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    Rapid depletion of budding yeast proteins by fusion to a heat-inducible degron.

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    Authors
    Sanchez-Diaz, Alberto
    Kanemaki, Masato
    Marchesi, Vanessa
    Labib, Karim
    Affiliation
    Cancer Research U.K., Paterson Institute for Cancer Research, Christie Hospital, Manchester, UK.
    Issue Date
    2004-03-09
    
    Metadata
    Show full item record
    Abstract
    One effective way to study the biological function of a protein in vivo is to inactivate it and see what happens to the cell. For proteins that are dispensable for cell viability, the corresponding gene can simply be deleted from its chromosomal locus. The study of essential proteins is more challenging, however, because the function of the protein must be inactivated conditionally. Here, we describe a method that allows the target protein to be depleted rapidly and conditionally, so that the immediate effects on the cell can be examined. The chromosomal locus of a budding yeast gene is modified so that a "heat-inducible degron cassette" is added to the N terminus of the encoded protein, causing it to be degraded by a specific ubiquitin-mediated pathway when cells are shifted from 24 degrees to 37 degrees C. Degradation requires recognition of the degron cassette by the evolutionarily conserved Ubr1 protein, which is associated with a ubiquitin-conjugating enzyme. To promote rapid and conditional depletion of the target protein, we use a yeast strain in which expression of the UBR1 gene can be either repressed or strongly induced. Degron strains are constructed by a simple "one-step" approach using the polymerase chain reaction.
    Citation
    Rapid depletion of budding yeast proteins by fusion to a heat-inducible degron. 2004, 2004 (223):PL8 Sci. STKE
    Journal
    Science's STKE
    URI
    http://hdl.handle.net/10541/84408
    DOI
    10.1126/stke.2232004pl8
    PubMed ID
    15010550
    Language
    en
    ISSN
    1525-8882
    ae974a485f413a2113503eed53cd6c53
    10.1126/stke.2232004pl8
    Scopus Count
    Collections
    All Paterson Institute for Cancer Research

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