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CRISPR-Mediated Reorganization of Chromatin Loop Structure
09:20

CRISPR-Mediated Reorganization of Chromatin Loop Structure

Published on: September 14, 2018

13.1K

生理学的なV (D) J再結合におけるクロマチンのループの流出の基本的役割

Yu Zhang1,2,3,4,4, Xuefei Zhang1,2,3, Zhaoqing Ba1,2,3

  • 1Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA, USA.

Nature
|September 13, 2019
PubMed
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Chromatin looping plays a significant role in gene regulation; however, there have been no technological advances that allow for selective and reversible modification of chromatin loops. Here we describe a powerful system for chromatin loop re-organization using CRISPR-dCas9 (CLOuD9), demonstrated to selectively and reversibly modulate gene expression at targeted...
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Chromatin is the massive complex of DNA and proteins packaged inside the nucleus. The complexity of chromatin folding and how it is packaged inside the nucleus greatly influences  access to genetic information. Generally, the nucleus' periphery is considered transcriptionally repressive, while the cell's interior is considered a transcriptionally active area. 
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Histones are proteins that help organize DNA in eukaryotic nuclei by serving as “scaffolds” around which DNA can be wrapped, forming a complex called “chromatin”. These proteins can be modified through the addition of chemical groups, and these changes affect gene expression. Researchers use a technique called chromatin immunoprecipitation (ChIP) to better understand which DNA regions associate with specific histone modifications or other gene regulatory proteins.
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