Structure of Telomerase with Telomeric DNA.
Structure of Telomerase with Telomeric DNA.
复制标题
用端粒DNA的端粒酶结构。
DOI:
10.1016/j.cell.2018.04.038
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发表时间:
2018-05-17
期刊:
影响因子:
64.5
通讯作者:
Feigon J
中科院分区:
文献类型:
--
作者:
Jiang J;Wang Y;Sušac L;Chan H;Basu R;Zhou ZH;Feigon J
Telomerase is an RNA-protein complex (RNP) that extends telomeric DNA at the 3’-ends of chromosomes using its telomerase reverse transcriptase (TERT) and integral template-containing telomerase RNA (TER). Its activity is a critical determinant of human health, affecting aging, cancer, and stem cell renewal. Lack of atomic models of telomerase, particularly one with DNA bound, has limited our mechanistic understanding of telomeric DNA repeat synthesis. We report the 4.8Å resolution cryo-electron microscopy structure of active Tetrahymena telomerase bound to telomeric DNA. The catalytic core is an intricately interlocked structure of TERT and TER, including a previously structurally uncharacterized TERT domain that interacts with TEN domain to physically enclose TER and regulate activity. This complete structure of a telomerase catalytic core and its interactions with telomeric DNA from the template to telomere-interacting p50-TEB complex provides unanticipated insights into telomerase assembly and catalytic cycle and a new paradigm for a reverse transcriptase RNP.
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影响因子:
16.8
作者:
Berman, Andrea J.;Akiyama, Benjamin M.;Stone, Michael D.;Cech, Thomas R.
通讯作者:
Cech, Thomas R.
DOI:
10.1038/nrg3246
发表时间:
2012-10
期刊:
Nature reviews. Genetics
影响因子:
--
作者:
通讯作者:
--
影响因子:
11.4
作者:
Chen, Yu;Fender, Jessica;Varani, Gabriele
通讯作者:
Varani, Gabriele
影响因子:
14.9
作者:
Drozdetskiy A;Cole C;Procter J;Barton GJ
通讯作者:
Barton GJ
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