Real-time imaging of DNA loop extrusion by condensin.
Real-time imaging of DNA loop extrusion by condensin.
复制标题
DOI:
10.1126/science.aar7831
复制
发表时间:
2018-04-06
期刊:
影响因子:
--
通讯作者:
Dekker C
中科院分区:
文献类型:
--
作者:
Ganji M;Shaltiel IA;Bisht S;Kim E;Kalichava A;Haering CH;Dekker C
It has been hypothesized that Structural Maintenance of Chromosomes (SMC) protein complexes such as condensin and cohesin spatially organize chromosomes by extruding DNA into large loops. Here, we provide unambiguous evidence for loop extrusion by directly visualizing the formation and processive extension of DNA loops by yeast condensin in real-time. We find that a single condensin complex is able to extrude tens of kilobase pairs of DNA at a force-dependent speed of up to 1,500 base pairs per second, using the energy of ATP hydrolysis. Condensin-induced loop extrusion is strictly asymmetric, which demonstrates that condensin anchors onto DNA and reels it in from only one side. Active DNA loop extrusion by SMC complexes may provide the universal unifying principle for genome organization.
登录
查看更多内容
DOI:
10.15252/embj.201797596
发表时间:
2017-12-01
期刊:
The EMBO journal
影响因子:
--
作者:
Eeftens JM;Bisht S;Kerssemakers J;Kschonsak M;Haering CH;Dekker C
通讯作者:
Dekker C
DOI:
10.1126/science.1236083
发表时间:
2013-11-22
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Naumova N;Imakaev M;Fudenberg G;Zhan Y;Lajoie BR;Mirny LA;Dekker J
通讯作者:
Dekker J
影响因子:
48
作者:
Tokunaga, Makio;Imamoto, Naoko;Sakata-Sogawa, Kumiko
通讯作者:
Sakata-Sogawa, Kumiko
影响因子:
14.9
作者:
Alipour E;Marko JF
通讯作者:
Marko JF
影响因子:
9.2
作者:
Strick, TR;Kawaguchi, T;Hirano, T
通讯作者:
Hirano, T