| http://purl.uniprot.org/citations/33715066 | http://www.w3.org/1999/02/22-rdf-syntax-ns#type | http://purl.uniprot.org/core/Journal_Citation |
| http://purl.uniprot.org/citations/33715066 | http://www.w3.org/2000/01/rdf-schema#comment | "As cells replicate their DNA, there is a need to synthesize new histones with which to wrap it. Newly synthesized H3 histones that are incorporated into the assembling chromatin behind the replication fork are acetylated at lysine 56. The acetylation is removed by two deacetylases, Hst3 and Hst4. This process is tightly regulated and any perturbation leads to genomic instability and replicative stress. We recently showed that Dun1, a kinase implicated mainly in the regulation of dNTPs, is vital in cells with hyper-acetylation, to counteract Rad53's inhibition on late-firing origins of replication. Our work showed that ∆hst3 ∆hst4 cells depend on late origin firing for survival, and are unable to prevent Rad53's inhibition when Dun1 is inactive. Thus, our work describes a role for Dun1 that is independent on its known function as a regulator of dNTP levels. Here we show that Mrc1 (Claspin in mammals), a protein that moves with the replicating fork and participates in both replication and checkpoint functions, plays also an essential role in the absence of H3K56Ac deacetylation. The sum of the results shown here and in our recent publication suggests that dormant origins are also utilized in these cells, making Mrc1, which regulates firing from these origins, also essential when histone H3 is hyper-acetylated. Thus, cells suffering from hyper-acetylation of H3K56 experience replication stress caused by a combination of prone-to-collapse forks and limited replication tracts. This combination makes both Dun1 and Mrc1, each acting on different targets, essential for viability."xsd:string |
| http://purl.uniprot.org/citations/33715066 | http://purl.org/dc/terms/identifier | "doi:10.1007/s00294-021-01175-2"xsd:string |
| http://purl.uniprot.org/citations/33715066 | http://purl.uniprot.org/core/author | "Kupiec M."xsd:string |
| http://purl.uniprot.org/citations/33715066 | http://purl.uniprot.org/core/author | "Gershon L."xsd:string |
| http://purl.uniprot.org/citations/33715066 | http://purl.uniprot.org/core/date | "2021"xsd:gYear |
| http://purl.uniprot.org/citations/33715066 | http://purl.uniprot.org/core/name | "Curr Genet"xsd:string |
| http://purl.uniprot.org/citations/33715066 | http://purl.uniprot.org/core/pages | "501-510"xsd:string |
| http://purl.uniprot.org/citations/33715066 | http://purl.uniprot.org/core/title | "Histones on fire: the effect of Dun1 and Mrc1 on origin firing and replication of hyper-acetylated genomes."xsd:string |
| http://purl.uniprot.org/citations/33715066 | http://purl.uniprot.org/core/volume | "67"xsd:string |
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