Loss of 26S proteasome function leads to increased cell size and decreased cell number in Arabidopsis shoot organs.

@article{Kurepa2009LossO2,
  title={Loss of 26S proteasome function leads to increased cell size and decreased cell number in Arabidopsis shoot organs.},
  author={Jasmina Kurepa and Songhu Wang and Yan Li and David Zaitlin and Andrew Pierce and Jan A Smalle},
  journal={Plant physiology},
  year={2009},
  volume={150 1},
  pages={
          178-89
        }
}
Although the final size of plant organs is influenced by environmental cues, it is generally accepted that the primary size determinants are intrinsic factors that regulate and coordinate cell proliferation and cell expansion. Here, we show that optimal proteasome function is required to maintain final shoot organ size in Arabidopsis (Arabidopsis thaliana). Loss of function of the subunit regulatory particle AAA ATPase (RPT2a) causes a weak defect in 26S proteasome activity and leads to an… CONTINUE READING

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Proteasome subunit Rpn 1 binds ubiquitinlike protein domains

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