Elba, a novel developmentally regulated chromatin boundary factor is a hetero-tripartite DNA binding complex

Chromatin boundaries subdivide eukaryotic chromosomes into functionally autonomous domains of genetic activity. This subdivision insulates genes and/or regulatory elements within a domain from promiscuous interactions with nearby domains. While it was previously assumed that the chromosomal domain l...

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Main Authors: Tsutomu Aoki, Ali Sarkeshik, John Yates, Paul Schedl
Format: Article
Language:English
Published: eLife Sciences Publications Ltd 2012-12-01
Series:eLife
Subjects:
Online Access:https://elifesciences.org/articles/00171
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author Tsutomu Aoki
Ali Sarkeshik
John Yates
Paul Schedl
author_facet Tsutomu Aoki
Ali Sarkeshik
John Yates
Paul Schedl
author_sort Tsutomu Aoki
collection DOAJ
description Chromatin boundaries subdivide eukaryotic chromosomes into functionally autonomous domains of genetic activity. This subdivision insulates genes and/or regulatory elements within a domain from promiscuous interactions with nearby domains. While it was previously assumed that the chromosomal domain landscape is fixed, there is now growing evidence that the landscape may be subject to tissue and stage specific regulation. Here we report the isolation and characterization of a novel developmentally restricted boundary factor, Elba. We show that Elba is an unusual hetero-tripartite protein complex that requires all three proteins for DNA binding and insulator activity.
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spelling doaj.art-ac4ee55961644bb487ebd502bcd032932022-12-22T03:52:05ZengeLife Sciences Publications LtdeLife2050-084X2012-12-01110.7554/eLife.00171Elba, a novel developmentally regulated chromatin boundary factor is a hetero-tripartite DNA binding complexTsutomu Aoki0Ali Sarkeshik1John Yates2Paul Schedl3Department of Molecular Biology, Princeton University, Princeton, United StatesDepartment of Chemical Physiology, Scripps Research Institute, La Jolla, United StatesDepartment of Chemical Physiology, Scripps Research Institute, La Jolla, United StatesDepartment of Molecular Biology, Princeton University, Princeton, United StatesChromatin boundaries subdivide eukaryotic chromosomes into functionally autonomous domains of genetic activity. This subdivision insulates genes and/or regulatory elements within a domain from promiscuous interactions with nearby domains. While it was previously assumed that the chromosomal domain landscape is fixed, there is now growing evidence that the landscape may be subject to tissue and stage specific regulation. Here we report the isolation and characterization of a novel developmentally restricted boundary factor, Elba. We show that Elba is an unusual hetero-tripartite protein complex that requires all three proteins for DNA binding and insulator activity.https://elifesciences.org/articles/00171boundaryInsulatorDomainChromatinBithoraxDevelopment
spellingShingle Tsutomu Aoki
Ali Sarkeshik
John Yates
Paul Schedl
Elba, a novel developmentally regulated chromatin boundary factor is a hetero-tripartite DNA binding complex
eLife
boundary
Insulator
Domain
Chromatin
Bithorax
Development
title Elba, a novel developmentally regulated chromatin boundary factor is a hetero-tripartite DNA binding complex
title_full Elba, a novel developmentally regulated chromatin boundary factor is a hetero-tripartite DNA binding complex
title_fullStr Elba, a novel developmentally regulated chromatin boundary factor is a hetero-tripartite DNA binding complex
title_full_unstemmed Elba, a novel developmentally regulated chromatin boundary factor is a hetero-tripartite DNA binding complex
title_short Elba, a novel developmentally regulated chromatin boundary factor is a hetero-tripartite DNA binding complex
title_sort elba a novel developmentally regulated chromatin boundary factor is a hetero tripartite dna binding complex
topic boundary
Insulator
Domain
Chromatin
Bithorax
Development
url https://elifesciences.org/articles/00171
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AT johnyates elbaanoveldevelopmentallyregulatedchromatinboundaryfactorisaheterotripartitednabindingcomplex
AT paulschedl elbaanoveldevelopmentallyregulatedchromatinboundaryfactorisaheterotripartitednabindingcomplex