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The nuclear envelope: emerging roles in development and disease.
1Department of Molecular Biology and Genetics, Cornell University, Ithaca, New York 14853-2703, USA. mfw5@cornell.edu
Cellular and Molecular Life Sciences : CMLS
|January 5, 2002
Summary
The nuclear envelope, a boundary for eukaryotic chromosomes, plays critical roles in DNA replication, gene expression, and cell division. Recent advances highlight its importance as an organelle in multicellular organisms.
Area of Science:
- Cell biology
- Molecular biology
- Genetics
Background:
- The nuclear envelope separates eukaryotic chromosomes from the cytoplasm, featuring a double membrane with pore complexes for molecular transport.
- It anchors nuclear lamina and Tpr filaments to the nuclear perimeter, linking to chromosomes.
Discussion:
- Nuclear envelope proteins are crucial for DNA replication, gene expression/silencing, chromatin organization, and cell division.
- These proteins also regulate apoptosis, sperm nuclear remodeling, pronuclear behavior, cell fate, nuclear migration, and cell polarity.
Key Insights:
- Mutations in nuclear lamins and associated proteins lead to inherited diseases affecting specific tissues.
- The nuclear envelope is increasingly recognized as a vital organelle for genetic and developmental processes.
Outlook:
- This special issue reviews recent advances in characterizing nuclear envelope proteins and their functions.
- Further research will deepen our understanding of the nuclear envelope's multifaceted roles in multicellular organisms.