A TRF1-controlled common fragile site containing interstitial telomeric sequences.
A TRF1-controlled common fragile site containing interstitial telomeric sequences.
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DOI:
10.1007/s00412-012-0377-6
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发表时间:
2012-10
期刊:
影响因子:
1.6
通讯作者:
de Lange T
中科院分区:
文献类型:
--
作者:
Bosco N;de Lange T
Mouse telomeres have been suggested to resemble common fragile sites (CFS), showing disrupted TTAGGG fluorescent in situ hybridization signals after aphidicolin treatment. This “fragile” telomere phenotype is induced by deletion of TRF1, a shelterin protein that binds telomeric DNA and promotes efficient replication of the telomeric ds[TTAGGG]n tracts. Here we show that the chromosome-internal TTAGGG repeats present at human chromosome 2q14 form an aphidicolin-induced CFS. TRF1 binds to and stabilizes CFS 2q14 but does not affect other CFS, establishing 2q14 as the first CFS controlled by a sequence-specific DNA binding protein. The data show that telomeric DNA is inherently fragile regardless of its genomic position and imply that CFS can be caused by a specific DNA sequence.
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影响因子:
64.8
作者:
Bartkova, Jirina;Rezaei, Nousin;Gorgoulis, Vassilis G.
通讯作者:
Gorgoulis, Vassilis G.
影响因子:
64.8
作者:
Di Micco, Raffaella;Fumagalli, Marzia;di Fagagna, Fabrizio d'Adda
通讯作者:
di Fagagna, Fabrizio d'Adda
影响因子:
64.8
作者:
通讯作者:
--
影响因子:
4.7
作者:
Day, JP;Limoli, CL;Morgan, WF
通讯作者:
Morgan, WF
DOI:
10.1126/science.1170633
发表时间:
2009-11-13
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
de Lange T
通讯作者:
de Lange T