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The nucleolar DExD/H protein Hel66 is involved in ribosome biogenesis in Trypanosoma brucei

Please always quote using this URN: urn:nbn:de:bvb:20-opus-263872
  • The biosynthesis of ribosomes is a complex cellular process involving ribosomal RNA, ribosomal proteins and several further trans-acting factors. DExD/H box proteins constitute the largest family of trans-acting protein factors involved in this process. Several members of this protein family have been directly implicated in ribosome biogenesis in yeast. In trypanosomes, ribosome biogenesis differs in several features from the process described in yeast. Here, we have identified the DExD/H box helicase Hel66 as being involved in ribosomeThe biosynthesis of ribosomes is a complex cellular process involving ribosomal RNA, ribosomal proteins and several further trans-acting factors. DExD/H box proteins constitute the largest family of trans-acting protein factors involved in this process. Several members of this protein family have been directly implicated in ribosome biogenesis in yeast. In trypanosomes, ribosome biogenesis differs in several features from the process described in yeast. Here, we have identified the DExD/H box helicase Hel66 as being involved in ribosome biogenesis. The protein is unique to Kinetoplastida, localises to the nucleolus and its depletion via RNAi caused a severe growth defect. Loss of the protein resulted in a decrease of global translation and accumulation of rRNA processing intermediates for both the small and large ribosomal subunits. Only a few factors involved in trypanosome rRNA biogenesis have been described so far and our findings contribute to gaining a more comprehensive picture of this essential process.show moreshow less

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Metadaten
Author: Majeed Bakari-Soale, Nonso Josephat Ikenga, Marion Scheibe, Falk Butter, Nicola G. Jones, Susanne Kramer, Markus Engstler
URN:urn:nbn:de:bvb:20-opus-263872
Document Type:Journal article
Faculties:Fakultät für Biologie / Theodor-Boveri-Institut für Biowissenschaften
Language:English
Parent Title (English):Scientific Reports
Year of Completion:2021
Volume:11
Issue:1
Article Number:18325
Source:Scientific Reports (2021) 11:1, 18325. https://doi.org/10.1038/s41598-021-97020-0
DOI:https://doi.org/10.1038/s41598-021-97020-0
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 57 Biowissenschaften; Biologie / 570 Biowissenschaften; Biologie
Tag:RNA; infection; parasite evolution; parasite genetics
Release Date:2022/04/25
Open-Access-Publikationsfonds / Förderzeitraum 2021
Licence (German):License LogoCC BY: Creative-Commons-Lizenz: Namensnennung 4.0 International