High resolution analysis of mammalian nuclear structure throughout the cell cycle: Implications for nuclear pore complex assembly during interphase and mitosis

Drummond, Sheona P.; Rutherford, Sandra A.; Sanderson, Helen S.; Allen, Terry D.

Abstract

Nuclear pore complexes (NPCs) are the gateways for both active and passive bidirectional molecular transport between the nucleoplasm and cytoplasm. These mega-dalton assemblies are composed of multiple copies of approximately 30 distinct proteins termed nucleoporins. Higher eukaryotes display an "open" mitosis in which the NPCs, nuclear envelope, and lamina disassemble. During mitosis several nucleoporins are redistributed to kinetochores until they are recruited back to the periphery of chromatin as the NPCs are reassembled. Within this study we have developed and optimized the visualization of mammalian cells and their chromosome profiles throughout the cell-cycle. Close attention has been paid to the preservation of chromatin, membranes, and NPC structure to investigate the ultrastructural locations of specific proteins in both interphase and mitosis. © 2006 NRC.

• Journal Article Type: Review
• Acceptance Date: Jan 2, 2006
• Online Publication Date: May 31, 2006
• Publication Date: Mar 1, 2006
• Deposit Date: Jun 22, 2021
• Journal: Canadian Journal of Physiology and Pharmacology
• Print ISSN: 0008-4212
• Electronic ISSN: 1205-7541
• Publisher: Canadian Science Publishing
• Peer Reviewed: Peer Reviewed
• Volume: 84
• Issue: 3-4
• Pages: 423-430
• DOI: https://doi.org/10.1139/y05-148
• Public URL: https://uwe-repository.worktribe.com/output/7483650