LINE-1, the NORth star of nucleolar organization

IF 7.5 1区生物学 Q1 CELL BIOLOGY

Genes & development Pub Date : 2025-01-10 DOI:10.1101/gad.352583.124

Misaki Matsuo, Gael Cristofari

引用次数: 0

Abstract

Long interspersed element-1 (LINE-1) retrotransposons are abundant transposable elements in mammals and significantly influence chromosome structure, chromatin organization, and 3D genome architecture. In this issue of Genes & Development, Ataei et al. (doi:10.1101/gad.351979.124) identify a homininae-specific LINE-1 element within nucleolar ogranizer regions (NORs) that is specifically transcribed in naïve human embryonic stem cells. Deletion or silencing of this element disrupts nucleolar organization and function and alters cellular identity. These findings provide novel insights into the role of retrotransposons in genome organization and suggest that individual LINE-1 elements may have evolved specialized roles.

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线-1，核仁组织的北极星

Long interspersed element-1 （LINE-1）逆转录转座子是哺乳动物中丰富的转座子，对染色体结构、染色质组织和三维基因组结构有重要影响。在本期的《基因》杂志上；Development， Ataei等人（doi:10.1101/gad.351979.124）鉴定了在naïve人类胚胎干细胞中特异性转录的核仁增粒区（NORs）中具有人科特异性的LINE-1元件。该元件的缺失或沉默会破坏核仁的组织和功能，并改变细胞的身份。这些发现为逆转录转座子在基因组组织中的作用提供了新的见解，并表明单个LINE-1元件可能进化出专门的作用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Genes & development 生物-发育生物学

CiteScore

17.50

自引率

1.90%

发文量

审稿时长

3-6 weeks

期刊介绍： Genes & Development is a research journal published in association with The Genetics Society. It publishes high-quality research papers in the areas of molecular biology, molecular genetics, and related fields. The journal features various research formats including Research papers, short Research Communications, and Resource/Methodology papers. Genes & Development has gained recognition and is considered as one of the Top Five Research Journals in the field of Molecular Biology and Genetics. It has an impressive Impact Factor of 12.89. The journal is ranked #2 among Developmental Biology research journals, #5 in Genetics and Heredity, and is among the Top 20 in Cell Biology (according to ISI Journal Citation Reports®, 2021).