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

The mitogen-activated protein kinase cascade of the Saccharomyces cerevisiae pheromone response pathway is organized on the Ste5 protein, which binds each of the kinases of the cascade prior to signaling. In this study, a structure–function analysis of Ste5 deletion mutants uncovered new functional domains of the Ste5 protein and revealed that Ste5 dimerizes during the course of normal signal transduction. Dimerization, mediated by two regions in the N-terminal half of Ste5, was first suggested by intragenic complementation between pairs of nonfunctional Ste5 mutants and was confirmed by using the two-hybrid system. Coimmunoprecipitation of differently tagged forms of Ste5 from cells in which the pathway has been activated by Ste5 overexpression further confirmed dimerization. A precise correlation between the biological activity of various Ste5 fragments and dimerization suggests that dimerization is essential for Ste5 function.

Bibliography

Yablonski, D., Marbach, I., & Levitzki, A. (1996). Dimerization of Ste5, a mitogen-activated protein kinase cascade scaffold protein, is required for signal transduction. Proceedings of the National Academy of Sciences, 93(24), 13864–13869.

Authors 3
  1. Deborah Yablonski (first)
  2. Irit Marbach (additional)
  3. Alexander Levitzki (additional)
References 38 Referenced 72
  1. 10.1016/0959-437X(94)90095-7
  2. 10.1016/0092-8674(95)90402-6
  3. 10.1016/S0959-437X(95)90050-0
  4. 10.1146/annurev.ge.27.120193.001051
  5. G F Sprague, J W Thorner The Molecular and Cellular Biology of the Yeast Saccharomyces: Gene Expression, eds E W Jones, J R Pringle, J R Broach (Cold Spring Harbor Lab. Press, Plainview, NY) 2, 657–744 (1992). / The Molecular and Cellular Biology of the Yeast Saccharomyces: Gene Expression by Sprague G F (1992)
  6. 10.1016/0092-8674(94)90579-7
  7. 10.1073/pnas.91.16.7762
  8. 10.1093/genetics/138.3.609
  9. 10.1128/MCB.15.12.6545
  10. 10.1073/pnas.90.12.5474
  11. 10.1128/mcb.13.4.2050-2060.1993
  12. 10.1007/BF00284675
  13. P Bartel, C-T Chien, R Sternglanz, S Fields BioTechniques 14, 920–924 (1993). / BioTechniques by Bartel P (1993)
  14. 10.1016/0076-6879(91)94022-5
  15. 10.1093/genetics/116.4.541
  16. 10.1073/pnas.88.21.9392
  17. 10.1093/nar/20.6.1425
  18. 10.1016/0076-6879(91)94008-Z
  19. 10.1016/0092-8674(87)90015-8
  20. 10.1073/pnas.88.21.9578
  21. 10.1016/0378-1119(92)90454-W
  22. 10.1016/0378-1119(94)90204-6
  23. 10.1093/nar/20.14.3790
  24. 10.1093/genetics/122.1.19
  25. 10.1101/gad.8.3.313
  26. E Harlow, D Lane Antibodies: A Laboratory Manual (Cold Spring Harbor Lab. Press, Plainview, NY, 1988). / Antibodies: A Laboratory Manual by Harlow E (1988)
  27. 10.1016/S0021-9258(18)42367-8
  28. 10.1073/pnas.78.4.2199
  29. 10.1128/mcb.14.2.1054-1065.1994
  30. 10.1101/gad.4.4.492
  31. 10.1126/science.7667635
  32. 10.1038/nsb0694-388
  33. 10.1016/0958-1669(93)90008-K
  34. 10.1016/0092-8674(94)90191-0
  35. 10.1073/pnas.91.22.10655
  36. 10.1038/340245a0
  37. 10.1126/science.270.5239.1210
  38. 10.1128/MCB.16.7.3637
Dates
Type When
Created 23 years ago (July 26, 2002, 10:35 a.m.)
Deposited 3 years, 4 months ago (April 13, 2022, 2:57 p.m.)
Indexed 1 month, 3 weeks ago (July 2, 2025, 2:45 p.m.)
Issued 28 years, 8 months ago (Nov. 26, 1996)
Published 28 years, 8 months ago (Nov. 26, 1996)
Published Online 28 years, 8 months ago (Nov. 26, 1996)
Published Print 28 years, 8 months ago (Nov. 26, 1996)
Funders 0

None

@article{Yablonski_1996, title={Dimerization of Ste5, a mitogen-activated protein kinase cascade scaffold protein, is required for signal transduction}, volume={93}, ISSN={1091-6490}, url={http://dx.doi.org/10.1073/pnas.93.24.13864}, DOI={10.1073/pnas.93.24.13864}, number={24}, journal={Proceedings of the National Academy of Sciences}, publisher={Proceedings of the National Academy of Sciences}, author={Yablonski, Deborah and Marbach, Irit and Levitzki, Alexander}, year={1996}, month=nov, pages={13864–13869} }