Results 31 to 40 of about 14,462 (190)

Single-Molecule Imaging Reveals a Collapsed Conformational State for DNA-Bound Cohesin

open access: yesCell Reports, 2016
Cohesin is essential for the hierarchical organization of the eukaryotic genome and plays key roles in many aspects of chromosome biology. The conformation of cohesin bound to DNA remains poorly defined, leaving crucial gaps in our understanding of how ...
Johannes Stigler   +3 more
doaj   +1 more source

Sensitivity of cohesin–chromatin association to high-salt treatment corroborates non-topological mode of loop extrusion

open access: yesEpigenetics & Chromatin, 2021
Cohesin is a key organizer of chromatin folding in eukaryotic cells. The two main activities of this ring-shaped protein complex are the maintenance of sister chromatid cohesion and the establishment of long-range DNA–DNA interactions through the process
Arkadiy K. Golov   +3 more
doaj   +1 more source

Characteristics of Cohesin Mutation in Acute Myeloid Leukemia and Its Clinical Significance

open access: yesFrontiers in Oncology, 2021
The occurrence of gene mutation is a major contributor to the initiation and propagation of acute myeloid leukemia (AML). Accumulating evidence suggests that genes encoding cohesin subunits have a high prevalence of mutations in AML, especially in the t ...
Caixia Han   +6 more
doaj   +1 more source

Cohesin loading and sliding [PDF]

open access: yesJournal of Cell Science, 2011
Cohesin is best known as a crucial component of chromosomal stability. Composed of several essential subunits in budding yeast, cohesin forms a ring-like complex that is thought to embrace sister chromatids, thereby physically linking them until their timely segregation during cell division.
Maria T, Ocampo-Hafalla, Frank, Uhlmann
openaire   +2 more sources

Chromatin insulators and cohesins [PDF]

open access: yesEMBO reports, 2008
Chromatin insulators have evolved to regulate transcription by using regulatory elements that are often distant from each other on the linear genome. This feature is position‐dependent—that is, a functional insulator must be positioned between the enhancer and its target promoter (Wallace & Felsenfeld, 2007).
Anita, Göndör, Rolf, Ohlsson
openaire   +2 more sources

Histone chaperone NAP1 mediates sister chromatid resolution by counteracting protein phosphatase 2A.

open access: yesPLoS Genetics, 2013
Chromosome duplication and transmission into daughter cells requires the precisely orchestrated binding and release of cohesin. We found that the Drosophila histone chaperone NAP1 is required for cohesin release and sister chromatid resolution during ...
Yuri M Moshkin   +9 more
doaj   +1 more source

A folded conformation of MukBEF and Cohesin [PDF]

open access: yesNature Structural & Molecular Biology, 2018
Abstract Structural maintenance of chromosomes (SMC)-kleisin complexes organize chromosomal DNAs in all domains of life, where they have key roles in chromosome segregation, DNA repair and regulation of gene expression. They function through topological entrapment and active translocation of DNA, but the underlying conformational ...
Frank Bürmann   +9 more
openaire   +4 more sources

Stage-specific binding profiles of cohesin in resting and activated B lymphocytes suggest a role for cohesin in immunoglobulin class switching and maturation.

open access: yesPLoS ONE, 2014
The immunoglobulin heavy chain locus (Igh) features higher-order chromosomal interactions to facilitate stage-specific assembly of the Ig molecule.
Gamze Günal-Sadık   +5 more
doaj   +1 more source

Cohesin-Mediated Chromatin Interactions and Autoimmunity

open access: yesFrontiers in Immunology, 2022
Proper physiological functioning of any cell type requires ordered chromatin organization. In this context, cohesin complex performs important functions preventing premature separation of sister chromatids after DNA replication. In partnership with CCCTC-
Venkataragavan Chandrasekaran   +12 more
doaj   +1 more source

Genome-wide mapping of the cohesin complex in the yeast Saccharomyces cerevisiae.

open access: yesPLoS Biology, 2004
In eukaryotic cells, cohesin holds sister chromatids together until they separate into daughter cells during mitosis. We have used chromatin immunoprecipitation coupled with microarray analysis (ChIP chip) to produce a genome-wide description of cohesin ...
Earl F Glynn   +7 more
doaj   +1 more source

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