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The nuclear pore complex

L I Davis1

  • 1Department of Genetics, Howard Hughes Medical Institute, Duke University Medical Center, Durham, North Carolina 27710, USA.

Annual Review of Biochemistry
|January 1, 1995
PubMed
Summary
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The nuclear pore complex (NPC) facilitates bidirectional macromolecular transport between the nucleus and cytoplasm. This review explores NPC structure, nucleoporins, transport mechanisms, and assembly pathways.

Area of Science:

  • Cell Biology
  • Molecular Biology
  • Structural Biology

Background:

  • The nuclear pore complex (NPC) is a crucial gatekeeper regulating transport between the nucleus and cytoplasm.
  • Nucleocytoplasmic traffic involves diverse molecules like proteins and RNA, with multiple pathways potentially existing.
  • Emerging evidence suggests NPCs may also have a structural role, connecting nuclear and cytoplasmic cytoskeletal elements.

Purpose of the Study:

  • To review recent advancements in understanding the nuclear pore complex.
  • To elucidate the structure, constituent proteins (nucleoporins), and transport mechanisms of the NPC.
  • To discuss the functional roles of nucleoporins and the process of NPC assembly and disassembly.

Main Methods:

  • Literature review of recent developments in NPC research.

Related Experiment Videos

  • Analysis of studies characterizing NPC structure and nucleoporins.
  • Synthesis of data on nucleocytoplasmic transport mechanisms and NPC assembly.

    • Main Results:

    • NPCs form an aqueous channel essential for macromolecular transport.
    • Nucleocytoplasmic transport is bidirectional, involving various substrates and potentially multiple pathways.
    • NPCs possess filaments suggesting a structural role, possibly linking nuclear and cytoplasmic cytoskeletons.

    Conclusions:

    • The NPC's structure and function are complex, involving both transport and potential structural roles.
    • Further research is needed to determine the relationship between the NPC's structural and transport functions.
    • Understanding nucleoporin function and NPC assembly is key to comprehending nuclear transport regulation.