Reverse transcriptases prime DNA synthesis.
Reverse transcriptases prime DNA synthesis.
复制标题
DOI:
10.1093/nar/gkad478
复制
发表时间:
2023-08-11
影响因子:
14.9
通讯作者:
中科院分区:
文献类型:
--
作者:
The discovery of reverse transcriptases (RTs) challenged the central dogma by establishing that genetic information can also flow from RNA to DNA. Although they act as DNA polymerases, RTs are distantly related to replicases that also possess de novo primase activity. Here we identify that CRISPR associated RTs (CARTs) directly prime DNA synthesis on both RNA and DNA. We demonstrate that RT-dependent priming is utilized by some CRISPR-Cas complexes to synthesise new spacers and integrate these into CRISPR arrays. Expanding our analyses, we show that primer synthesis activity is conserved in representatives of other major RT classes, including group II intron RT, telomerase and retroviruses. Together, these findings establish a conserved innate ability of RTs to catalyse de novo DNA primer synthesis, independently of accessory domains or alternative priming mechanisms, which likely plays important roles in a wide variety of biological pathways.
登录
查看更多内容
影响因子:
4.4
作者:
Iyer LM;Anantharaman V;Aravind L
通讯作者:
Aravind L
影响因子:
16
作者:
Bianchi, Julie;Rudd, Sean G.;Jozwiakowski, Stanislaw K.;Bailey, Laura J.;Soura, Violetta;Taylor, Elaine;Stevanovic, Irena;Green, Andrew J.;Stracker, Travis H.;Lindsay, Howard D.;Doherty, Aidan J.
通讯作者:
Doherty, Aidan J.
影响因子:
6.8
作者:
Aravind, L;Mazumder, R;Koonin, EV
通讯作者:
Koonin, EV
影响因子:
14.9
作者:
Gonzalez-Delgado, Alejandro;Rodriguez Mestre, Mario;Toro, Nicolas
通讯作者:
Toro, Nicolas
影响因子:
4.8
作者:
Cristofari, G;Gabus, C;Darlix, JL
通讯作者:
Darlix, JL