2013
DOI: 10.1016/j.dnarep.2013.02.004
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Tid1/Rdh54 translocase is phosphorylated through a Mec1- and Rad53-dependent manner in the presence of DSB lesions in budding yeast

Abstract: Saccharomyces cerevisiae cells with a single double-strand break (DSB) activate the ATR/Mec1-dependent checkpoint response as a consequence of extensive ssDNA accumulation. The recombination factor Tid1/Rdh54, a member of the Swi2-like family proteins, has an ATPase activity and may contribute to the remodeling of nucleosomes on DNA. Tid1 dislocates Rad51 recombinase from dsDNA, can unwind and supercoil DNA filaments, and has been implicated in checkpoint adaptation from a G2/M arrest induced by an unrepaired … Show more

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Cited by 17 publications
(19 citation statements)
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“…In another example, which supports a key role for Mec1 in the control of HR, phosphorylation of multiple S/T‐Q residues in Sae2, a pro‐resection factor homologous to human CtIP, contributes to Mec1‐mediated GCR suppression (Liang et al , ). Furthermore, Mec1 phosphorylates the strand exchange factor Rad55, and Rad53 promotes the phosphorylation and DNA binding of the Tid1/Rdh54 translocase (Fig ; Bashkirov et al , ; Ferrari et al , ; Herzberg et al , ). Mec1 also phosphorylates Rad51 at serine 192, likely supporting its ATPase activity and capacity for strand invasion (Fig ; Flott et al , ).…”
Section: Introductionmentioning
confidence: 99%
“…In another example, which supports a key role for Mec1 in the control of HR, phosphorylation of multiple S/T‐Q residues in Sae2, a pro‐resection factor homologous to human CtIP, contributes to Mec1‐mediated GCR suppression (Liang et al , ). Furthermore, Mec1 phosphorylates the strand exchange factor Rad55, and Rad53 promotes the phosphorylation and DNA binding of the Tid1/Rdh54 translocase (Fig ; Bashkirov et al , ; Ferrari et al , ; Herzberg et al , ). Mec1 also phosphorylates Rad51 at serine 192, likely supporting its ATPase activity and capacity for strand invasion (Fig ; Flott et al , ).…”
Section: Introductionmentioning
confidence: 99%
“…So far, only Rdh54 has been excluded as a likely functional target of the MCN (Niu et al 2009). Notably, Rdh54 phosphorylation during vegetative growth is implicated in checkpoint adaptation (Ferrari et al 2013).…”
Section: Suppression Of Intersister Recombinationmentioning
confidence: 99%
“…In line with this, Tid1 is recruited to DSBs within 1 hr of break-induction in a Rad51-dependent manner (Kwon et al, 2008). Tid1 is also phosphorylated in response to DNA damage in somatic cells (Ferrari et al, 2013), but it remains unclear how phosphorylation of Tid1 alters Tid1's interaction with Rad51 or its translocation activity. Phosphorylation of Rad54, for instance, suppresses interaction between Rad54 and Rad51 during meiotic recombination (Niu et al, 2009).…”
Section: Model: Tid1 As a Roadblock To Rad54mentioning
confidence: 89%
“…Tid1 translocation on dsDNA also prevents non-recombinogenic binding of Rad51 to dsDNA (Shah et al, 2010). Tid1's ATPase activity is required to turn off Rad53 activation and for checkpoint adaptation (Ferrari et al, 2013). Thus, a secondary role of Tid1 and its ATPase activity downstream in mitotic repair remains yet to be delineated.…”
Section: Physiological Relevance Of D-loop Modulation By Tid1mentioning
confidence: 99%
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