structure models obtained from single particle cryo-electron microscopy analyses provided evidence for specific and hierarchic effects on the stable positioning and remodelling of large ribosomal subunit domains. Based on these structural and previous biochemical data we discuss possible mechanisms of r-protein dependent hierarchic domain arrangement and the resulting impact on the stability of misassembled subunits.

Item Type: Article
Uncontrolled Keywords: ASSEMBLY FACTORS; ENVIRONMENT; BIOGENESIS; DOMAINS; SYSTEM; MODEL; NMD3; LSG1; L25;
Subjects: 500 Science > 570 Life sciences
Divisions: Biology, Preclinical Medicine > Institut für Biochemie, Genetik und Mikrobiologie > Lehrstuhl für Biochemie III > Prof. Dr. Herbert Tschochner
Biology, Preclinical Medicine > Institut für Biochemie, Genetik und Mikrobiologie > Lehrstuhl für Biochemie III > Dr. Joachim Griesenbeck
Biology, Preclinical Medicine > Institut für Biochemie, Genetik und Mikrobiologie > Lehrstuhl für Biochemie III > Dr. Philipp Milkereit
Depositing User: Dr. Gernot Deinzer
Date Deposited: 05 Jul 2022 06:07
Last Modified: 05 Jul 2022 06:07
URI: https://pred.uni-regensburg.de/id/eprint/45578

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