Preferential repair of the transcribed DNA strand in plants.
Preferential repair of the transcribed DNA strand in plants.
复制标题
优先修复植物中转录的DNA链。
DOI:
10.3389/fpls.2011.00105
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发表时间:
2011
影响因子:
5.6
通讯作者:
Britt AB
中科院分区:
文献类型:
--
作者:
Fidantsef AL;Britt AB
UV-induced pyrimidine dimers block the progression of both DNA and RNA polymerases. In order to reduce the disruptive effect of these lesions on gene expression, bacteria, yeasts, and animals preferentially repair the transcribed strand of actively expressed genes, essentially employing the stalled polymerase as a detector for bulky lesions. It has been assumed, but not demonstrated, that this prioritization of repair also occurs in plants. Here we demonstrate that in the constitutively expressed gene encoding the RNA polymerase II large subunit cyclobutane pyrimidine dimers are removed from the transcribed strand more rapidly than from the non-transcribed strand.
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