Crossref journal-article
Proceedings of the National Academy of Sciences
Proceedings of the National Academy of Sciences (341)
Abstract

The human neurodegenerative and cancer predisposition condition ataxia-telangiectasia is characterized at the cellular level by radiosensitivity, chromosomal instability, and impaired induction of ionizing radiation-induced cell cycle checkpoint controls. Recent work has revealed that the gene defective in ataxia-telangiectasia, termed ATM , encodes an ≈350-kDa polypeptide, ATM, that is a member of the phosphatidylinositol 3-kinase family. We show that ATM binds DNA and exploit this to purify ATM to near homogeneity. Atomic force microscopy reveals that ATM exists in two populations, with sizes consistent with monomeric and tetrameric states. Atomic force microscopy analyses also show that ATM binds preferentially to DNA ends. This property is similar to that displayed by the DNA-dependent protein kinase catalytic subunit, a phosphatidylinositol 3-kinase family member that functions in DNA damage detection in conjunction with the DNA end-binding protein Ku. Furthermore, purified ATM contains a kinase activity that phosphorylates serine-15 of p53 in a DNA-stimulated manner. These results provide a biochemical assay system for ATM, support genetic data indicating distinct roles for DNA-dependent protein kinase and ATM, and suggest how ATM may signal the presence of DNA damage to p53 and other downstream effectors.

Bibliography

Smith, G. C. M., Cary, R. B., Lakin, N. D., Hann, B. C., Teo, S.-H., Chen, D. J., & Jackson, S. P. (1999). Purification and DNA binding properties of the ataxia-telangiectasia gene product ATM. Proceedings of the National Academy of Sciences, 96(20), 11134–11139.

Authors 7
  1. Graeme C. M. Smith (first)
  2. Robert B. Cary (additional)
  3. Nicholas D. Lakin (additional)
  4. Byron C. Hann (additional)
  5. Soo-Hwang Teo (additional)
  6. David J. Chen (additional)
  7. Stephen P. Jackson (additional)
References 38 Referenced 133
  1. 10.1016/S0959-437X(97)80125-6
  2. 10.1146/annurev.immunol.15.1.177
  3. 10.1093/hmg/7.10.1555
  4. 10.1016/0092-8674(92)90593-2
  5. K K Khanna, M F Lavin Oncogene 12, 3307–3312 (1993). / Oncogene by Khanna K K (1993)
  6. 10.1101/gad.11.24.3471
  7. 10.1126/science.7792600
  8. 10.1093/hmg/4.11.2025
  9. 10.1038/42648
  10. 10.1126/science.270.5233.50
  11. 10.1016/0092-8674(95)90463-8
  12. 10.1016/0092-8674(95)90482-4
  13. S P Jackson Cancer Surv 28, 261–279 (1996). / Cancer Surv by Jackson S P (1996)
  14. 10.1016/S0021-9258(18)82219-0
  15. 10.1016/0092-8674(93)90057-W
  16. 10.1093/emboj/16.16.5098
  17. 10.1073/pnas.95.2.525
  18. 10.1016/S0959-437X(97)80116-5
  19. 10.1016/S0968-0004(98)01284-5
  20. 10.1101/gad.13.8.916
  21. 10.1074/jbc.271.52.33693
  22. N D Lakin, P Weber, T Stankovic, S T Rottinghaus, A M Taylor, S P Jackson Oncogene 13, 2707–2716 (1996). / Oncogene by Lakin N D (1996)
  23. 10.1073/pnas.94.5.1840
  24. 10.1038/sj.onc.1201037
  25. 10.1126/science.281.5383.1674
  26. 10.1126/science.281.5383.1677
  27. 10.1038/3882
  28. 10.1038/sj.onc.1202973
  29. 10.1128/MCB.19.9.6076
  30. 10.1073/pnas.94.9.4267
  31. 10.1006/jmbi.1998.2212
  32. 10.1016/0092-8674(92)90562-Q
  33. 10.1016/S0959-440X(05)80107-1
  34. J N Sarkaria, R S Tibbetts, E C Busby, A P Kennedy, D E Hill, R T Abraham Cancer Res 58, 4375–4382 (1998). / Cancer Res by Sarkaria J N (1998)
  35. R J Izzard, S P Jackson, G C M Smith Cancer Res 59, 2581–2586 (1999). / Cancer Res by Izzard R J (1999)
  36. 10.1073/pnas.91.15.6904
  37. 10.1016/S0021-9258(18)53216-6
  38. 10.1091/mbc.9.9.2361
Dates
Type When
Created 23 years, 1 month ago (July 26, 2002, 10:41 a.m.)
Deposited 3 years, 4 months ago (April 13, 2022, 3:51 p.m.)
Indexed 1 year, 2 months ago (June 24, 2024, 2:33 p.m.)
Issued 25 years, 11 months ago (Sept. 28, 1999)
Published 25 years, 11 months ago (Sept. 28, 1999)
Published Online 25 years, 11 months ago (Sept. 28, 1999)
Published Print 25 years, 11 months ago (Sept. 28, 1999)
Funders 0

None

@article{Smith_1999, title={Purification and DNA binding properties of the ataxia-telangiectasia gene product ATM}, volume={96}, ISSN={1091-6490}, url={http://dx.doi.org/10.1073/pnas.96.20.11134}, DOI={10.1073/pnas.96.20.11134}, number={20}, journal={Proceedings of the National Academy of Sciences}, publisher={Proceedings of the National Academy of Sciences}, author={Smith, Graeme C. M. and Cary, Robert B. and Lakin, Nicholas D. and Hann, Byron C. and Teo, Soo-Hwang and Chen, David J. and Jackson, Stephen P.}, year={1999}, month=sep, pages={11134–11139} }