Related Experiment Video
Updated: Apr 4, 2026

10:10
Observing Mitotic Division and Dynamics in a Live Zebrafish Embryo
Published on: July 15, 2016
12.8K
Cohesin and human disease: lessons from mouse models.
Vijay Pratap Singh1, Jennifer L Gerton2
1Stowers Institute for Medical Research, Kansas City, MO 64110, United States.
Current Opinion in Cell Biology
|September 8, 2015
Summary
Cohesin, a protein structure vital for DNA, is essential for cell division. Its partial loss of function impacts gene expression, DNA replication, and nuclear organization, offering insights into developmental disorders and cancer.
Area of Science:
- Molecular Biology
- Genetics
- Cell Biology
Background:
- Cohesin is a conserved ring-like protein complex crucial for chromosome structure and function.
- Cohesin plays roles in DNA replication, repair, segregation, condensation, and gene expression.
- Mutations in cohesin genes are linked to human developmental disorders and cancer.
Purpose of the Study:
- To investigate the role of cohesin in cellular processes using mouse models.
- To understand how cohesin dysfunction contributes to disease pathogenesis.
Main Methods:
- Development and utilization of mouse models with altered cohesin function.
- Analysis of cellular and chromosomal processes affected by cohesin.
Main Results:
- Cohesin is essential for accurate cell division.
- Partial loss of cohesin function leads to altered gene expression.
- Dysfunctional cohesin impacts DNA replication and repair.
- Cohesin alterations affect gametogenesis and nuclear organization.
Conclusions:
- Mouse models are valuable tools for studying cohesin-related diseases.
- Cohesin's multifaceted roles highlight its importance in maintaining genomic stability and proper development.
Related Concept Videos
Cohesins
5.9K
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...
5.9K
Cohesins
2.5K
2.5K
Mouse Models of Cancer Study
6.7K
Mice have long served as models for studying human biology and pathology because of their phylogenetic and physiological similarity with humans. They are also easy to maintain and breed in the laboratory, and hence, many inbred strains are now available for research. Studies on mice have contributed immeasurably to our understanding of cancer biology.
The development of transgenic, knockout, and knock-in mice has led to an exponential increase in their use as model organisms in research,...
The development of transgenic, knockout, and knock-in mice has led to an exponential increase in their use as model organisms in research,...
6.7K
Mouse Models of Cancer Study
2.5K
2.5K
Meiosis I
46.6K
Meiosis is the division of a diploid cell into haploid cells forming sperm and eggs in animals through differentiation. Meiosis I is the first stage of meiosis, where the genetic recombination of homologous chromosomes and the reduction of the ploidy level by half occurs.
Prophase I is the most extended and complex step of meiosis I characterized by synapsis, chromosome pairing, and recombination of the homologous chromosomes. This process is facilitated by a proteinaceous structure called the...
Prophase I is the most extended and complex step of meiosis I characterized by synapsis, chromosome pairing, and recombination of the homologous chromosomes. This process is facilitated by a proteinaceous structure called the...
46.6K
Condensins
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

