Genetics, Vol 136, 465-474, Copyright © 1994


INVESTIGATIONS

The Yak1 Protein Kinase of Saccharomyces cerevisiae Moderates Thermotolerance and Inhibits Growth by an Sch9 Protein Kinase-Independent Mechanism

A. D. Hartley, M. P. Ward and S. Garrett
Section of Cell Growth, Regulation and Oncogenesis, Duke University Medical Center, Durham, North Carolina 27710

The growth defect associated with the loss of yeast A kinase activity can be alleviated by the overexpression or deletion of two other kinases, Sch9 and Yak1, respectively. Using tests of epistasis, we have shown that Sch9 and Yak1 define separate signaling pathways and must, therefore, suppress the A kinase defect by different mechanisms. Nevertheless, the Yak1 kinase appears to regulate cellular processes that are under A kinase control. For example, acquisition of heat resistance is correlated with Yak1 kinase activity, such that YAK1-overexpressing cells are over 200-fold more resistant than isogenic yak1 strains. These results, for the first time, associate a phenotype, other than suppression of the A kinase growth defect, with the loss of Yak1 activity and argue a broader role for the Yak1 kinase in cell growth.


This article has been cited by other articles:


Home page
Mol. Biol. CellHome page
S. Goyard, P. Knechtle, M. Chauvel, A. Mallet, M.-C. Prevost, C. Proux, J.-Y. Coppee, P. Schwartz, F. Dromer, H. Park, et al.
The Yak1 Kinase Is Involved in the Initiation and Maintenance of Hyphal Growth in Candida albicans
Mol. Biol. Cell, May 1, 2008; 19(5): 2251 - 2266.
[Abstract] [Full Text] [PDF]


Home page
Eukaryot CellHome page
M. Ren, A. Santhanam, P. Lee, A. Caplan, and S. Garrett
Alteration of the Protein Kinase Binding Domain Enhances Function of the Saccharomyces cerevisiae Molecular Chaperone Cdc37
Eukaryot. Cell, August 1, 2007; 6(8): 1363 - 1372.
[Abstract] [Full Text] [PDF]


Home page
J. Cell Sci.Home page
M. Batlle, A. Lu, D. A. Green, Y. Xue, and J. P. Hirsch
Krh1p and Krh2p act downstream of the Gpa2p G{alpha} subunit to negatively regulate haploid invasive growth
J. Cell Sci., February 15, 2003; 116(4): 701 - 710.
[Abstract] [Full Text] [PDF]


Home page
J. Biol. Chem.Home page
J. Mao, P. Maye, P. Kogerman, F. J. Tejedor, R. Toftgard, W. Xie, G. Wu, and D. Wu
Regulation of Gli1 Transcriptional Activity in the Nucleus by Dyrk1
J. Biol. Chem., September 13, 2002; 277(38): 35156 - 35161.
[Abstract] [Full Text] [PDF]


Home page
Mol. Biol. CellHome page
A. Taminato, R. Bagattini, R. Gorjao, G. Chen, A. Kuspa, and G. M. Souza
Role for YakA, cAMP, and Protein Kinase A in Regulation of Stress Responses of Dictyostelium discoideum Cells
Mol. Biol. Cell, July 1, 2002; 13(7): 2266 - 2275.
[Abstract] [Full Text] [PDF]


Home page
DevelopmentHome page
G. Souza, A. da Silva, and A Kuspa
Starvation promotes Dictyostelium development by relieving PufA inhibition of PKA translation through the YakA kinase pathway
Development, January 6, 1999; 126(14): 3263 - 3274.
[Abstract] [PDF]


Home page
Mol. Biol. CellHome page
S. L. Jaspersen, J. F. Charles, R. L. Tinker-Kulberg, and D. O. Morgan
A Late Mitotic Regulatory Network Controlling Cyclin Destruction in Saccharomyces cerevisiae
Mol. Biol. Cell, October 1, 1998; 9(10): 2803 - 2817.
[Abstract] [Full Text]


Home page
Genes Dev.Home page
A. Reinders, N. Bürckert, T. Boller, A. Wiemken, and C. De Virgilio
Saccharomyces cerevisiae cAMP-dependent protein kinase controls entry into stationary phase through the Rim15p protein kinase
Genes & Dev., September 15, 1998; 12(18): 2943 - 2955.
[Abstract] [Full Text]


Home page
DevelopmentHome page
G. Souza, S Lu, and A Kuspa
YakA, a protein kinase required for the transition from growth to development in Dictyostelium
Development, January 6, 1998; 125(12): 2291 - 2302.
[Abstract] [PDF]


Home page
J. Biol. Chem.Home page
S. van Es, K. E. Weening, and P. N. Devreotes
The Protein Kinase YakA Regulates G-protein-linked Signaling Responses during Growth and Development of Dictyostelium
J. Biol. Chem., August 10, 2001; 276(33): 30761 - 30765.
[Abstract] [Full Text] [PDF]