Do chromatin changes around a nascent double strand DNA break spread spherically into linearly non-adjacent chromatin?

In the last decade, a lot has been done in elucidating the sequence of events that occur at the nascent double strand DNA break. Nevertheless, the overall structure formed by the DNA damage response factors around the break site, the repair focus, remains poorly understood. Although most of the data...

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Main Author: Velibor eSavic
Format: Article
Language:English
Published: Frontiers Media S.A. 2013-07-01
Series:Frontiers in Genetics
Subjects:
Online Access:http://journal.frontiersin.org/Journal/10.3389/fgene.2013.00139/full
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author Velibor eSavic
Velibor eSavic
author_facet Velibor eSavic
Velibor eSavic
author_sort Velibor eSavic
collection DOAJ
description In the last decade, a lot has been done in elucidating the sequence of events that occur at the nascent double strand DNA break. Nevertheless, the overall structure formed by the DNA damage response factors around the break site, the repair focus, remains poorly understood. Although most of the data presented so far only address events that occur in chromatin in cis around the break, there are strong indications that in mammalian systems it may also occur in trans, analogous to the recent findings showing this if budding yeast. There have been attempts to address the issue but the final proof is still missing due to lack of a proper experimental system. If found to be true, the spatial distribution of DDR factors would have a major impact on the neighbouring chromatin both in cis and in trans, significantly affecting local chromatin function; gene transcription and potentially other functions.
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spelling doaj.art-6cbe63da0bf047fe96cbb62d65c3ce5d2022-12-22T00:14:01ZengFrontiers Media S.A.Frontiers in Genetics1664-80212013-07-01410.3389/fgene.2013.0013954389Do chromatin changes around a nascent double strand DNA break spread spherically into linearly non-adjacent chromatin?Velibor eSavic0Velibor eSavic1University of SussexUniversity of SussexIn the last decade, a lot has been done in elucidating the sequence of events that occur at the nascent double strand DNA break. Nevertheless, the overall structure formed by the DNA damage response factors around the break site, the repair focus, remains poorly understood. Although most of the data presented so far only address events that occur in chromatin in cis around the break, there are strong indications that in mammalian systems it may also occur in trans, analogous to the recent findings showing this if budding yeast. There have been attempts to address the issue but the final proof is still missing due to lack of a proper experimental system. If found to be true, the spatial distribution of DDR factors would have a major impact on the neighbouring chromatin both in cis and in trans, significantly affecting local chromatin function; gene transcription and potentially other functions.http://journal.frontiersin.org/Journal/10.3389/fgene.2013.00139/fullDNA damage responseHistone ModificationsATMChromatin structureH2AXRNF168
spellingShingle Velibor eSavic
Velibor eSavic
Do chromatin changes around a nascent double strand DNA break spread spherically into linearly non-adjacent chromatin?
Frontiers in Genetics
DNA damage response
Histone Modifications
ATM
Chromatin structure
H2AX
RNF168
title Do chromatin changes around a nascent double strand DNA break spread spherically into linearly non-adjacent chromatin?
title_full Do chromatin changes around a nascent double strand DNA break spread spherically into linearly non-adjacent chromatin?
title_fullStr Do chromatin changes around a nascent double strand DNA break spread spherically into linearly non-adjacent chromatin?
title_full_unstemmed Do chromatin changes around a nascent double strand DNA break spread spherically into linearly non-adjacent chromatin?
title_short Do chromatin changes around a nascent double strand DNA break spread spherically into linearly non-adjacent chromatin?
title_sort do chromatin changes around a nascent double strand dna break spread spherically into linearly non adjacent chromatin
topic DNA damage response
Histone Modifications
ATM
Chromatin structure
H2AX
RNF168
url http://journal.frontiersin.org/Journal/10.3389/fgene.2013.00139/full
work_keys_str_mv AT veliboresavic dochromatinchangesaroundanascentdoublestranddnabreakspreadsphericallyintolinearlynonadjacentchromatin
AT veliboresavic dochromatinchangesaroundanascentdoublestranddnabreakspreadsphericallyintolinearlynonadjacentchromatin