MCB
Home Help [Feedback] [For Subscribers] [Archive] [Search] [Contents]
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrowReprints and Permissions
Right arrow Copyright Information
Right arrow Books from ASM Press
Right arrow MicrobeWorld
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Basrai, M. A.
Right arrow Articles by Hieter, P.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Basrai, M. A.
Right arrow Articles by Hieter, P.

Molecular and Cellular Biology, October 1999, p. 7041-7049, Vol. 19, No. 10
0270-7306/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.

NORF5/HUG1 Is a Component of the MEC1-Mediated Checkpoint Response to DNA Damage and Replication Arrest in Saccharomyces cerevisiae

Munira A. Basrai,1,* Victor E. Velculescu,2 Kenneth W. Kinzler,2 and Philip Hieter3

Department of Molecular Biology & Genetics, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21205,1 Oncology Center, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21231,2 and Center for Molecular Medicine and Therapeutics, University of British Columbia, Vancouver, British Columbia V5Z 4H4, Canada3

Received 9 March 1999/Returned for modification 28 April 1999/Accepted 6 July 1999

Analysis of global gene expression in Saccharomyces cerevisiae by the serial analysis of gene expression technique has permitted the identification of at least 302 previously unidentified transcripts from nonannotated open reading frames (NORFs). Transcription of one of these, NORF5/HUG1 (hydroxyurea and UV and gamma radiation induced), is induced by DNA damage, and this induction requires MEC1, a homolog of the ataxia telangiectasia mutated (ATM) gene. DNA damage-specific induction of HUG1, which is independent of the cell cycle stage, is due to the alleviation of repression by the Crt1p-Ssn6p-Tup1p complex. Overexpression of HUG1 is lethal in combination with a mec1 mutation in the presence of DNA damage or replication arrest, whereas a deletion of HUG1 rescues the lethality due to a mec1 null allele. HUG1 is the first example of a NORF with important biological functional properties and defines a novel component of the MEC1 checkpoint pathway.

* Corresponding author. Present address: Department of Genetics, Medicine Branch, Division of Clinical Sciences, National Cancer Institute, Bethesda, MD 20889. Phone: (301) 402-2552. Fax: (301) 480-0380. E-mail: basraim{at}nih.gov.

Molecular and Cellular Biology, October 1999, p. 7041-7049, Vol. 19, No. 10
0270-7306/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.


This article has been cited by other articles:



Home Help [Feedback] [For Subscribers] [Archive] [Search] [Contents]
J. Bacteriol. J. Virol. Eukaryot. Cell
Microbiol. Mol. Biol. Rev. Clin. Vaccine Immunol. All ASM Journals

Copyright © 1999 by the American Society for Microbiology. All rights reserved.