Monitoring the Proteostasis Function of the Saccharomyces cerevisiae Metacaspase Yca1

  • Amit Shrestha
  • Robin E. C. Lee
  • Lynn A. Megeney
Part of the Methods in Molecular Biology book series (MIMB, volume 1133)


The functional versatility of metacaspase proteases has been established by reports of their involvement in non-apoptotic cellular processes, in addition to their canonical role in apoptosis/programmed cell death. While the budding yeast metacaspase Yca1 has been well characterized for its role in cell death regulation, more recent examinations suggest that the protease may be involved in key processes that increase survival and fitness. More specifically, examinations suggest that Yca1 is central to maintaining cellular proteostasis as it interacts with major components involved in protein biosynthesis and functions to limit aggregate deposition. Here, we describe the methods utilized to analyze the role Yca1 in proteostasis.

Key words

Aggregates Filtration Heat stress Immunoprecipitation Metacaspase Proteostasis Protocols Vacuole morphology 


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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • Amit Shrestha
    • 1
    • 2
  • Robin E. C. Lee
    • 3
    • 4
    • 5
  • Lynn A. Megeney
    • 1
    • 2
  1. 1.Regenerative Medicine Program, Sprott Centre for Stem Cell ResearchOttawa Hospital Research Institute, The Ottawa HospitalOttawaCanada
  2. 2.Department of Cellular and Molecular MedicineUniversity of OttawaOttawaCanada
  3. 3.Department of Cancer BiologyDana Farber Cancer InstituteBostonUSA
  4. 4.Center for Cancer Systems BiologyDana Farber Cancer InstituteBostonUSA
  5. 5.Department of GeneticsHarvard Medical SchoolBostonUSA

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