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Chromatin Position Affects Gene Expression

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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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Related Experiment Video

Updated: Jun 24, 2026

Low-input Nucleus Isolation and Multiplexing with Barcoded Antibodies of Mouse Sympathetic Ganglia for Single-nucleus RNA Sequencing

Low-input Nucleus Isolation and Multiplexing with Barcoded Antibodies of Mouse Sympathetic Ganglia for Single-nucleus RNA Sequencing

Published on: March 23, 2022

Nuclear neighborhoods and gene expression.

Rui Zhao¹, Megan S Bodnar, David L Spector

¹Molecular and Cellular Biology Program, Stony Brook University, Stony Brook, NY 11794, USA.

Current Opinion in Genetics & Development

|April 3, 2009

Summary

This summary is machine-generated.

Gene location within the eukaryotic nucleus influences gene activity. Specific nuclear neighborhoods are linked to either gene expression or repression, impacting transcriptional regulation.

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Nuclei Isolation from Adult Mouse Kidney for Single-Nucleus RNA-Sequencing

Nuclei Isolation from Adult Mouse Kidney for Single-Nucleus RNA-Sequencing

Published on: September 20, 2021

Area of Science:

Cell Biology
Molecular Biology
Genetics

Background:

The eukaryotic nucleus is a dynamic and compartmentalized organelle.
Chromosome territories are organized non-randomly, suggesting spatial influence on gene function.
Previous research indicates a gene's nuclear position can affect its transcriptional activity.

Purpose of the Study:

To review recent advances in understanding how specific nuclear neighborhoods influence gene expression or repression.
To highlight the role of nuclear architecture in regulating gene activity.

Main Methods:

Review of recent scientific literature and studies.
Analysis of findings related to gene positioning and transcriptional regulation.
Identification of nuclear neighborhoods associated with distinct gene expression states.

Main Results:

Nuclear neighborhoods like the inner nuclear membrane/nuclear lamina and perinucleolar chromatin are associated with transcriptional repression.
Regions such as the nuclear pore complex, PML nuclear bodies, and nuclear speckles appear transcriptionally permissive.
Gene position is a significant factor, but likely one of many in regulating gene expression.

Conclusions:

Specific nuclear neighborhoods play a defined role in controlling gene expression and repression.
Further research is needed to fully elucidate the mechanisms governing gene regulation by nuclear neighborhoods.
The spatial organization of the genome within the nucleus is crucial for understanding gene activity.