Related Experiment Video
Updated: Jun 26, 2025

07:23
Dual CRISPR-Interference Strategy for Targeting Synthetic Lethal Interactions Between Non-Coding RNAs in Cancer Cells
Published on: May 30, 2025
277
LncRNAs, nuclear architecture and the immune response
Christy Montano1, Cristina Flores-Arenas1, Susan Carpenter1
1Department of Molecular Cell and Developmental Biology, University of California, Santa Cruz, CA, USA.
Nucleus (Austin, Tex.)
|May 13, 2024
Summary
Long noncoding RNAs (LncRNAs) regulate gene expression in the nucleus and cytoplasm. This review focuses on nuclear LncRNAs
Area of Science:
- Molecular Biology
- Genetics
- Immunology
Background:
- Long noncoding RNAs (LncRNAs) are crucial regulators of gene expression.
- LncRNAs function in both the nucleus and cytoplasm.
- Nuclear-localized LncRNAs are particularly important for modulating nuclear architecture and influencing gene expression.
Purpose of the Study:
- To review the role of LncRNAs in nuclear architecture.
- To explore the gene regulatory functions of nuclear LncRNAs in innate immunity.
- To discuss methods for characterizing nuclear-localized LncRNAs and associated challenges.
Main Methods:
- Literature review of studies on LncRNAs, nuclear architecture, and innate immunity.
- Analysis of various experimental approaches for functional characterization of nuclear LncRNAs.
- Identification of challenges in the field of nuclear LncRNA research.
Main Results:
- LncRNAs significantly impact nuclear architecture.
- Nuclear LncRNAs play a key role in regulating gene expression within the context of innate immunity.
- Current methods for functional characterization of nuclear LncRNAs are diverse but face limitations.
Conclusions:
- Nuclear LncRNAs are integral to maintaining nuclear organization and function.
- Understanding the role of nuclear LncRNAs in innate immunity is critical for advancing the field.
- Further development of robust methodologies is needed to overcome challenges in nuclear LncRNA research.
Related Concept Videos
lncRNA - Long Non-coding RNAs
8.6K
In humans, more than 80% of the genome gets transcribed. However, only around 2% of the genome codes for proteins. The remaining part produces non-coding RNAs which includes ribosomal RNAs, transfer RNAs, telomerase RNAs, and regulatory RNAs, among other types. A large number of regulatory non-coding RNAs have been classified into two groups depending upon their length – small non-coding RNAs, such as microRNA, which are less than 200 nucleotides in length, and long non-coding RNA...
8.6K
Regulation of Nuclear Protein Sorting
2.4K
Nuclear protein sorting regulates nucleus composition and gene expression, crucial for determining the fate of a eukaryotic cell. Hence, the entry and exit of molecules across the nuclear envelope is a tightly controlled process. Nuclear protein sorting can be inhibited by one of the following ways: 1) masking cargo signal sequences, 2) modifying the nuclear receptor's affinity for cargo, 3) controlling the nuclear pore size, 4) retaining the cargo during its transit to the cytosol or the...
2.4K
Nuclear Localization Signals and Import
5.7K
Proteins targeted to the nucleus carry short stretches of amino acid sequences called the nuclear localization signal or NLS. Classical nuclear localization signals are of two types: monopartite and bipartite NLS. Monopartite classical NLS (cNLS) consists of a single cluster of 4-8 amino acids. Bipartite cNLS consists of two clusters of 2-3 amino acids and a 9-12 residue long proline-rich linker bridging the two clusters. Signal clusters are rich in positively charged amino acids such as...
5.7K
The Nucleolus
8.8K
The nucleolus is the most prominent substructure of the nucleus. When it was first discovered, it was considered to be an isolated organelle that forms fibrils and granules. In 1931, the relationship between the nucleolus and chromosomes was first described by Heitz. He observed that the appearance and size of nucleolus varies depending on the stage of the cell cycle. He also noticed constricted regions on different chromosomes clustered together at definite cell cycle stages. These regions,...
8.8K
Nuclear Export
3.6K
The nucleus restricts several proteins within and allows others to pass. The restricted proteins possess a nuclear retention sequence or NRS, anchoring them to the nuclear lamins and preventing their transport to the cytosol. The non-restricted proteins, after their synthesis, are transported to their site of action, such as the cytosol or other organelles, with the help of nuclear export signals or NES.
NES are of three types- the canonical 10-residue long leucine-rich signal and other...
NES are of three types- the canonical 10-residue long leucine-rich signal and other...
3.6K
Nuclear Export of mRNA
7.7K
Before mRNAs are exported to the cytoplasm, it is crucial to check each mRNA for structural and functional integrity. Eukaryotic cells use several different mechanisms, collectively known as mRNA surveillance, to look for irregularities in mRNAs. Irregular or aberrant mRNA are rapidly degraded by various enzymes. If a defective mRNA escapes the surveillance, it would be translated into a protein which would either be non-functional or not function properly. One of the primary irregularities in...
7.7K

