PUBLICATION

Znf598-mediated Rps10/eS10 ubiquitination contributes to the ribosome ubiquitination dynamics during zebrafish development

Authors
Ugajin, N., Imami, K., Takada, H., Ishihama, Y., Chiba, S., Mishima, Y.
ID
ZDB-PUB-231002-122
Date
2023
Source
RNA (New York, N.Y.)   29(12): 1910-1927 (Journal)
Registered Authors
Mishima, Yuichiro
Keywords
development, ribosome, ubiquitination, zebrafish
MeSH Terms
  • Animals
  • Protein Biosynthesis*
  • Ribosomal Proteins/genetics
  • Ribosomal Proteins/metabolism
  • Ribosomes/metabolism
  • Ubiquitin/metabolism
  • Ubiquitin-Protein Ligases/genetics
  • Ubiquitination
  • Zebrafish*/genetics
  • Zebrafish*/metabolism
PubMed
37751929 Full text @ RNA
Abstract
Ribosome is a translational apparatus that comprises about 80 ribosomal proteins and four rRNAs. Recent studies reported that ribosome ubiquitination is crucial for translational regulation and ribosome-associated quality control (RQC). However, little is known about the dynamics of ribosome ubiquitination under complex biological processes of multicellular organisms. To explore ribosome ubiquitination during animal development, we generated a zebrafish strain that expresses a FLAG-tagged ribosomal protein Rpl36/eL36 from its endogenous locus. We examined ribosome ubiquitination during zebrafish development by combining affinity purification of ribosomes from rpl36-FLAG zebrafish embryos with immunoblotting analysis. Our findings showed that ubiquitination of ribosomal proteins dynamically changed as development proceeded. We also showed that during zebrafish development, the ribosome was ubiquitinated by Znf598, an E3 ubiquitin ligase that activates RQC. Ribosomal protein Rps10/eS10 was found to be a key ubiquitinated protein during development. Furthermore, we showed that Rps10/eS10 ubiquitination-site mutations reduced the overall ubiquitination pattern of ribosome. These results demonstrate the complexity and dynamics of ribosome ubiquitination during zebrafish development.
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Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping