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Updated: Jun 8, 2025

HOX Loci Focused CRISPR/sgRNA Library Screening Identifying Critical CTCF Boundaries
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在调节LINE-1元件静音中,两个相似的人类静音枢纽 (HuSH) 复合体之间的相互作用

Zena D Jensvold1, Julia R Flood1, Anna E Christenson1

  • 1Department of Biomolecular Chemistry, School of Medicine and Public Health, University of Wisconsin, Madison, WI, USA.

Nature communications
|November 3, 2024
PubMed
概括

研究人员发现了一个新的复合体,HuSH2,它与原来的HuSH复合体一起工作. 这些复合体调节LINE-1逆转移子和其他基因等移动遗传元素,确保细胞的稳定性.

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In 1928, a German botanist Emil Heitz observed the moss nuclei with a DNA binding dye. He observed that while some chromatin regions decondense and spread out in the interphase nucleus, others do not. He termed them euchromatin and heterochromatin, respectively. He proposed that the heterochromatin regions reflect a functionally inactive state of the genome. It was later confirmed that heterochromatin is transcriptionally repressed, and euchromatin is transcriptionally active chromatin.
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The Hedgehog gene (Hh) was first discovered due to its control of the growth of disorganized, hair-like bristles phenotype in Drosophila, much like hedgehog spines. Hh plays a crucial role in the development of organs and the maintenance of homeostasis in both invertebrates and vertebrates. However, while Drosophila has only one Hh protein, mammals have multiple functional Hedgehog proteins - Sonic (Shh), Desert (Dhh), and Indian Hedgehog (Ihh). All of these homologous proteins have adapted to...
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