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Related Concept Videos

Noncovalent Attractions in Biomolecules02:35

Noncovalent Attractions in Biomolecules

Noncovalent attractions are associations within and between molecules that influence the shape and structural stability of complexes. These interactions differ from covalent bonding in that they do not involve sharing of electrons.
Four types of noncovalent interactions are hydrogen bonds, van der Waals forces, ionic bonds, and hydrophobic interactions.
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Noncovalent Attractions in Biomolecules02:35

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piRNA - Piwi-interacting RNAs02:57

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Updated: May 25, 2026

Associated Chromosome Trap for Identifying Long-range DNA Interactions
14:49

Associated Chromosome Trap for Identifying Long-range DNA Interactions

Published on: April 23, 2011

Insulators, long-range interactions, and genome function.

Jingping Yang1, Victor G Corces

  • 1Department of Biology, Emory University, Atlanta, GA 30322, USA.

Current Opinion in Genetics & Development
|January 24, 2012
PubMed
Summary
This summary is machine-generated.

DNA insulators are protein complexes that regulate genome interactions. Recent evidence reveals these sequences have diverse functions beyond their classical roles in blocking gene communication and heterochromatin spread.

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Area of Science:

  • Genomics
  • Molecular Biology
  • Epigenetics

Background:

  • Insulators are DNA-protein complexes mediating genomic interactions.
  • Traditionally, they block enhancer-promoter communication and heterochromatin spread.
  • Emerging data suggests more complex insulator functions.

Purpose of the Study:

  • To review recent evidence on insulator functions.
  • To highlight the nuanced roles of insulator sequences.
  • To present functions beyond classical definitions.

Main Methods:

  • Literature review of recent genomic studies.
  • Analysis of experimental data on insulator activity.
  • Synthesis of findings on DNA-protein interactions.

Main Results:

  • Insulator function is context-dependent.
  • Specific insulator-bound sequences determine interaction outcomes.
  • A broader range of insulator functions is now recognized.

Conclusions:

  • Insulators play multifaceted roles in genome organization.
  • Understanding insulator mechanisms is crucial for epigenetics.
  • Further research will clarify the full spectrum of insulator activities.