Mec1 and Tel1: an arresting dance of resection
نویسندگان
چکیده
منابع مشابه
Mec1 and Tel1: an arresting dance of resection.
D NA double-stranded breaks (DSBs) are a nasty form of damage for a cell, and their repair is important, complex and deeply studied. In the best case, a DSB is repaired using a homologous substrate; less optimally by error-prone direct sealing, then by sealing to another piece of DNA, or not sealed at all. The key is that cells convert a DSB into ssDNA, a substrate repairable by homology, and c...
متن کاملHigh rates of "unselected" aneuploidy and chromosome rearrangements in tel1 mec1 haploid yeast strains.
The yeast TEL1 and MEC1 genes (homologous to the mammalian ATM and ATR genes, respectively) serve partially redundant roles in the detection of DNA damage and in the regulation of telomere length. Haploid yeast tel1 mec1 strains were subcultured nonselectively for approximately 200 cell divisions. The subcultured strains had very high rates of chromosome aberrations: duplications, deletions, an...
متن کاملPch2 Prevents Mec1/Tel1-Mediated Hop1 Phosphorylation Occurring Independently of Red1 in Budding Yeast Meiosis
A prominent feature of meiosis in most sexually reproducing organisms is interhomolog recombination whereby a significant fraction of the programmed meiotic double-strand breaks are repaired using intact homologous non-sister chromatids rather than sister chromatids. Budding yeast DNA damage checkpoint kinases Mec1 and Tel1 act together with the axial element protein Red1 to promote interhomolo...
متن کاملPhosphorylation of the Axial Element Protein Hop1 by Mec1/Tel1 Ensures Meiotic Interhomolog Recombination
An essential feature of meiosis is interhomolog recombination whereby a significant fraction of the programmed meiotic double-strand breaks (DSBs) is repaired using an intact homologous non-sister chromatid rather than a sister. Involvement of Mec1 and Tel1, the budding yeast homologs of the mammalian ATR and ATM kinases, in meiotic interhomlog bias has been implicated, but the mechanism remain...
متن کاملMec1/Tel1 Phosphorylation of the INO80 Chromatin Remodeling Complex Influences DNA Damage Checkpoint Responses
The yeast Mec1/Tel1 kinases, ATM/ATR in mammals, coordinate the DNA damage response by phosphorylating proteins involved in DNA repair and checkpoint pathways. Recently, ATP-dependent chromatin remodeling complexes, such as the INO80 complex, have also been implicated in DNA damage responses, although regulatory mechanisms that direct their function remain unknown. Here, we show that the Ies4 s...
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ژورنال
عنوان ژورنال: The EMBO Journal
سال: 2014
ISSN: 0261-4189
DOI: 10.1002/embj.201387440