Abstract
Homozygous mutations in the human ATM gene lead to a pleiotropic clinical phenotype of ataxia-telangiectasia (A-T) patients and correlating cellular deficiencies in cells derived from A-T donors. Saccharomyces cerevisiae tel1 mutants lacking Tel1p, which is the closest sequence homologue to the ATM protein, share some of the cellular defects with A-T. Through genetic complementation of A-T cells with the yeast TEL1 gene, we provide evidence that Tel1p can partially compensate for ATM in suppressing hyperrecombination, radiation-induced apoptosis, and telomere shortening. Complementation appears to be independent of p53 activation. The data provided suggest that TEL1 is a functional homologue of human ATM in yeast, and they help to elucidate different cellular and biochemical pathways in human cells regulated by the ATM protein.
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Dates
Type | When |
---|---|
Created | 12 years, 1 month ago (July 2, 2013, 7:57 p.m.) |
Deposited | 3 years, 6 months ago (Feb. 26, 2022, 9:42 p.m.) |
Indexed | 1 year, 10 months ago (Oct. 7, 2023, 10:13 a.m.) |
Issued | 25 years ago (Aug. 1, 2000) |
Published | 25 years ago (Aug. 1, 2000) |
Published Print | 25 years ago (Aug. 1, 2000) |
@article{Fritz_2000, title={The YeastTEL1Gene Partially Substitutes for HumanATMin Suppressing Hyperrecombination, Radiation-Induced Apoptosis and Telomere Shortening in A-T Cells}, volume={11}, ISSN={1939-4586}, url={http://dx.doi.org/10.1091/mbc.11.8.2605}, DOI={10.1091/mbc.11.8.2605}, number={8}, journal={Molecular Biology of the Cell}, publisher={American Society for Cell Biology (ASCB)}, author={Fritz, Eberhard and Friedl, Anna A. and Zwacka, Ralf M. and Eckardt-Schupp, Friederike and Meyn, M. Stephen}, editor={Wolffe, Alan P.}, year={2000}, month=aug, pages={2605–2616} }