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The dissolution of intimate relationships presents complex emotional and psychological challenges, particularly when emotional bonds are strong, the relationship is long-standing, and perceived alternatives are limited. This distress often intensifies in romantic breakups, where the initiator may experience greater turmoil than the rejected partner. Contributing factors include residual attachment, guilt over causing pain, and uncertainty about how to manage the situation. The stress is further...
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Related Experiment Video

Updated: Nov 4, 2025

The Fastest Western in Town: A Contemporary Twist on the Classic Western Blot Analysis
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The Last Chance Saloon.

Ye Hong1, Hongtao Zhang1, Anton Gartner2

  • 1Shandong Provincial Key Laboratory of Animal Cell and Developmental Biology, School of Life Sciences, Shandong University, Qingdao, China.

Frontiers in Cell and Developmental Biology
|May 31, 2021
PubMed
Summary
This summary is machine-generated.

Accurate chromosome segregation relies on resolving chromatin bridges. A conserved endonuclease, LEM-3/ANKLE1, acts as a final safeguard to maintain genome integrity and organismal survival.

Keywords:
ANKLE1LEM-3 endonucleaseNoCut pathwayTREX1abscission checkpointchromatin bridgechromothripsismicronuclei

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Area of Science:

  • Cell Biology
  • Genetics
  • Molecular Biology

Background:

  • Accurate chromosome segregation is crucial for cell division.
  • Failure to remove chromatin bridges can lead to cell cycle arrest, polyploidization, or genome instability.
  • The abscission checkpoint (NoCut) and nucleases play roles in resolving these bridges.

Purpose of the Study:

  • To review the origins and processing of chromatin bridges.
  • To discuss the role of the abscission checkpoint (NoCut) in facilitating bridge resolution.
  • To highlight the function of LEM-3/ANKLE1 as a conserved endonuclease for resolving chromatin bridges.

Main Methods:

  • Literature review of chromatin bridge resolution mechanisms.
  • Focus on the abscission checkpoint (NoCut) and its role in cytokinesis.
  • Description of LEM-3/ANKLE1 function in *C. elegans*.

Main Results:

  • Chromatin bridges arise from various DNA metabolism issues and pose risks if not resolved.
  • The NoCut checkpoint delays cytokinesis to allow for bridge resolution.
  • LEM-3/ANKLE1 resolves various chromatin bridges at the final stage of cell division.

Conclusions:

  • LEM-3/ANKLE1 acts as a critical "last chance saloon" for resolving chromatin bridges.
  • Coordination between LEM-3/ANKLE1 and the NoCut checkpoint ensures error-free cell division.
  • This mechanism is vital for maintaining genome integrity and organismal survival.