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Related Experiment Videos

The D box asserts itself.

Thomas J Owens1, M Andrew Hoyt

  • 1Department of Biology, The Johns Hopkins University, Baltimore, Maryland 21218, USA.

Molecular Cell
|June 14, 2005
PubMed
Summary
This summary is machine-generated.

New research shows that APC/C coactivators directly recognize D and KEN boxes in substrate proteins. The D box plays a key role in forming active anaphase-promoting complex/cyclosome (APC/C) complexes.

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Area of Science:

  • Cellular biology
  • Molecular mechanisms of cell cycle regulation

Background:

  • The anaphase-promoting complex/cyclosome (APC/C) is a crucial E3 ubiquitin ligase complex.
  • APC/C regulates key events in cell division, including chromosome segregation and exit from mitosis.
  • Substrate recognition by the APC/C is mediated by specific sequence motifs.

Purpose of the Study:

  • To investigate the direct recognition of D and KEN boxes by APC/C coactivators.
  • To elucidate the role of the D box in the assembly of catalytically active APC/C.

Main Methods:

  • Studies involved analyzing the interactions between APC/C coactivators and substrate proteins.
  • Focus on the significance of D box and KEN box sequence elements.

Main Results:

Related Experiment Videos

  • Demonstrated direct recognition of D and KEN boxes by APC/C coactivators.
  • Identified a specific role for the D box in the assembly of catalytically active APC/C.

Conclusions:

  • APC/C coactivators directly bind to D and KEN boxes on target proteins.
  • The D box is essential for the formation of active APC/C complexes, highlighting its importance in cell cycle control.