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Updated: Jul 9, 2025
12:13
Single-Molecule Imaging of Nuclear Transport
Published on: June 9, 2010
13.4K
Nuclear envelope budding: Getting large macromolecular complexes out of the nucleus.
Kevin C Sule1, Mitsutoshi Nakamura1, Susan M Parkhurst1
1Basic Sciences Division, Fred Hutchinson Cancer Center, Seattle, Washington, USA.
Summary
Nuclear Envelope (NE)-budding is a novel pathway for exporting large molecules from the nucleus to the cytoplasm. This process bypasses traditional nuclear pores and is crucial for cellular functions and disease progression.
Area of Science:
- Cell Biology
- Molecular Biology
- Biochemistry
Background:
- Nuclear export of macromolecules is vital for cellular and developmental processes.
- Dysregulation of nuclear export is linked to diseases, including cancer.
- Nuclear Envelope (NE)-budding is an emerging pathway for exporting large molecular complexes.
Purpose of the Study:
- To summarize current knowledge on the regulatory and structural machinery of NE-budding.
- To highlight the biological importance and clinical relevance of NE-budding.
- To provide an overview of this intriguing nuclear export process.
Main Methods:
- Literature review and synthesis of existing research on NE-budding.
- Comparison of NE-budding with canonical nuclear export and viral egress mechanisms.
- Analysis of proposed regulatory and structural components involved in NE-budding.
Main Results:
- NE-budding facilitates the export of large macromolecular complexes by enveloping them within the inner nuclear membrane.
- This pathway bypasses the nuclear pore complex, offering an alternative route for nuclear export.
- NE-budding is a conserved process sharing similarities with herpesvirus nuclear egress.
Conclusions:
- NE-budding represents a significant, yet understudied, mechanism for nuclear export of large complexes.
- Understanding NE-budding machinery is critical for comprehending its role in cellular functions and diseases.
- Further research is needed to elucidate the regulatory and structural details of NE-budding.
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