Cohesin News and Research

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Cohesin is the protein responsible for binding the sister chromatids during mitosis after S phase. At metaphase, most cohesin is removed, except for some at the centromere. At Anaphase, securin, an inhibitory subunit of separase, is hydrolyzed.

First Evidence of Oocyte Cohesion Rejuvenation Discovered in Fruit Flies

A Dartmouth study conducted on fruit flies reports the first evidence in any organism that oocytes-;the cells that become eggs-;regularly rejuvenate the critical protein linkages that bind chromosomes together.

13 Jun 2024

New Insights Into Centromere Structure: Two Subdomains Revealed

Researchers from the Kops group in collaboration with researchers from the University of Edinburgh, made a surprising new discovery in the structure of the centromere, a structure that is involved in ensuring that chromosomes are segregated properly when a cell divides.

14 May 2024

Researchers Identify Genes Linked to Genomic Instability and DNA Damage

More than one hundred key genes linked to DNA damage have been uncovered through systematic screening of nearly 1,000 genetically modified mouse lines, in a new study published today (14 February) in Nature.

16 Feb 2024

USC Scientists Discover Protein Key to 3D Genome Control and Gene Silencing

Each cell’s nucleus contains DNA, which is the blueprint for human life.

17 Jan 2024

Universal Mechanism by Which Cells Determine DNA Shape Uncovered

We finally know why our DNA has an X shape. This finding by researchers at the Netherlands Cancer Institute may have much broader implications for how our cells behave.

21 Apr 2023

Spatial Organization of Chromosomes and the Role of DNA Tension

Two protein complexes are primarily responsible for chromosomal spatial organization in human cell nuclei. DNA tension has an unanticipated function in this. Together with Austrian colleagues, nanoscientist Cees Dekker and his PhD candidate Roman Barth of TU Delft’s Kavli Institute of Nanoscience published their detailed visualization in Nature on April 19th, 2023.

21 Apr 2023

Revealing how cohesin attaches to the DNA and forms loops

Ana Losada, a scientist at the Spanish National Cancer Research Centre (CNIO) and then at the Cold Spring Harbor Laboratory, identified cohesin, a protein essential to the process of cell division, in Xenopus frogs at the end of the 1990s.

5 Apr 2023

Researchers unravel impacts of protein BRD4 on how DNA folds

Recent research enhances the understanding of certain cancers and complex congenital disorders.

8 Oct 2021

Study reveals the role of transcription in shaping the genome

Developments in the field of microscopy allowed scientists to picture loops of DNA strands for the first time.

26 Jul 2021

Study shows adverse effect of pH-dependent switch in protein interaction

Each biological process depends on pH in one way or another. The human body should maintain constant and specific pH regulation to function efficiently.

27 Oct 2020

Researchers identify novel protein complex that regulates chromosome segregation

Researchers from the University of Tsukuba have identified a novel protein complex that regulates Aurora B localization to ensure that chromosomes are correctly separated during cell division.

26 Jun 2020

Dysfunctional placenta can contribute to Cornelia de Lange syndrome

Researchers have demonstrated that a dysfunctional placenta can play a formerly unknown role during the earliest phases of development in Cornelia de Lange.

17 Jun 2020

Study reveals new mechanism that controls chromosome inheritance

During the process of each single cell division, the chromosomal genetic data should be uniformly distributed between the freshly developing daughter cells.

13 Apr 2020