1932

Abstract

▪ Abstract 

Protein complexes consisting of tructural aintenance of hromosomes (SMC) and kleisin subunits are crucial for the faithful segregation of chromosomes during cell proliferation in prokaryotes and eukaryotes. Two of the best-studied SMC complexes are cohesin and condensin. Cohesin is required to hold sister chromatids together, which allows their biorientation on the mitotic spindle. Cleavage of cohesin's kleisin subunit by the separase protease then triggers the movement of sister chromatids into opposite halves of the cell during anaphase. Condensin is required to organize mitotic chromosomes into coherent structures that prevent them from getting tangled up during segregation. Here we describe the discovery of SMC complexes and discuss recent advances in determining how members of this ancient protein family may function at a mechanistic level.

Loading

Article metrics loading...

/content/journals/10.1146/annurev.biochem.74.082803.133219
2005-07-07
2024-06-17
Loading full text...

Full text loading...

/content/journals/10.1146/annurev.biochem.74.082803.133219
Loading
/content/journals/10.1146/annurev.biochem.74.082803.133219
Loading

Data & Media loading...

  • Article Type: Review Article
This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error