Related Experiment Video
Updated: Mar 23, 2026
12:46
Using Fluorescence In Situ Hybridization FISH to Monitor the State of Arm Cohesion in Prometaphase and Metaphase I Drosophila Oocytes
Published on: December 6, 2017
12.1K
Condensin in Chromatid Cohesion and Segregation
Susumu Uchiyama1, Kiichi Fukui
1Department of Biotechnology, Graduate School of Engineering, Osaka University, Osaka, Japan.
Cytogenetic and Genome Research
|March 22, 2016
Summary
Condensin, a protein complex, plays a crucial role in maintaining chromosome structure and function. Recent research highlights its newly discovered functions in sister chromatid cohesion and segregation during cell division.
Area of Science:
- Cell Biology
- Molecular Biology
- Genetics
Background:
- Sister chromatids are held together after DNA replication until mitosis.
- Key proteins like cohesin, separase, shugoshin, and condensin regulate chromatid cohesion and segregation.
- Condensin, a 5-subunit complex, has been primarily studied for its role in chromosome morphology.
Purpose of the Study:
- To review recent findings on condensin's function.
- To highlight condensin's role in sister chromatid cohesion and segregation.
Main Methods:
- Literature review of recent studies on condensin.
- Analysis of molecular mechanisms involved in chromatid cohesion and segregation.
Main Results:
- Condensin is essential for proper chromosome condensation and segregation.
- Recent studies reveal condensin's direct involvement in maintaining sister chromatid cohesion.
- Condensin also plays a role in the timely separation of sister chromatids.
Conclusions:
- Condensin's functions extend beyond chromosome morphology to include critical roles in sister chromatid cohesion and segregation.
- Understanding condensin's multifaceted roles is vital for comprehending cell division processes.
Related Concept Videos
02:15Condensins
4.9K
Condensins are large protein complexes that use ATP to fuel the assembly of chromosomes during mitosis. They transform the tangled, shapeless mass of post-interphase DNA into individualized chromosomes by compacting, organizing, and segregating chromosomal DNA.
The plant and animal cells contain two types of condensin complexes—condensin I and condensin II. Both complexes have five subunits: two SMC (Structural Maintenance of Chromosomes) subunits, a kleisin subunit, and two HEAT-repeat...
The plant and animal cells contain two types of condensin complexes—condensin I and condensin II. Both complexes have five subunits: two SMC (Structural Maintenance of Chromosomes) subunits, a kleisin subunit, and two HEAT-repeat...
4.9K
02:15Condensins
2.2K
2.2K
02:20Cohesins
5.8K
Cohesin protein complexes are a molecular glue that holds two sister chromatids together. They play an important role both in mitosis and meiosis. In mitosis, all cohesin complexes present on the chromosomes are removed before the start of the anaphase stage.
Cohesin complexes in Meiotic Division
Meiosis involves two distinct rounds of chromosomal segregation and cell divisions— Meiosis I followed by Meiosis II – producing four daughter cells. Meiosis I includes the separation of...
Cohesin complexes in Meiotic Division
Meiosis involves two distinct rounds of chromosomal segregation and cell divisions— Meiosis I followed by Meiosis II – producing four daughter cells. Meiosis I includes the separation of...
5.8K
02:20Cohesins
2.5K
2.5K
02:17Separation of Sister Chromatids
4.7K
At the transition from prophase to metaphase, there is a reduction in cohesion along the chromosomal arms, resulting in the resolution of sister chromatids. However, residual cohesin connections remain to hold the sister chromatids together until the transition from metaphase to anaphase. The residual connection prevents any premature separation of sister chromatids, blocking the risks of aneuploidy within the daughter cells.
At the onset of anaphase, separase, a proteolytic enzyme, is...
At the onset of anaphase, separase, a proteolytic enzyme, is...
4.7K
02:17Separation of Sister Chromatids
2.5K
2.5K