Genetics, Vol 137, 945-956, Copyright © 1994


INVESTIGATIONS

Characterization of Mutations That Suppress the Temperature-Sensitive Growth of the hpr1{Delta} Mutant of Saccharomyces cerevisiae

H. Y. Fan and H. L. Klein
Department of Biochemistry and Kaplan Cancer Center, New York University Medical Center, New York, New York 10016

The hpr1{Delta}3 mutant of Saccharomyces cerevisiae is temperature-sensitive for growth at 37{deg} and has a 1000-fold increase in deletion of tandem direct repeats. The hyperrecombination phenotype, measured by deletion of a leu2 direct repeat, is partially dependent on the RAD1 and RAD52 gene products, but mutations in these RAD genes do not suppress the temperature-sensitive growth phenotype. Extragenic suppressors of the temperature-sensitive growth have been isolated and characterized. The 14 soh (suppressor of hpr1) mutants recovered represent eight complementation groups, with both dominant and recessive soh alleles. Some of the soh mutants suppress hpr1 hyperrecombination and are distinct from the rad mutants that suppress hpr1 hyperrecombination. Comparisons between the SOH genes and the RAD genes are presented as well as the requirement of RAD genes for the Soh phenotypes. Double soh mutants have been analyzed and reveal three classes of interactions: epistatic suppression of hpr1 hyperrecombination, synergistic suppression of hpr1 hyperrecombination and synthetic lethality. The SOH1 gene has been cloned and sequenced. The null allele is 10-fold increased for recombination as measured by deletion of a leu2 direct repeat.


This article has been cited by other articles:


Home page
Nucleic Acids ResHome page
H.-M. Bourbon
Comparative genomics supports a deep evolutionary origin for the large, four-module transcriptional mediator complex
Nucleic Acids Res., July 1, 2008; 36(12): 3993 - 4008.
[Abstract] [Full Text] [PDF]


Home page
GeneticsHome page
K. M. Nyswaner, M. A. Checkley, M. Yi, R. M. Stephens, and D. J. Garfinkel
Chromatin-Associated Genes Protect the Yeast Genome From Ty1 Insertional Mutagenesis
Genetics, January 1, 2008; 178(1): 197 - 214.
[Abstract] [Full Text] [PDF]


Home page
GeneticsHome page
F. Malagon, M. L. Kireeva, B. K. Shafer, L. Lubkowska, M. Kashlev, and J. N. Strathern
Mutations in the Saccharomyces cerevisiae RPB1 Gene Conferring Hypersensitivity to 6-Azauracil
Genetics, April 1, 2006; 172(4): 2201 - 2209.
[Abstract] [Full Text] [PDF]


Home page
J. Biol. Chem.Home page
T. Linder and C. M. Gustafsson
The Soh1/MED31 Protein Is an Ancient Component of Schizosaccharomyces pombe and Saccharomyces cerevisiae Mediator
J. Biol. Chem., November 19, 2004; 279(47): 49455 - 49459.
[Abstract] [Full Text] [PDF]


Home page
GeneticsHome page
F. Malagon, A. H. Tong, B. K. Shafer, and J. N. Strathern
Genetic Interactions of DST1 in Saccharomyces cerevisiae Suggest a Role of TFIIS in the Initiation-Elongation Transition
Genetics, March 1, 2004; 166(3): 1215 - 1227.
[Abstract] [Full Text] [PDF]


Home page
Mol. Cell. Biol.Home page
N. J. Krogan, M. Kim, A. Tong, A. Golshani, G. Cagney, V. Canadien, D. P. Richards, B. K. Beattie, A. Emili, C. Boone, et al.
Methylation of Histone H3 by Set2 in Saccharomyces cerevisiae Is Linked to Transcriptional Elongation by RNA Polymerase II
Mol. Cell. Biol., June 15, 2003; 23(12): 4207 - 4218.
[Abstract] [Full Text] [PDF]


Home page
Nucleic Acids ResHome page
J. Schmuckli-Maurer, M. Rolfsmeier, H. Nguyen, and W.-D. Heyer
Genome instability in rad54 mutants of Saccharomyces cerevisiae
Nucleic Acids Res., February 1, 2003; 31(3): 1013 - 1023.
[Abstract] [Full Text] [PDF]


Home page
Mol. Cell. Biol.Home page
R. J. Merker and H. L. Klein
Role of Transcription in Plasmid Maintenance in the hpr1{Delta} Mutant of Saccharomyces cerevisiae
Mol. Cell. Biol., December 15, 2002; 22(24): 8763 - 8773.
[Abstract] [Full Text] [PDF]


Home page
Mol. Cell. Biol.Home page
R. J. Merker and H. L. Klein
hpr1{Delta} Affects Ribosomal DNA Recombination and Cell Life Span in Saccharomyces cerevisiae
Mol. Cell. Biol., January 15, 2002; 22(2): 421 - 429.
[Abstract] [Full Text] [PDF]


Home page
Mol. Cell. Biol.Home page
S. Chavez, M. Garcia-Rubio, F. Prado, and A. Aguilera
Hpr1 Is Preferentially Required for Transcription of Either Long or G+C-Rich DNA Sequences in Saccharomyces cerevisiae
Mol. Cell. Biol., October 15, 2001; 21(20): 7054 - 7064.
[Abstract] [Full Text] [PDF]


Home page
Mol. Cell. Biol.Home page
H.-Y. Fan, R. J. Merker, and H. L. Klein
High-Copy-Number Expression of Sub2p, a Member of the RNA Helicase Superfamily, Suppresses hpr1-Mediated Genomic Instability
Mol. Cell. Biol., August 15, 2001; 21(16): 5459 - 5470.
[Abstract] [Full Text] [PDF]


Home page
GeneticsHome page
M. Gallardo and A. Aguilera
A New Hyperrecombination Mutation Identifies a Novel Yeast Gene, THP1, Connecting Transcription Elongation With Mitotic Recombination
Genetics, January 1, 2001; 157(1): 79 - 89.
[Abstract] [Full Text]


Home page
Mol. Cell. Biol.Home page
R. Schneiter, C. E. Guerra, M. Lampl, G. Gogg, S. D. Kohlwein, and H. L. Klein
The Saccharomyces cerevisiae Hyperrecombination Mutant hpr1Delta Is Synthetically Lethal with Two Conditional Alleles of the Acetyl Coenzyme A Carboxylase Gene and Causes a Defect in Nuclear Export of Polyadenylated RNA
Mol. Cell. Biol., May 1, 1999; 19(5): 3415 - 3422.
[Abstract] [Full Text] [PDF]


Home page
Mol. Cell. Biol.Home page
M. Chang, D. French-Cornay, H.-y. Fan, H. Klein, C. L. Denis, and J. A. Jaehning
A Complex Containing RNA Polymerase II, Paf1p, Cdc73p, Hpr1p, and Ccr4p Plays a Role in Protein Kinase C Signaling
Mol. Cell. Biol., February 1, 1999; 19(2): 1056 - 1067.
[Abstract] [Full Text] [PDF]


Home page
Microbiol. Mol. Biol. Rev.Home page
M. Hampsey
Molecular Genetics of the RNA Polymerase II General Transcriptional Machinery
Microbiol. Mol. Biol. Rev., June 1, 1998; 62(2): 465 - 503.
[Abstract] [Full Text] [PDF]