TY - JOUR AU - AB - THE JOURNAL OF BIOLOGICAL CHEMISTRY Vol. 271, No. 34, Issue of August 23, pp. 20486–20493, 1996 © 1996 by The American Society for Biochemistry and Molecular Biology, Inc. Printed in U.S.A. Defect in Multiple Cell Cycle Checkpoints in Ataxia-Telangiectasia Postirradiation* (Received for publication, October 26, 1995, and in revised form, April 18, 1996) Heather Beamish‡, Richard Williams‡§, Philip Chen‡, and Martin F. Lavin‡§ From the ‡Queensland Cancer Fund Research Unit, Queensland Institute of Medical Research, Bancroft Centre, 300 Herston Road, Brisbane, Queensland 4029, Australia and the §Department of Surgery, University of Queensland, Royal Brisbane Hospital, Herston, Queensland 4029, Australia sis (15–16), and at longer times postirradiation they are irre- The recent description of a novel gene (ATM) mutated in ataxia-telangiectasia (A-T), with homologies to genes versibly delayed in G phase (9, 17, 18). Kastan et al. (8) encoding proteins involved in both G /S and G /M check- showed that A-T cells lacked the radiation induction of p53 1 2 point control, points to a common defect in cell cycle observed in normal cells. Khanna and Lavin (19) subsequently control in A-T operating through the cyclin-dependent revealed that the p53 response postirradiation is reduced kinases. In this report we TI - Defect in Multiple Cell Cycle Checkpoints in Ataxia-Telangiectasia Postirradiation JF - Journal of Biological Chemistry DO - 10.1074/jbc.271.34.20486 DA - 1996-08-01 UR - https://www.deepdyve.com/lp/unpaywall/defect-in-multiple-cell-cycle-checkpoints-in-ataxia-telangiectasia-BrlyxDOAeJ DP - DeepDyve ER -