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Related Concept Videos

Protein Complexes with Interchangeable Parts01:57

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Groups of proteins may form a complex where each protein in this complex has a different role in the overall execution of the complex’s function. Often some of the proteins in the complex can be replaced by a closely related variant to give a complex that contains many of the same components yet is functionally distinct.
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Updated: Mar 25, 2026

Identification of Protein Complexes in Escherichia coli using Sequential Peptide Affinity Purification in Combination with Tandem Mass Spectrometry
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SnapShot: SMC Protein Complexes Part II.

Christian H Haering1, Stephan Gruber2

  • 1European Molecular Biology Laboratory (EMBL), 69117 Heidelberg, Germany.

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Summary
This summary is machine-generated.

Structural Maintenance of Chromosomes (SMC) proteins play crucial roles throughout the eukaryotic cell cycle. This review details their functions in cell cycle progression and regulation.

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Area of Science:

  • Molecular Biology
  • Cell Biology
  • Genetics

Background:

  • Structural Maintenance of Chromosomes (SMC) proteins are essential for genome stability.
  • SMC complexes are involved in various DNA-related processes, including replication, repair, and transcription.
  • Understanding their cell cycle-specific functions is critical for comprehending eukaryotic cell division.

Purpose of the Study:

  • To elucidate the diverse roles of SMC protein complexes during different phases of the eukaryotic cell cycle.
  • To provide a comprehensive overview of SMC protein functions in cell cycle regulation.
  • To complement previous work on SMC protein complex composition and architecture.

Main Methods:

  • Literature review and synthesis of existing research on SMC proteins.
  • Analysis of data from various eukaryotic cell cycle studies.
  • Integration of findings on SMC protein complexes and their regulators.

Main Results:

  • SMC proteins exhibit distinct functions at different cell cycle stages, including chromosome condensation, segregation, and DNA repair.
  • Specific SMC complexes and their associated regulators are dynamically involved in cell cycle progression.
  • The interplay between SMC proteins and other cell cycle machinery ensures accurate genome duplication and cell division.

Conclusions:

  • SMC proteins are key regulators of the eukaryotic cell cycle, ensuring genomic integrity.
  • Their dynamic roles highlight the complexity of cell cycle control mechanisms.
  • Further research into SMC protein functions will offer insights into cell proliferation and disease.