PXD052727-1

PXD052727 is an original dataset announced via ProteomeXchange.

Title	Gene expression analysis of yeast strains with a nonsense mutation in the eRF3-coding gene highlights possible mechanisms of adaptation
Description	In yeast Saccharomyces cerevisiae, there are two translation termination factors, eRF1 (SUP45) and eRF3 (SUP35), which are essential for viability. Previous studies have revealed that presence of nonsense mutations in these genes leads to amplification of mutant alleles (sup35-n and sup45-n) which appears to be necessary for viability of such cells. However, the mechanism of this phenomenon remained unclear. In this study, we used RNA-Seq and proteome analysis to reveal the complete set of gene expression changes that occur during cellular adaptation to the introduction of the sup35-218 nonsense allele. Our analysis demonstrated significant changes in the transcription of genes that control the cell cycle: decrease in the expression of genes of the anaphase promoting complex APC/C (APC9, CDC23), their activator CDC20 and an increase in the expression of cyclins that induce DNA biosynthesis. We propose a model according to which yeast adaptation to nonsense mutations in the translation termination factor genes occurs as a result of a delayed cell cycle progression beyond the G2-M stage, which leads to an extension of the S and G2 phases and an increase in the number of copies of the mutant sup35-n allele.
HostingRepository	PRIDE
AnnounceDate	2026-08-17
AnnouncementXML	Submission_2026-08-16_16:12:47.415.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	Lavrentii Danilov
SpeciesList	scientific name: Saccharomyces cerevisiae (Baker's yeast); NCBI TaxID: NEWT:4932;
ModificationList	No PTMs are included in the dataset
Instrument	autoflex

Revision	Datetime	Status	ChangeLog Entry
0	2024-05-30 13:02:45	ID requested
⏵ 1	2026-08-16 16:12:48	announced

Maksiutenko EM, Barbitoff YA, Danilov LG, Matveenko AG, Zemlyanko OM, Efremova EP, Moskalenko SE, Zhouravleva GA, Gene Expression Analysis of Yeast Strains with a Nonsense Mutation in the eRF3-Coding Gene Highlights Possible Mechanisms of Adaptation. Int J Mol Sci, 25(12):(2024) [pubmed]

10.3390/ijms25126308;

submitter keyword: 15 RNA-seq, CDC28, yeast, nonsense mutations, eRF3, CDC23,translation termination, cell cycle, CDC20, proteome, FKH1, release factors

Galina A. Zhouravleva
contact affiliation	professor Department of Genetics and Biotechnology, Saint-Petersburg State University
contact email	g.zhuravleva@spbu.ru
lab head
Lavrentii Danilov
contact affiliation	Saint-Petersburg State University
contact email	lavrentydanilov@gmail.com
dataset submitter

Dataset FTP location NOTE: Most web browsers have now discontinued native support for FTP access within the browser window. But you can usually install another FTP app (we recommend FileZilla) and configure your browser to launch the external application when you click on this FTP link. Or otherwise, launch an app that supports FTP (like FileZilla) and use this address: ftp://ftp.pride.ebi.ac.uk/pride/data/archive/2026/08/PXD052727

PRIDE project URI

• PRIDE
  1. PXD052727
     1. Label: PRIDE project
     2. Name: Gene expression analysis of yeast strains with a nonsense mutation in the eRF3-coding gene highlights possible mechanisms of adaptation