Spolupracovali sme na publikáciach
2021
1.
Misova, I; Pitelova, A; Budis, J; Gazdarica, J; Sedlackova, T; Jordakova, A; Benko, Z; Smondrkova, M; Mayerova, N; Pichlerova, K; Strieskova, L; Prevorovsky, M; Gregan, J; Cipak, L; Szemes, T; Polakova, S B
Repression of a large number of genes requires interplay between homologous recombination and HIRA Journal Article
V: Nucleic Acids Research, 49 (4), pp. 1914-1934, 2021, ISSN: 03051048.
Abstrakt | Linky | BibTeX | Značky: Epigenetics, Transcriptomics
@article{Misova20211914,
title = {Repression of a large number of genes requires interplay between homologous recombination and HIRA},
author = {I Misova and A Pitelova and J Budis and J Gazdarica and T Sedlackova and A Jordakova and Z Benko and M Smondrkova and N Mayerova and K Pichlerova and L Strieskova and M Prevorovsky and J Gregan and L Cipak and T Szemes and S B Polakova},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85102408904&doi=10.1093%2fnar%2fgkab027&partnerID=40&md5=77d6eafd60e9cb1a1c3c8237566b8cc1},
doi = {10.1093/nar/gkab027},
issn = {03051048},
year = {2021},
date = {2021-01-01},
urldate = {2021-01-01},
journal = {Nucleic Acids Research},
volume = {49},
number = {4},
pages = {1914-1934},
publisher = {Oxford University Press},
abstract = {During homologous recombination, Dbl2 protein is required for localisation of Fbh1, an F-box helicase that efficiently dismantles Rad51-DNA filaments. RNA-seq analysis of dbl2Δtranscriptome showed that the dbl2 deletion results in upregulation of more than 500 loci in Schizosaccharomyces pombe. Compared with the loci with no change in expression, the misregulated loci in dbl2Δare closer to long terminal and long tandem repeats. Furthermore, the misregulated loci overlap with antisense transcripts, retrotransposons, meiotic genes and genes located in subtelomeric regions. A comparison of the expression profiles revealed that Dbl2 represses the same type of genes as the HIRA histone chaperone complex. Although dbl2 deletion does not alleviate centromeric or telomeric silencing, it suppresses the silencing defect at the outer centromere caused by deletion of hip1 and slm9 genes encoding subunits of the HIRA complex. Moreover, our analyses revealed that cells lacking dbl2 show a slight increase of nucleosomes at transcription start sites and increased levels of methylated histone H3 (H3K9me2) at centromeres, subtelomeres, rDNA regions and long terminal repeats. Finally, we show that other proteins involved in homologous recombination, such as Fbh1, Rad51, Mus81 and Rad54, participate in the same gene repression pathway. © 2021 The Author(s) 2021. Published by Oxford University Press on behalf of Nucleic Acids Research.},
keywords = {Epigenetics, Transcriptomics},
pubstate = {published},
tppubtype = {article}
}
During homologous recombination, Dbl2 protein is required for localisation of Fbh1, an F-box helicase that efficiently dismantles Rad51-DNA filaments. RNA-seq analysis of dbl2Δtranscriptome showed that the dbl2 deletion results in upregulation of more than 500 loci in Schizosaccharomyces pombe. Compared with the loci with no change in expression, the misregulated loci in dbl2Δare closer to long terminal and long tandem repeats. Furthermore, the misregulated loci overlap with antisense transcripts, retrotransposons, meiotic genes and genes located in subtelomeric regions. A comparison of the expression profiles revealed that Dbl2 represses the same type of genes as the HIRA histone chaperone complex. Although dbl2 deletion does not alleviate centromeric or telomeric silencing, it suppresses the silencing defect at the outer centromere caused by deletion of hip1 and slm9 genes encoding subunits of the HIRA complex. Moreover, our analyses revealed that cells lacking dbl2 show a slight increase of nucleosomes at transcription start sites and increased levels of methylated histone H3 (H3K9me2) at centromeres, subtelomeres, rDNA regions and long terminal repeats. Finally, we show that other proteins involved in homologous recombination, such as Fbh1, Rad51, Mus81 and Rad54, participate in the same gene repression pathway. © 2021 The Author(s) 2021. Published by Oxford University Press on behalf of Nucleic Acids Research.