Results 41 to 50 of about 329,145 (275)

ESCO1 and CTCF enable formation of long chromatin loops by protecting cohesinSTAG1 from WAPL

open access: yeseLife, 2020
Eukaryotic genomes are folded into loops. It is thought that these are formed by cohesin complexes via extrusion, either until loop expansion is arrested by CTCF or until cohesin is removed from DNA by WAPL.
Gordana Wutz   +19 more
doaj   +1 more source

Proteomic interrogation of human chromatin. [PDF]

open access: yes, 2011
Chromatin proteins provide a scaffold for DNA packaging and a basis for epigenetic regulation and genomic maintenance. Despite understanding its functional roles, mapping the chromatin proteome (i.e. the "Chromatome") is still a continuing process. Here,
LeRoy, Gary   +22 more
core   +2 more sources

Histone methylation by PRC2 is inhibited by active chromatin marks [PDF]

open access: yes, 2013
Chromatin modifiers serve as regulatory switches that control the cell cycle, maintain pluripotency and drive differentiation and development. Positive feedback mechanisms help to pass on transcriptional information from one generation of cells to the ...
Schmitges, Frank W.
core   +1 more source

Chromatin loops, gene positioning, and gene expression [PDF]

open access: yesFrontiers in Genetics, 2012
Technological developments and intense research over the last years have led to a better understanding of the 3D structure of the genome and its influence on genome function inside the cell nucleus. We will summarize topological studies performed on four model gene loci: the α- and β-globin gene loci, the antigen receptor loci, the imprinted H19-Igf2 ...
Holwerda, Sjoerd, Laat, Wouter de
openaire   +4 more sources

SMARANDACHE LOOPS [PDF]

open access: yes, 2010
In this paper we study the notion of Smarandache loops. We obtain some interesting results about them. The notion of Smarandache semigroups homomorphism is studied as well in this paper.
Vasantha Kandasamy, W. B.
core   +1 more source

SnapHiC2: A computationally efficient loop caller for single cell Hi-C data

open access: yesComputational and Structural Biotechnology Journal, 2022
Single cell Hi-C (scHi-C) technologies enable the study of chromatin spatial organization directly from complex tissues at single cell resolution.
Xiaoqi Li   +7 more
doaj   +1 more source

Super-resolution visualization of chromatin loop folding in human lymphoblastoid cells using interferometric photoactivated localization microscopy

open access: yesScientific Reports, 2022
The three-dimensional (3D) genome structure plays a fundamental role in gene regulation and cellular functions. Recent studies in 3D genomics inferred the very basic functional chromatin folding structures known as chromatin loops, the long-range ...
Zofia Parteka-Tojek   +9 more
doaj   +1 more source

Chromatin Switches and Loops [PDF]

open access: yesCell, 2013
In the realm of gene expression, as in real estate, location is key. In this Select, we present two cases in which a specific histone modification causes changes to the local chromatin architecture, in turn impacting nearby gene regulation, and an example of how the spatial organization of loci creates an environment that leads to coregulation of ...
openaire   +1 more source

Diffusion Based Looping of Chromatin [PDF]

open access: yesBiophysical Journal, 2010
Chromatin folding inside the interphase nucleus of eukaryotic cells is done on multiple scales of length and time. Despite recent progress in understanding the folding motifs of chromatin, the higher-order folding still remains elusive. Flourescent in situ hybridization reveals a tight connection between genome folding and function as well as a folding
Heermann, Dieter W., Bohn, Manfred
openaire   +1 more source

InferLoop: leveraging single-cell chromatin accessibility for the signal of chromatin loop

open access: yesBriefings in Bioinformatics, 2023
Abstract Deciphering cell-type-specific 3D structures of chromatin is challenging. Here, we present InferLoop, a novel method for inferring the strength of chromatin interaction using single-cell chromatin accessibility data. The workflow of InferLoop is, first, to conduct signal enhancement by grouping nearby cells into bins, and then ...
Feng Zhang 0051   +9 more
openaire   +3 more sources

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