The Effect of the DNA Flanking the Lesion on Formation of the UvrB-DNA Preincision Complex
The Effect of the DNA Flanking the Lesion on Formation of the UvrB-DNA Preincision Complex
复制标题
病变侧翼 DNA 对 UvrB-DNA 预切割复合物形成的影响
DOI:
--
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发表时间:
2000
影响因子:
4.8
通讯作者:
N. Goosen
中科院分区:
文献类型:
--
作者:
G. Moolenaar;V. Monaco;G. A. van der Marel;J. H. van Boom;R. Visse;N. Goosen
The UvrB-DNA preincision complex plays a key role in nucleotide excision repair in Escherichia coli. To study the formation of this complex, derivatives of a DNA substrate containing a cholesterol adduct were constructed. Introduction of a single strand nick into either the top or the bottom strand at the 3′ side of the adduct stabilized the UvrB-DNA complex, most likely by the release of local stress in the DNA. Removal of both DNA strands up to the 3′ incision site still allowed formation of the preincision complex. Similar modifications at the 5′ side of the damage, however, gave different results. The introduction of a single strand nick at the 5′ incision site completely abolished the UvrA-mediated formation of the UvrB-DNA complex. Deletion of both DNA strands up to the 5′ incision site also prevented the UvrA-mediated loading of UvrB onto the damaged site, but UvrB by itself could bind very efficiently. This demonstrates that the UvrB protein is capable of recognizing damage without the matchmaker function of the UvrA protein. Our results also indicate that the UvrA-mediated loading of the UvrB protein is an asymmetric process, which starts at the 5′ side of the damage.
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DOI:
10.1016/s0021-9258(18)45185-x
发表时间:
1987-09
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
B. V. Houten;H. Gamper;Aziz Sancar;John E. Hearst
通讯作者:
B. V. Houten;H. Gamper;Aziz Sancar;John E. Hearst
DOI:
10.1073/pnas.86.14.5237
发表时间:
1989-07-01
影响因子:
11.1
作者:
ORREN, DK;SANCAR, A
通讯作者:
SANCAR, A
DOI:
--
发表时间:
1992
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Lin,JJ;Phillips,AM;Hearst,JE;Sancar,A
通讯作者:
Sancar,A
DOI:
--
发表时间:
1992
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Lin,JJ;Sancar,A
通讯作者:
Sancar,A
DOI:
--
发表时间:
1989
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Voigt,JM;VanHouten,B;Sancar,A;Topal,MD
通讯作者:
Topal,MD