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Related Concept Videos

Nuclear Export01:42

Nuclear Export

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...
Nuclear Export of mRNA02:31

Nuclear Export of mRNA

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...
Nuclear Export of mRNA02:31

Nuclear Export of mRNA

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...
Nuclear Power02:36

Nuclear Power

Controlled nuclear fission reactions are used to generate electricity. Any nuclear reactor that produces power via the fission of uranium or plutonium by bombardment with neutrons has six components: nuclear fuel consisting of fissionable material, a nuclear moderator, a neutron source, control rods, reactor coolant, and a shield and containment system.
Nuclear Fuels
Nuclear fuel consists of a fissile isotope, such as uranium-235, which must be present in sufficient quantity to provide a...
Nuclear Transmutation03:20

Nuclear Transmutation

Nuclear transmutation is the conversion of one nuclide into another. It can occur by the radioactive decay of a nucleus, or the reaction of a nucleus with another particle. The first manmade nucleus was produced in Ernest Rutherford’s laboratory in 1919 by a transmutation reaction, the bombardment of one type of nuclei with other nuclei or with neutrons. Rutherford bombarded nitrogen-14 atoms with high-speed α particles from a natural radioactive isotope of radium and observed protons being...
Nuclear Fission02:50

Nuclear Fission

Many heavier elements with smaller binding energies per nucleon can decompose into more stable elements that have intermediate mass numbers and larger binding energies per nucleon—that is, mass numbers and binding energies per nucleon that are closer to the “peak” of the binding energy graph near 56. Sometimes neutrons are also produced. This decomposition of a large nucleus into smaller pieces is called fission. The breaking is rather random with the formation of a large number of different...

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Related Experiment Video

Updated: Jun 24, 2026

Analysis of mRNA Nuclear Export Kinetics in Mammalian Cells by Microinjection
11:32

Analysis of mRNA Nuclear Export Kinetics in Mammalian Cells by Microinjection

Published on: December 4, 2010

Rev: beyond nuclear export.

H C T Groom1, E C Anderson2, A M L Lever1

  • 1Department of Medicine, Addenbrooke's Hospital, Cambridge CB2 2QQ, UK.

The Journal of General Virology
|March 27, 2009
PubMed
Summary
This summary is machine-generated.

The retroviral protein Rev controls gene expression through nuclear export, translation, and encapsidation. Understanding Rev

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Anti-Nuclear Antibody Screening Using HEp-2 Cells

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Last Updated: Jun 24, 2026

Analysis of mRNA Nuclear Export Kinetics in Mammalian Cells by Microinjection
11:32

Analysis of mRNA Nuclear Export Kinetics in Mammalian Cells by Microinjection

Published on: December 4, 2010

Anti-Nuclear Antibody Screening Using HEp-2 Cells
13:01

Anti-Nuclear Antibody Screening Using HEp-2 Cells

Published on: June 23, 2014

Area of Science:

  • Molecular Biology
  • Virology
  • Gene Regulation

Background:

  • The retroviral protein Rev plays a crucial role in the life cycle of retroviruses.
  • Rev's function extends beyond nuclear export, impacting translation and encapsidation.
  • Research into Rev is vital for understanding viral replication and developing therapies.

Purpose of the Study:

  • To review current knowledge on the control of gene expression by the retroviral protein Rev.
  • To explore the multifaceted roles of Rev in translation, encapsidation, and nuclear export.
  • To identify future research directions for understanding Rev's function and combating AIDS.

Main Methods:

  • Literature review of existing research on the retroviral protein Rev.
  • Analysis of Rev's known functions in gene expression, translation, and viral packaging.
  • Speculative discussion on emerging research trends and their implications.

Main Results:

  • Rev exhibits a complex, multifaceted role in regulating viral gene expression.
  • Rev's functions in nuclear export, translation, and encapsidation are interconnected.
  • The 116-amino acid Rev protein is critical for viral replication.

Conclusions:

  • Continued research on Rev is essential for a comprehensive understanding of retroviral replication.
  • Elucidating Rev's mechanisms can lead to novel strategies for combating HIV/AIDS.
  • Rev's intricate functions highlight its importance as a therapeutic target.