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Related Experiment Videos

Suc1: cdc2 affinity reagent or essential cdk adaptor protein?

L Vogel1, B Baratte

  • 1CNRS-Station Biologique, Roscoff, France.

Progress in Cell Cycle Research
|January 1, 1996
PubMed
Summary

CKS proteins, originally found as a suppressor of cdc2, are now understood to modify the activity of cdc2. These adaptor proteins play a crucial role in regulating cell cycle progression.

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Area of Science:

  • Cell Biology
  • Molecular Biology
  • Biochemistry

Background:

  • CKS proteins, including p13suc1, were initially identified through their interaction with cdc2.
  • The precise biological roles of CKS proteins have been unclear, with conflicting data across different model systems.
  • Previous research primarily utilized CKS proteins as tools for purifying p34cdc2.

Purpose of the Study:

  • To review existing and recent data on CKS proteins.
  • To investigate the hypothesis that CKS proteins modulate cdc2 activity during the cell cycle.
  • To elucidate the biological function of CKS proteins as adaptor molecules.

Main Methods:

  • Review of previous observations and recent experimental data.
  • Analysis of studies in yeast and Xenopus egg extracts.
  • Consideration of new structural information regarding CKS proteins.

Main Results:

  • Conflicting data across model systems suggest diverse functions for CKS proteins.
  • New observations in yeast and Xenopus support CKS proteins altering cdc2 activity.
  • Structural information provides insights into CKS protein mechanisms.

Conclusions:

  • CKS proteins likely function as adaptor proteins.
  • These adaptors modify the activity of cdc2 at critical cell cycle checkpoints.
  • CKS proteins play a significant role in regulating cell cycle progression through cdc2 modulation.

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