Journal
GENES & DEVELOPMENT
Volume 17, Issue 16, Pages 1957-1962Publisher
COLD SPRING HARBOR LAB PRESS, PUBLICATIONS DEPT
DOI: 10.1101/gad.1099003
Keywords
ATM; tell; Xrs2; double-strand break
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In budding yeast, TEL1 encodes a protein closely related to ATM. Xrs2 is an Nbs1 homolog and forms a complex with Mre11 and Rad50. We show here that Tell associates with double-strand breaks (DSBs) through a mechanism dependent on the C terminus of Xrs2. Although Xrs2 is required for the DNA degradation at DSBs, the C-terminal Xrs2 truncation does not affect the degradation. Tell and the C terminus of Xrs2 are similarly involved in cell survival and Rad53 phosphorylation after DNA damage. Our findings suggest that the Tell association with DNA lesions is required for the activation of DNA damage responses.
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