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Korean Society for Biochemistry and Molecular Biology (생화학분자생물학회)
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Structures of proteases for ubiqutin and ubiquitin-like modifiers

  • Ha, Byung-Hak (Life Sciences Division, Korea Institute of Science and Technology, Seoul National University) ;
  • Kim, Eunice Eun-Kyeong (Life Sciences Division, Korea Institute of Science and Technology, Seoul National University)
  • Accepted : 2008.06.03
  • Published : 2008.06.30
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Abstract

Post-translational modifiers can alter the function of proteins in many different ways. The conjugation of ubiquitin (Ub) and ubiqutin-like modifiers (Ubls) to proteins has been shown to be especially crucial in regulating a variety of cellular processes including the cell cycle, growth control, quality control, localization and many more. It is a highly dynamic process and involves a number of enzymes called E1, E2 and E3. Ub and Ubls are removed from the target proteins by deubiquitinating enzymes (DUBs) or Ubl-specific proteases (ULPs), thereby deconjugation can act as an additional level of control over the ubiquitin-conjugation system. In addition, DUBs and ULPs are responsible for activating Ub and Ubls from their inactive corresponding precursor forms. Here we review recent progress in molecular details of these deconjugating enzymes of Ubls.

Keywords

References

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