CHROMATIN STRUCTURE AND DNA DAMAGE RESPONSE

Genomic integrity is constantly exposed to the products of metabolic activities and environmental processes that can induce DNA damage. A well-organized network of signaling cascade, designated as DNA damage response (DDR), encompasses systems of damage detection, cell-cycle check-point activation a...

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Main Author: M.A. NORMATOVA
Format: Article
Language:English
Published: Avicenna Tajik State Medical University 2017-04-01
Series:Паёми Сино
Subjects:
Online Access:https://doi.org/10.25005/2074-0581-2017-19-1-120-124
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author M.A. NORMATOVA
author_facet M.A. NORMATOVA
author_sort M.A. NORMATOVA
collection DOAJ
description Genomic integrity is constantly exposed to the products of metabolic activities and environmental processes that can induce DNA damage. A well-organized network of signaling cascade, designated as DNA damage response (DDR), encompasses systems of damage detection, cell-cycle check-point activation and repair mechanisms. The DNA damage pathways involve not only naked DNA strands but also higherorder chromatin components, such as histone variants and heterochromatin proteins. Any impediment of this regulation process may cause extensive damage and trigger the growth of tumours. The alterations in chromatin architecture occur during transcription and replication and are required to provide the accessibility of proteins to DNA strands. There is increasing evidence that DNA repair is also accompanied by the chromatin remodeling, particularly in the case of efficient detection and repair of DSBs where chromatin structure and nucleosome organization represent a significant barrier.
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spelling doaj.art-d247f70932464c71a0363ab819da0aca2023-06-23T20:06:38ZengAvicenna Tajik State Medical UniversityПаёми Сино2074-05812959-63272017-04-0119112012410.25005/2074-0581-2017-19-1-120-124CHROMATIN STRUCTURE AND DNA DAMAGE RESPONSEM.A. NORMATOVA0Avicenna Tajik State Medical University, Dushanbe, TajikistanGenomic integrity is constantly exposed to the products of metabolic activities and environmental processes that can induce DNA damage. A well-organized network of signaling cascade, designated as DNA damage response (DDR), encompasses systems of damage detection, cell-cycle check-point activation and repair mechanisms. The DNA damage pathways involve not only naked DNA strands but also higherorder chromatin components, such as histone variants and heterochromatin proteins. Any impediment of this regulation process may cause extensive damage and trigger the growth of tumours. The alterations in chromatin architecture occur during transcription and replication and are required to provide the accessibility of proteins to DNA strands. There is increasing evidence that DNA repair is also accompanied by the chromatin remodeling, particularly in the case of efficient detection and repair of DSBs where chromatin structure and nucleosome organization represent a significant barrier.https://doi.org/10.25005/2074-0581-2017-19-1-120-124dna damageatmatrchromatindsbsddr.
spellingShingle M.A. NORMATOVA
CHROMATIN STRUCTURE AND DNA DAMAGE RESPONSE
Паёми Сино
dna damage
atm
atr
chromatin
dsbs
ddr.
title CHROMATIN STRUCTURE AND DNA DAMAGE RESPONSE
title_full CHROMATIN STRUCTURE AND DNA DAMAGE RESPONSE
title_fullStr CHROMATIN STRUCTURE AND DNA DAMAGE RESPONSE
title_full_unstemmed CHROMATIN STRUCTURE AND DNA DAMAGE RESPONSE
title_short CHROMATIN STRUCTURE AND DNA DAMAGE RESPONSE
title_sort chromatin structure and dna damage response
topic dna damage
atm
atr
chromatin
dsbs
ddr.
url https://doi.org/10.25005/2074-0581-2017-19-1-120-124
work_keys_str_mv AT manormatova chromatinstructureanddnadamageresponse