SGD Paper 
Page AM, et al. (2005) In vivo characterization of the nonessential budding yeast anaphase-promoting complex/cyclosome components Swm1p, Mnd2p and Apc9p. Genetics 170(3):1045-62
Abstract: We have examined the in vivo requirement of two recently identified non-essential components of the budding yeast Anaphase-Promoting Complex, Swm1p and Mnd2p, as well as that of previously identified subunit Apc9p. swm1Delta mutants exhibit synthetic lethality or conditional synthetic lethality with other APC/C subunits and regulators, whereas mnd2Delta mutants are less sensitive to perturbation of the APC/C. swm1Delta mutants, but not mnd2Delta mutants, exhibit defects in APC/C substrate turnover, both during the mitotic cell cycle and in alpha factor arrested cells. In contrast, apc9Delta mutants exhibit only minor defects in substrate degradation in alpha factor arrested cells. In cycling cells, degradation of Clb2p, but not Pds1p or Clb5p, is delayed in apc9Delta. Our findings suggest that Swm1p is required for full catalytic activity of the APC/C, whereas the requirement of Mnd2p for APC/C function appears to be negligible under standard laboratory conditions. Furthermore, the role of Apc9p in APC/C-dependent ubiquitination may be limited to the proteolysis of a select number of substrates.
| Status: Published | Type: Journal Article | PubMed ID: 15911580 |
Topics addressed in this paper
Number of different genes curated to this paper: 3
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