"ATR activation in response to ionizing radiation: still ATM territory".

"ATR activation in response to ionizing radiation: still ATM territory". Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

"ATR activation in response to ionizing radiation: still ATM territory". Abstract Text:

Myriam Cuadrado,Barbara Martinez-Pastor,Oscar Fernandez-Capetillo,

ABSTRACT : Unrepaired DNA double-strand breaks (DSBs) are a major cause for genomic instability. Therefore, upon detection of a DSB a rapid response must be assembled to coordinate the proper repair/signaling of the lesion or the elimination of cells with unsustainable amounts of DNA damage. Three members of the PIKK family of protein kinases -ATM, ATR and DNA-PKcs- take the lead and initiate the signaling cascade emanating from DSB sites. Whereas DNA-PKcs activity seems to be restricted to the phosphorylation of targets involved in DNA repair, ATM and ATR phosphorylate a broad spectrum of cell cycle regulators and DNA repair proteins. In the canonical model, ATM and ATR are activated by two different types of lesions and signal through two independent and alternate pathways. Specifically, ATR is activated by various forms of DNA damage, including DSBs, arising at stalled replication forks ("replication stress"), and ATM is responsible for the signaling of DSBs that are not associated with the replication machinery throughout the cell cycle. Recent evidence suggests that this model might be oversimplified and that coordinated crosstalk between ATM and ATR activation routes goes on at the core of the DNA damage response.

"ATR activation in response to ionizing radiation: still ATM territory". Publishing Authors By Initials

M Cuadrado,B Martinez-Pastor,O Fernandez-Capetillo,

For similar abstracts research abstracts see: abstracts research

PUBMED ID PMID:

MEDLINE DATE:

"ATR activation in response to ionizing radiation: still ATM territory". Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Cell division

VOLUME: 1

Page Numbers: 7

Journal Abbreviation:

ISSN: 1747-1028

DAY: 17

MONTH: 05

YEAR: 2006

"ATR activation in response to ionizing radiation: still ATM territory". Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 101251560

"ATR activation in response to ionizing radiation: still ATM territory". Keywords Mesh Terms:

KEYWORDS:

MESH TERMS:

Chemical & Substance for Abstract: "ATR activation in response to ionizing radiation: still ATM territory". Information

Substance Name:

Registry Number:

Grant and Affiliation Information for "ATR activation in response to ionizing radiation: still ATM territory".

AFFILIATION: Genomic Instability Group, Spanish National Cancer Center, Madrid, Spain. ofernandez@cnio.es.

Country: England

AGENCY:

GRANT:

ACRONYM:

MEDLINETA: Cell Div

REFSOURCE:

DATABASENAME:

ACCESSION NUMBER:

Number Hits: 0

"ATR activation in response to ionizing radiation: still ATM territory" Related Publications

• "ATR activation in response to ionizing radiation: still ATM territory".
• ATR signaling can drive cells into senescence in the absence of DNA breaks.
• Global chromatin compaction limits the strength of the DNA damage response.