Structures, activity and mechanism of the Type IIS restriction endonuclease PaqCI.
Structures, activity and mechanism of the Type IIS restriction endonuclease PaqCI.
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DOI：
10.1093/nar/gkad228
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发表时间：
2023-05-22
影响因子：
14.9
通讯作者：
中科院分区：
文献类型：
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作者：
Type IIS restriction endonucleases contain separate DNA recognition and catalytic domains and cleave their substrates at well-defined distances outside their target sequences. They are employed in biotechnology for a variety of purposes, including the creation of gene-targeting zinc finger and TAL effector nucleases and DNA synthesis applications such as Golden Gate assembly. The most thoroughly studied Type IIS enzyme, FokI, has been shown to require multimerization and engagement with multiple DNA targets for optimal cleavage activity; however, details of how it or similar enzymes forms a DNA-bound reaction complex have not been described at atomic resolution. Here we describe biochemical analyses of DNA cleavage by the Type IIS PaqCI restriction endonuclease and a series of molecular structures in the presence and absence of multiple bound DNA targets. The enzyme displays a similar tetrameric organization of target recognition domains in the absence or presence of bound substrate, with a significant repositioning of endonuclease domains in a trapped DNA-bound complex that is poised to deliver the first of a series of double-strand breaks. PaqCI and FokI share similar structural mechanisms of DNA cleavage, but considerable differences in their domain organization and quaternary architecture, facilitating comparisons between distinct Type IIS enzymes.
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影响因子：
14.9
作者：
Orlowski J;Bujnicki JM
通讯作者：
Bujnicki JM
影响因子：
5.6
作者：
Embleton, ML;Siksnys, V;Halford, SE
通讯作者：
Halford, SE
影响因子：
14.9
作者：
Rusling DA;Laurens N;Pernstich C;Wuite GJ;Halford SE
通讯作者：
Halford SE
影响因子：
14.9
作者：
Loenen WA;Dryden DT;Raleigh EA;Wilson GG
通讯作者：
Wilson GG
DOI：
10.1107/s0907444909052925
发表时间：
2010-02
期刊：
Acta crystallographica. Section D, Biological crystallography
影响因子：
--
作者：
Adams PD;Afonine PV;Bunkóczi G;Chen VB;Davis IW;Echols N;Headd JJ;Hung LW;Kapral GJ;Grosse-Kunstleve RW;McCoy AJ;Moriarty NW;Oeffner R;Read RJ;Richardson DC;Richardson JS;Terwilliger TC;Zwart PH
通讯作者：
Zwart PH